株式会社日本蓄電池 List of Products and Services

PLB's battery packs are based on high-performance LFP (lithium iron phosphate) cells produced in-house and are equipped with an advanced BMS (Battery Management System). They create an optimal power environment for sites where reliability is essential, ranging from industrial equipment to energy storage systems. 【Product Features】 - High reliability through integrated production: Complete in-house process from cell to pack assembly All processes, including raw material processing, cell manufacturing, BMS development, and pack assembly, are completed in-house at PLB. Data from each process is linked, ensuring high-quality traceability. - Advanced BMS: Balancing safety and longevity In addition to overcharge, over-discharge, and overcurrent protection, the system includes a cell balancing function that optimizes voltage balance between cells. This maximizes the performance of the cells and contributes to the longevity of the system. - Excellent environmental resistance: Stable operation under harsh temperature conditions Utilizing the characteristics of the internal cells and considering heat dissipation in the enclosure design, the product is suitable for outdoor installation and use in harsh industrial environments.

• Lithium-ion battery

PLB's lithium battery products have the following excellent features: - Wide operating temperature: Capable of withstanding harsh environments from -40°C to 60°C Covers a wide operating temperature range from freezing cold regions to hot and humid environments, maintaining stable output. - Excellent low-temperature characteristics: Discharge at -40°C and charging from -20°C Supports discharge down to -40°C, even in low-temperature environments where typical lithium-ion batteries struggle. Additionally, it is designed for cold regions, supporting 0.5C charging between -20°C and -10°C. - 5C ultra-fast charging: Achieves operational recovery in the shortest time Supports extremely high-rate fast charging at 5C, boasting a charging efficiency of over 94%. It is ideal for applications such as logistics robots (AGV/AMR) and electric mobility, where minimizing downtime is crucial. - Efficient energy management: Low-loss design with over 94% charging efficiency Maintains high energy efficiency even during fast charging, enabling efficient operation while minimizing heat generation.

• Lithium-ion battery

To maximize the operational efficiency of automated guided vehicles (AGV/AMR), reducing charging time is essential. Our company offers the development and manufacturing of high-output lithium-ion battery packs that support rapid charging with high current. ■ Cell selection and thermal design based on "topping up" charging The biggest issue with rapid charging is "heat generation." In addition to selecting high-output cells with extremely low internal resistance, we design pack structures that pursue heat dissipation efficiency. This minimizes degradation due to heat and enables full-time operation through "topping up" charging during brief stop times (breaks or loading times). ■ Customization of dedicated BMS (protection circuit) for high current To ensure safety during rapid charging, we equip our systems with a dedicated BMS that features high-precision state of charge (SOC) monitoring and temperature management functions. We closely collaborate with manufacturers' charging systems to achieve optimal control of current and voltage values (such as CAN/RS485 communication). ■ Reliable data provision to reduce evaluation workload We provide essential evidence for manufacturers' product development, such as cycle life data during rapid charging and temperature rise evaluations. This equips your next-generation model with the powerful weapon of "rapid charging," shortening the time to market.

• Lithium-ion battery

In the development of new AGVs/AMRs, the "size" and "weight" of the power supply are the biggest challenges. Our company collaborates closely with manufacturers on enclosure design, proposing cell layouts and shape designs that minimize dead space. By adopting high energy density cells, we strongly support the miniaturization and lowering of the vehicle. We participate in the specification discussions from the design stage and build a consistent partnership from prototype to mass production as your dedicated "standard battery."

• Lithium-ion battery

We provide batteries designed for environments where standard batteries tend to experience performance degradation, such as cold storage warehouses and high-temperature manufacturing lines. By selecting cells and BMS suitable for your usage environment, we maintain stable voltage supply even under harsh conditions. We address complaints about existing batteries, such as "extremely poor performance in winter" and "rapid degradation due to heat." We offer optimal cell selection and pack design for users operating AGVs under specific environmental conditions.

• Lithium-ion battery

Is it already time to replace your lithium-ion battery? We solve concerns such as "genuine parts are too expensive" and "delivery times are long." We ensure compatibility with the battery currently in use in terms of voltage, capacity, and communication protocols (such as CAN), and we provide battery packs with equal or better output characteristics. Of course, we offer existing lineup products, and if there is nothing equivalent or better than what you are currently using, we can also create custom solutions. With prompt support and cost reduction proposals through optimized cell selection, we significantly reduce the maintenance costs for multiple AGVs you own.

• Lithium-ion battery

Why not replace the lead-acid batteries currently in use with lithium-ion batteries? They have a lifespan that is approximately 3 to 5 times longer than lead batteries, significantly reducing the frequency of replacements. Additionally, they support fast charging and topping up, so there’s no worry about running out of battery even in 24-hour operations. We can also accommodate size designs that fit existing battery boxes. This is a solution that simultaneously achieves reduced environmental impact (carbon neutrality) and lower operational costs.

• Lithium-ion battery

In product development, batteries often face the constraint of needing to fit into the "remaining space inside the casing." Our company manufactures fully customized compact battery packs, tailored to your device design, from battery type selection to shape and wiring specifications. ■ Wide Range of Battery Support We accommodate a wide range of batteries, including mainstream lithium-ion batteries (Li-ion), as well as nickel-cadmium batteries (Ni-cd) and nickel-metal hydride batteries (Ni-MH), which still have strong demand in industrial settings. We propose the optimal cells based on voltage, current characteristics, cycle life, and other application requirements. ■ Advanced Customization Capabilities We offer flexible responses to detailed specification changes, including optimization of shape through changes in cell arrangement (series or parallel), connector specifications, and lead wire lengths. ■ Commitment to Small Lots and Diverse Varieties If you have a case where "we need a small quantity of a few to several dozen units, and major manufacturers have turned us down," you can rest assured. We respond swiftly, from prototype production of a single unit to small-scale mass production. If you want "a special shape" or "to create a compatible product for an old model at a low cost," please feel free to consult with us.

• Secondary Cells/Batteries

Quickly respond to the prototype needs of "wanting to move first" in new product development. We provide optimal cell selection and circuit design, starting with lithium-ion batteries, contributing to the acceleration of product development.

• Secondary Cells/Batteries

Restore alternative battery packs that fit existing spaces using the latest cells. This allows you to avoid costly equipment replacements and enables ongoing maintenance. Small batch production We flexibly respond to the need for "just a few as spares." Large order quantities are not necessary. Complete reproduction of shape and connectors We meticulously reproduce special-shaped plastic cases, unique connectors, and even the lengths of lead wires. Performance improvement with the latest cells Compared to older cells from the past, the latest cells have higher energy density, which can provide added value such as "extended operating time" and "longer lifespan" even in the same size. Design based on physical analysis is also possible Even if specifications or drawings are not available, we can design a replacement by taking in your used battery pack. Please understand that we may not be able to meet all requests.

• Secondary Cells/Batteries

We will restore and manufacture nickel-cadmium and nickel-hydride battery packs that have been discontinued by the manufacturer with equivalent performance. For those who are struggling with "I still want to use the equipment, but there are no batteries," we support longevity with small-scale production starting from just one unit.

• Secondary Cells/Batteries

Lead batteries have a short cycle life and gradually experience capacity decline, requiring management and maintenance. Would you consider switching to lithium batteries to reduce maintenance and replacement costs? <Advantages compared to lead-acid batteries> - Lightweight: Can be reduced to less than half the weight of a standard lead battery. - Long operating time: Can maintain high voltage for longer, resulting in extended operating time until the equipment's cutoff voltage. - Reduced replacement frequency: Durable against deep discharges, significantly extending cycle life compared to lead batteries. - Easy storage: Low self-discharge means no need for recharging after vacations or equipment maintenance. - Strong against temperature variations: Can be used in temperature environments ranging from 5°C to 40°C. - Cost control: Initial costs are high, but running costs can be minimized. - No need for equipment changes: The main equipment and surrounding devices such as chargers can be used as is.

• Lithium-ion battery

Lead batteries have a short cycle life and gradually experience capacity degradation, requiring management and maintenance. Would you consider switching to lithium batteries to reduce maintenance and replacement costs? <Advantages compared to lead-acid batteries> - Lightweight: Can be reduced to less than half the weight of a standard lead battery. - Long operating time: Can maintain high voltage for a longer period, resulting in extended operating time until the equipment's cutoff voltage. - Reduced replacement frequency: Durable against deep discharges, significantly extending cycle life compared to lead batteries. - Easy storage: Low self-discharge means no need for recharging after vacations or equipment maintenance. - Resistant to temperature variations: Can be used in temperature environments ranging from 5°C to 40°C. - Cost control: Initial costs are high, but running costs can be minimized. - No need for equipment changes: The main equipment and surrounding devices such as chargers can be used as is.

• Lithium-ion battery

Lead batteries have a short cycle life and gradually experience capacity degradation, requiring management and maintenance. Would you consider switching to lithium batteries to reduce maintenance and replacement costs? <Advantages compared to lead-acid batteries> - Lightweight: Can be reduced to less than half the weight of a standard lead battery. - Long operating time: Can maintain high voltage for longer, resulting in extended operating time until the equipment's cutoff voltage. - Reduced replacement frequency: Durable against deep discharges, significantly extending cycle life compared to lead batteries. - Easy storage: Low self-discharge means no need for recharging after vacations or equipment maintenance. - Resistant to temperature changes: Can be used in temperature environments ranging from 5°C to 40°C. - Cost control: Initial costs are high, but running costs can be kept low. - No need for equipment changes: Existing equipment and peripherals like chargers can be used as is.

• Lithium-ion battery

Lead batteries have a short cycle life and gradually experience capacity degradation, requiring management and maintenance. Would you consider switching to lithium batteries to reduce maintenance and replacement costs? <Advantages compared to lead-acid batteries> - Lightweight: Can be reduced to less than half the weight of conventional lead batteries. - Long operating time: Can maintain high voltage for a longer period, resulting in extended operating time until the equipment's stop voltage. - Reduced replacement frequency: Durable against deep discharges, significantly extending cycle life compared to lead batteries. - Easy storage: Low self-discharge means no need for recharging after vacations or equipment maintenance. - Resistant to temperature changes: Can be used in temperature environments ranging from 5°C to 40°C. - Cost control: Initial costs are high, but running costs can be controlled. - No need for equipment changes: The main equipment and surrounding devices such as chargers can be used as they are.

• Lithium-ion battery

This product is a lithium-ion battery optimized for charging and discharging characteristics, communication functions, and safety design, intended for use in AGVs and AMRs. It is widely adopted in many transport systems as a replacement for lead batteries or as a power source for new AGV implementations.

• Lithium-ion battery

This product is a lithium-ion battery optimized for charge and discharge characteristics, communication functions, and safety design, intended for use in industrial vehicles. It is widely adopted in many transport systems as a replacement for lead batteries or as a power source for new AGV implementations.

• Lithium-ion battery

Batteries installed in picking carts, small transport equipment, and various devices require limited space, sufficient capacity, and safety. At our company, we leverage the technology developed for AGV and AMR batteries to design and manufacture battery packs for small devices, considering specifications on a case-by-case basis.

• Secondary Cells/Batteries

The nickel-cadmium and nickel-hydride batteries used in AGVs are robust and durable, but signs of deterioration such as the occurrence of defective cells and an increase in charging cycles are often observed after about four years of use. Additionally, the maintenance workload is significant, placing a burden on the site. Furthermore, due to the manufacturer's supply system, issues with delivery times and difficulties in procurement have led to an increasing number of users having to consider updating or discontinuing their AGV equipment. We will resolve these issues through the implementation of lithium units.

• Lithium-ion battery

Alkaline batteries for AGVs are very expensive. Due to the high replacement costs, some companies are considering discontinuing AGVs. What we propose this time is the activation of alkaline batteries. NiCd and NiMH batteries inevitably experience a decrease in capacity due to the effects of memory. Depending on the usage environment, cell degradation occurs in about four years. Activation treatment achieves capacity recovery, increased charge and discharge capabilities, and voltage stabilization. It also has cost-saving effects and is very economical.

• Secondary Cells/Batteries

Old equipment still often comes with NiCad and nickel-metal hydride battery packs. Some battery packs are already discontinued, and the manufacturer can no longer provide them. This can be very troublesome when you want to continue using equipment that is still operational. If we can take the actual item, it is possible to manufacture a replacement (new product). <Advantages of Replacement> 1. You can directly replace the existing product. (If it has lead wires or connectors, we can almost always make a proposal.) 2. The size and usability remain the same, and we can also propose an increase in capacity. *Please note that there may be cases where we can only propose up to the same capacity. 3. If connector terminals for discontinued batteries can be obtained, we can accommodate that. (We can also handle reinstallation of existing connectors.) 4. There may be cost reductions compared to purchasing from the manufacturer.

• Secondary Cells/Batteries

Alkaline batteries for AGVs are very expensive. Due to the high replacement costs, some companies are considering discontinuing AGVs. What we propose this time is the activation of alkaline batteries. NiCd and NiMH batteries inevitably experience a decrease in capacity due to the effects of memory. Depending on the usage environment, cell degradation occurs in about four years. The activation treatment achieves capacity recovery, increased charge and discharge capability, and voltage stabilization. It also has cost-saving effects and is very economical.

• Secondary Cells/Batteries

Lead batteries have a short cycle life and gradually experience capacity degradation, requiring management and maintenance. Would you consider switching to lithium batteries to reduce maintenance and replacement costs? <Advantages compared to lead-acid batteries> - Lightweight: Can be reduced to less than half the weight of a standard lead battery. - Long operating time: Can maintain high voltage for a longer period, resulting in extended operating time until the equipment's stop voltage. - Reduced replacement frequency: Durable against deep discharges, significantly extending cycle life compared to lead batteries. - Easy storage: Low self-discharge means no need for recharging after vacations or equipment maintenance. - Resistant to temperature variations: Can be used in temperature environments ranging from 5°C to 40°C. - Cost control: Initial costs are high, but running costs can be controlled. - No need for equipment changes: The main equipment and surrounding devices, such as chargers, can be used as is.

• Lithium-ion battery

Lead batteries have a short cycle life and gradually experience capacity degradation, requiring management and maintenance. Would you consider switching to lithium batteries to reduce maintenance and replacement costs? <Advantages compared to lead-acid batteries> - Lightweight: Can be reduced to less than half the weight of a standard lead battery. - Long operating time: Can maintain high voltage for a longer period, resulting in extended operating time until the equipment's stop voltage. - Reduced replacement frequency: Durable against deep discharges, significantly extending cycle life compared to lead batteries. - Easy storage: Low self-discharge means no need for recharging after vacations or equipment maintenance. - Strong against temperature variations: Can be used in temperature environments ranging from 5°C to 40°C. - Cost control: Initial costs are high, but running costs can be minimized. - No need for equipment changes: Existing equipment and peripherals such as chargers can be used as is.

• Lithium-ion battery

<Advantages Compared to Lead-Acid Batteries> - Lightweight: Can be reduced to less than half the weight of a conventional lead battery. - Long Operating Time: Can maintain high voltage for a longer period, resulting in extended operating time until the equipment's stop voltage. - Reduced Replacement Frequency: Durable against deep discharges, with a significantly extended cycle life compared to lead batteries. - Easy Storage: Low self-discharge means no need for recharging after vacations or equipment maintenance. - Strong Against Temperature Changes: Can be used in temperature environments ranging from 5°C to 40°C. - Cost Control: Initial costs are high, but running costs can be kept low. - No Need for Equipment Changes: The main equipment and peripheral devices such as chargers can be used as is.

• Lithium-ion battery

In the agricultural sector, the electrification of various tools and machinery is progressing as a response to reducing the workload and addressing labor shortages. On the other hand, in agricultural settings, there are demanding conditions for batteries, such as outdoor use, dust, vibration, and long operating hours. Our lithium batteries are designed based on the technology developed for AGVs and industrial machinery, with specifications suitable for agricultural applications in mind.

• Lithium-ion battery

Lead batteries have a short cycle life and gradually experience capacity decline, requiring management and maintenance. Would you consider switching to lithium batteries to reduce maintenance and replacement costs? <Advantages compared to lead-acid batteries> - Lightweight: Can be reduced to less than half the weight of a standard lead battery. - Long operating time: Can maintain high voltage for a longer period, resulting in extended operating time until the equipment's cutoff voltage. - Reduced replacement frequency: Durable against deep discharges, significantly extending cycle life compared to lead batteries. - Easy storage: Low self-discharge means no need for recharging after vacations or equipment maintenance. - Resistant to temperature variations: Can be used in temperature environments ranging from 5°C to 40°C. - Cost control: Total costs can be reduced. - No need for equipment changes: The main equipment and surrounding devices such as chargers can be used as is.

• Lithium-ion battery

Our company designs, manufactures, and sells lithium batteries optimized for charging and discharging characteristics, communication functions, and safety design, with the assumption of use in AGVs and AMRs. They are widely adopted in many transport systems as a replacement for lead batteries or as a power source for new AGV implementations.

• Lithium-ion battery

Lead batteries have a short cycle life and gradually experience capacity decline, requiring management and maintenance. Would you consider switching to lithium batteries to reduce maintenance and replacement costs? <Advantages compared to lead-acid batteries> - Lightweight: Can be reduced to less than half the weight of a standard lead battery. - Long operating time: Can maintain high voltage for a longer period, resulting in extended operating time until the equipment's cutoff voltage. - Reduced replacement frequency: Durable against deep discharges, significantly extending cycle life compared to lead batteries. - Easy storage: Low self-discharge means no need for recharging after vacations or equipment maintenance. - Strong against temperature variations: Can be used in temperature environments ranging from 5°C to 40°C. - Cost control: Total costs can be reduced. - No need for equipment changes: The main equipment and surrounding devices such as chargers can be used as is.

• Lithium-ion battery

Alkaline batteries for AGVs are very expensive. Due to the high replacement costs, some companies are considering discontinuing AGVs. What we propose this time is the activation of alkaline batteries. NiCd and NiMH batteries inevitably experience a decrease in capacity due to the effects of memory. Depending on the usage environment, cell degradation occurs in about four years. The activation process achieves capacity recovery, increased charge and discharge capabilities, and voltage stabilization. It also has cost-saving effects and is very economical. Please feel free to consult us first.

• Secondary Cells/Batteries

Alkaline batteries for AGVs are very expensive. Due to the high replacement costs, some companies are considering discontinuing AGVs. What we propose this time is the activation of alkaline batteries. NiCd and NiMH batteries cannot avoid capacity degradation due to memory effects and other influences. Depending on the usage environment, cell deterioration occurs in about four years. Activation treatment achieves capacity recovery, increased charge and discharge capabilities, and voltage stabilization. It also has cost-saving effects and is very economical. Please feel free to consult with us first.

• Secondary Cells/Batteries
• Lithium-ion battery

Lithium conversion with the charger as is. It is possible to replace existing lead-acid battery chargers with lithium ones. This significantly reduces the introduction costs. Achieving 24-hour operation with "topping up" charging. Short-duration topping up charging, which was strictly prohibited for lead-acid batteries, is now possible. This allows for recovery during brief breaks, minimizing the downtime of AGVs. Upgrade options for non-contact and rapid charging are also available. For sites aiming for further automation, we also offer customization for integration with non-contact power supply systems and rapid charging specifications. Maintenance labor reduced by 90%. No need for water replenishment or management of distilled water. The risk of floor corrosion due to battery liquid leaks is eliminated, maintaining a clean warehouse environment. Custom solutions available for small lots or from one unit. For AGVs with special shapes or older vehicles that do not fit standard products, we design and manufacture optimal sizes and capacities from one unit under our domestic inspection system.

• Lithium-ion battery

"I want to miniaturize the AGV, but the battery takes up too much space." "Compact AGVs have a small battery capacity and frequently run out of charge." Our high-density lithium-ion batteries solve these dilemmas in logistics settings. Despite their thin and compact design that fits into limited internal spaces, they maintain a high energy density. Furthermore, with rapid charging capabilities that allow for full recovery in a short time, we enable operations close to 24-hour functionality without increasing battery size. We respond to the design and operational needs of "wanting to be smaller and more mobile" with reliable quality through domestic in-house inspections.

• Lithium-ion battery

Overwhelming energy density (lightweight and compact) Achieving the same amount of electrical energy as lead batteries with overwhelming lightness. It is now possible to reduce the total weight of the vehicle by several hundred kilograms, minimizing damage to the floor and loss of driving energy. Improved loading efficiency (maximizing payload) With lighter batteries, it is possible to carry more cargo or higher-functionality optional equipment. This greatly contributes to improved work efficiency. Low center of gravity design and layout flexibility Not only lightweight, but also customizable in shape. This allows for optimal placement within the vehicle, supporting advanced vehicle balance design such as improved stability during turns. Easy weight reduction without charger replacement Our batteries can be designed to use existing lead battery chargers as is. This enables upgrades to lightweight and lithium technology while keeping capital investment to a minimum. Reliability through domestic self-inspection While pursuing weight reduction, we maintain robustness and safety suitable for industrial applications. We deliver only products that have passed strict inspection standards.

• Lithium-ion battery

Existing chargers can be reused as is. The cost of replacing with a lithium-specific charger and the electrical work for installation will be reduced to "zero." A smooth transition utilizing existing infrastructure is possible. No modifications needed on the vehicle side (plug-in replacement). By customizing the shape and voltage to match existing lead batteries, operations can start simply by swapping them out without changing the circuit design on the vehicle side. Extending lifespan reduces the "number of replacements." With a cycle life more than three times that of lead batteries, future battery replacement costs can be significantly minimized. Support for small lots and shortest delivery times. Replacement can be done from just one unit. Instead of changing all vehicles at once, it is possible to first trial with one unit and then gradually proceed with lithium conversion according to your budget. "Fail-proof" implementation support through domestic in-house inspection. Vehicle specifications are checked in advance, and shipments are made with optimal settings. Hidden costs due to post-implementation troubles are thoroughly eliminated.

• Lithium-ion battery

Overwhelming charging speed (supports fast charging) Compared to lead batteries, the ability to accept electricity (charging acceptance) is extremely high, allowing for full charging in a short time. You can secure the power needed for the next operation during brief moments like lunch breaks or shift changes. Damage-free "topping up" charging It allows for "frequent charging," which was a cause of reduced lifespan for lead batteries. There is no memory effect, enabling a shift to operations where you can charge during gaps without worrying about battery levels. High output maintained until the end of discharge While lead batteries experience power reduction as the charge decreases, lithium batteries maintain stable voltage until the very end. Strong operation and elevation are possible right up until just before charging. Effective use of existing charging infrastructure With a unique BMS (Battery Management System), charging efficiency is improved while utilizing existing lead battery chargers. You can introduce "fast charging" without significantly changing the equipment. Support for complete automation of charging operations Because charging time is short, it pairs excellently with automatic charging systems and contactless power supply. It is ideal for building a "non-stop site" that does not rely on human intervention.

• Lithium-ion battery

Zero contact wear and maintenance-free Since there are no physical contacts, issues such as contact failure due to wear or electrical disturbances caused by dirt do not occur. This significantly reduces the hassle and cost of parts replacement. High compatibility that allows for "a few centimeters of misalignment" The BMS flexibly controls the voltage and current fluctuations unique to non-contact power supply. Even if the stopping position is slightly misaligned, it is designed to reliably start rapid charging. Optimized for short-duration, high-frequency "topping up" charging Leveraging the characteristics of lithium-ion batteries, it automatically charges every time the vehicle stops. There is no need to increase the battery capacity, achieving both vehicle miniaturization and longevity. Support for retrofitting existing vehicles to wireless charging With custom solutions starting from a single unit, we also offer design and inspection services to upgrade existing wired charging AGVs to non-contact charging specifications.

• Lithium-ion battery

Shape Customization Custom shape design is possible to fit installation spaces, such as "thin," "elongated," and "L-shaped." You can build an optimal power supply without compromising the design of your AGV or conveyor. Flexible support for special voltage and capacity settings In addition to standard voltages like 12V, 24V, and 48V, we accept special voltage settings tailored to your system, as well as optimal capacity designs calculated based on operating time, starting from just one unit. High-quality assurance through in-house inspection We overturn the common belief that "small lots equal quality concerns." Using our own inspection equipment, we thoroughly conduct charge and discharge tests and safety checks, ensuring reliable quality suitable for industrial applications. Optimization of BMS (Battery Management System) Detailed customization in control aspects, such as communication protocols and protection function thresholds, is also possible. We provide batteries that are highly compatible with your system. From prototype to small-scale mass production We start with a prototype of one unit, and after evaluation, we move to small-scale production of several to dozens of units. We have a flexible supply system in place that aligns with the growth speed of your business.

• Lithium-ion battery

Discharge Capacity Measurement (Performance Evaluation) Conduct discharge tests under conditions close to actual load to measure the current "actual value" against the rated capacity. Internal Resistance Measurement Diagnose the degree of cell degradation and the condition of joints. Early detection of abnormalities that can cause voltage drops or heating. Simple Cycle Test Repeat charging and discharging to confirm the capacity degradation trend. Evaluate the validity of the expected lifespan (number of cycles). Appearance and Safety Inspection Professionally check the physical safety of the cell, including swelling, wiring damage, and insulation resistance.

• Lithium-ion battery

"Our lab cannot conduct puncture tests that pose a fire risk." "I want to confirm the safety limits of the cell pack under development." We will conduct the rigorous tests that are unavoidable in the development and adoption of lithium-ion batteries on your behalf. Our company offers contract services for safety tests that involve destruction, such as puncture tests that penetrate steel nails and tests for crush and external short circuits. "We can't afford to request tests from a full-fledged testing facility." We respond to such concerns.

• Lithium-ion battery

Support for various size specifications We manufacture to your desired dimensions for height, width, and depth without being constrained by existing standard products. We eliminate the stress of not fitting within just a few millimeters. Realization of special shapes (thin, elongated, deformed) With combinations of cells, we enable flexible layouts such as "ultra-thin" for ultra-low AGVs and "ultra-narrow" to fit within robot arms. Optimization of weight balance To enhance vehicle stability, we can design weight distribution considering balance, such as by splitting the battery into left and right (twin pack configuration). Customization of voltage and capacity simultaneously We provide optimal capacity settings calculated based on the required operating time, not just the shape. Reliable implementation through domestic in-house inspection Even for special shapes, we thoroughly conduct vibration, impact, and charge/discharge tests at our domestic facilities. We deliver robust products that are worthy of industrial use.

• Lithium-ion battery

Overwhelming power compatible with high C-rate Handles peak currents generated during excavation and heavy load lifting. Achieves engine-equivalent response without compromising work efficiency. Vibration and shock resistance "Heavy Duty" Optimizes the method of securing internal cells and wiring layout, Preventing failures caused by shocks during off-road driving and excavation. Environmental resistance (IP rating, thermal measures) Ensures high dust and water resistance, anticipating sites exposed to mud, water, and dust. Maintains stable output even during outdoor work in summer through heat dissipation design. "Shape flexibility" utilizing engine space Customizes the housing size to fit the available space in the engine room. Flexibly accommodates EV conversions (electrification modifications) of existing vehicles. Collaboration with vehicle control (CAN communication compatible) Shares information in real-time with the vehicle's controller through communication interfaces like CAN. Enables safe and advanced power management.

• Lithium-ion battery

Reduction of burden in exchange operations Carrying heavy spare batteries, which was common with lead batteries, is alleviated with lithium batteries due to significant weight reduction, thus easing the workload. Elimination of psychological pressure from "forgetting to charge" You are freed from the strict constraints of long charging times. Since recovery can be achieved with short charging periods, even if you forget to charge, you can restore functionality quickly, reducing the pressure of operational schedules. Significant cut in management workload Complicated maintenance tasks such as scheduling for equal charging and checking specific gravity in winter are no longer necessary. The Battery Management System (BMS) automatically monitors the condition, allowing humans to simply "operate it."

• Lithium-ion battery

Restore alternative battery packs that fit existing spaces using the latest cells. This allows you to avoid costly equipment replacements and enables continued maintenance. Small lot production We flexibly respond to the need for "just a few as spares." Large order quantities are not necessary. Complete reproduction of shape and connectors We meticulously reproduce special-shaped plastic cases, unique connectors, and even the lengths of lead wires. You can resume operation simply by swapping them out on the day they arrive. Performance improvement with the latest cells Compared to older cells, the latest cells have higher energy density, which can provide added value such as "extended operating time" and "longer lifespan" even in the same size. Optimal design of safety circuits (BMS) We not only connect the cells but also incorporate overcharge and over-discharge protection circuits. We optimize the protective functions to ensure safe use even in older charging environments. Design based on physical analysis is also possible Even if specifications or drawings are not available, we can analyze your used battery pack and design a replacement. Please understand that we may not be able to meet all requests.

• Secondary Cells/Batteries

Clean & Safety: The completely sealed structure eliminates the risk of hydrogen gas generation during charging, as seen with lead batteries, and the risk of sulfuric acid leakage. It is ideal for environments that require advanced hygiene management, such as semiconductor factories, pharmaceuticals, and food factories. Continued Use of Existing Chargers: There is no need to refresh the charging system, which was the biggest barrier to lithium adoption. Existing chargers for lead batteries can be utilized as is, significantly reducing implementation costs and enabling a quick replacement. BMS Designed Specifically for AGV/AMR: It incorporates a dedicated Battery Management System (BMS) that responds to the unique load fluctuations and regenerative braking of transport vehicles. While ensuring safety, it supports 24-hour operation with lithium's unique "opportunity charging." Maintenance-Free: There is no need for maintenance tasks such as replenishing distilled water or cleaning around the terminals.

• Lithium-ion battery