What is "stage charging" in a battery charger? / I have summarized information about stage charging. Please check it out from the catalog download.

Compact battery charger suitable for various charging applications.

The "GC Series" is a charger that employs a "two-stage charging" method for high efficiency and long battery life. The two-stage charging consists of an initial charge and a float charge. It is adopted as a built-in unit in chargers and is incorporated into portable power units and UPS systems. 【Features】 ■ Two-stage charging method ■ Wide input voltage: AC90–264V ■ Wide temperature range: -30℃ to +60℃ ■ W testing conducted in Taiwan and Japan ■ Primary and secondary side insulation design ■ Various protection features included *For more details, please refer to the PDF document or feel free to contact us.

• Other power sources
• Switching Power Supply
• Charger

"Tough charger" that endures even in harsh environments.

The HEP Series is a battery charger that supports a wide input voltage range with a three-stage charging method. Despite being a "high-quality" charger with various features and characteristics, the HEP Series is designed with an aluminum case filled with thermally conductive silicone, making it "tough." It can withstand applications in environments where high temperatures, high humidity, dust, high vibration (10G), oil (including machine oil), steam, altitude, oil smoke, and corrosive gases are present, which is why it is widely adopted due to its toughness. It is equipped with a PFC power factor correction circuit. The output voltage and current can be adjusted via an internal potentiometer. 【Features】 ■ High efficiency of 93.5% to 95.5% ■ Equipped with PFC (Power Factor Correction) circuit ■ Output voltage and current adjustable via internal potentiometer ■ Aluminum housing with high heat dissipation effect ■ Suitable for lead-acid and lithium-ion batteries ■ Adopts stage charging *For more details, please refer to the PDF document or feel free to contact us.

• Other power sources
• Switching Power Supply
• Charger

A compact battery charger capable of outputting 1600W with a high power density of up to 25W/inch³ with high efficiency.

The "RPB Series" is a compact battery charger capable of outputting 1600W with high efficiency and a maximum power density of 25W/inch³. By using communication protocols such as PMBus and CANBus, it can charge other types of batteries, including lithium-ion batteries. Additionally, the RPB-1600 is equipped with built-in protection circuit functions for safe and secure use. 【Features】 - Suitable for charging lead-acid and lithium-ion batteries - Adopts a three-stage charging method - Can be used in various countries with a wide input voltage range - Equipped with PFC (Power Factor Correction) circuit for power factor improvement - Forced cooling by built-in DC fan - Overvoltage protection, over-temperature protection, short-circuit protection, overload protection, battery reverse connection protection - Can be connected in parallel for a maximum of 4800W (2+1) - Built-in OR-ing FET *For more details, please refer to the PDF documentation or feel free to contact us.

• Other power sources
• Switching Power Supply
• Charger

By using the output program function, PMBus, and CANBus, it is possible to charge other types of batteries such as lithium-ion batteries!

The "RCB Series" is a 19-inch rack-mounted 1U (41mm) battery charger with an output of 1,600W. By utilizing output programming functions, PMBus, and CANBus, it can charge other types of batteries such as lithium-ion batteries. Additionally, the RCB-1600 has built-in protection circuit functions, ensuring safe and secure usage. 【Features】 - Suitable for charging lead-acid and lithium-ion batteries - Adopts a three-stage charging method - Can be used in various countries with a wide input voltage range - Equipped with a PFC (Power Factor Correction) circuit for improved power factor - Forced cooling with an internal DC fan - Overvoltage protection, over-temperature protection, short-circuit protection, overload protection, and battery reverse connection protection - 19-inch rack-mounted 1U, capable of a redundant system up to 8,000W - Built-in OR-ing FET and hot-swap (hot-plug) support *For more details, please refer to the PDF document or feel free to contact us.

• Other power sources
• Switching Power Supply
• Charger

The charger applicable to lead-acid batteries and lithium-ion batteries can be programmed according to the battery used. Operating temperature range: -30°C to +70°C.

The "ENC Series" battery charger is a desktop type battery charger that adopts a three-stage charging method. It is suitable for lead-acid batteries (non-sealed, sealed, gel, AGM) and lithium-ion batteries (lithium iron phosphate, ternary lithium-ion, etc.), and the program settings can be adjusted according to the type of battery used. Additionally, it has built-in protection circuit functions, ensuring safe and secure usage. 【Features】 - Suitable for charging lead-acid and lithium-ion batteries - Adopts a three-stage charging method - Can be used in various countries with a wide input voltage range - Programmable charging method (optional item: SBP-001) - Remote ON/OFF control and built-in temperature sensor - Charging voltage can be set according to the type of battery - Over-voltage protection, over-temperature protection, short-circuit protection, overload protection, battery reverse connection protection - Maximum efficiency: 90.5% *For more details, please refer to the PDF document or feel free to contact us.

• Other power sources
• Switching Power Supply
• Charger

Technocoat Co., Ltd. will be exhibiting at the j-dec 2026 Japan Die Casting Exhibition held at Pacifico Yokohama from November 12 to 14. 【Exhibition Details】 ■ Dates: November 12 (Thursday) to 14 (Saturday), 2026 ■ Venue: Pacifico Yokohama ■ Booth Number: E-34 We invite you to visit our booth during this opportunity.

The pinhole inspection for packaging engineering is fully automated, eliminating packaging defects based on certain quality standards. The judgment results and operational status can be managed via a monitor screen. - Quantitative management of quality standards for the pinhole inspection process - Ensuring the quality of the product's shelf life - Establishing evaluation criteria for the manufacturing process, achieving quantitative quality assurance - Slim and space-saving design that can be connected to existing production lines - Quick changeover for product variety switching can be handled in a short time by exchanging chambers - Fully domestically produced, allowing for rapid maintenance and troubleshooting - Example target works: pillow packaging, packaged rice (packaged cooked rice), etc. *Please consult us regarding the use of this product for pharmaceuticals.

Fukuda Co., Ltd. has been pursuing leak detection for 60 years and is committed to advancing the future of leak testing. 【 Supporting Various Leak Tests: Air Leak Test / Gas Leak Test (Hydrogen Gas, Helium Gas) 】 We develop, manufacture, and sell leak testing equipment to inspect airtightness and sealing properties. We will propose the appropriate testers and devices for each inspection target. 【 Target Industries and Examples of Inspection Targets 】 - Automotive Industry: Engines, FC components, valves and piping, various parts - Electronic Components Industry: Smartphones, keyless switches, various small sensors - Pharmaceuticals / Food / Cosmetics Industry: Bottle containers, syringes, vials, eye drop containers, pillow packaging, PTP packaging We will propose the most suitable leak testers for each industry. 【 ISO Certification 】JIS Q 9001:2015 (ISO 9001:2015)

Fukuda Corporation has been pursuing leak detection for 60 years and is dedicated to advancing the future of leak testing. 【 Supporting Various Leak Tests: Air Leak Test / Gas Leak Test (Hydrogen Gas, Helium Gas) 】 We develop, manufacture, and sell leak testing equipment to inspect airtightness and sealing performance. We will propose suitable testers and devices for each inspection target. 【 Target Industries and Examples of Inspection Targets 】 - Automotive Industry: Engines, FC components, valves and piping, various parts - Electronic Components Industry: Smartphones, keyless switches, various small sensors - Pharmaceuticals / Food / Cosmetics Industry: Bottle containers, syringes, vials, eye drop containers, pillow packaging, PTP packaging We will propose the most suitable leak testers for each industry. 【 ISO Certification 】JIS Q 9001:2015 (ISO 9001:2015)

This is a collection of links to Fukuda's technical columns. It covers various topics related to leak tests and more... Please check the related links for more information.