LFP lithium battery pack "BT500-4S1P"

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BT500-4S1P

last updated：Sep 19, 2025

AXON DATA MACHINES,INC.

Thorough safety with built-in BMS. Capable of a wide range of applications with performance that surpasses lead batteries.

The "BT500-4S1P" is a highly reliable battery pack that utilizes lithium iron phosphate cells and incorporates our self-developed BMS. It monitors overcharging, over-discharging, short circuits, and temperature anomalies in multiple ways to ensure stable power supply. Compared to lead-acid batteries of the same capacity, it boasts a weight reduction of over 40%, a lifespan of more than three times, and usable capacity that is more than double, demonstrating overwhelming performance differences. With zero maintenance required for long-term use, it can be safely implemented in vessels, camper vans, golf carts, solar power systems, and more. The BT500 series, which combines safety, efficiency, and reliability, contributes to a wide range of fields as a next-generation power solution. *For more details, please refer to the PDF materials or feel free to contact us.*

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Specifications Type: Lithium-ion battery, Lithium iron phosphate Nominal voltage: 12.8V Nominal capacity: 25Ah Nominal power: 320Wh Voltage range: 11.2–14.4V Maximum charging current: 25A Maximum discharge current: 25A / Continuous 60A/10Sec Recommended charging conditions: Charging voltage 14.4V Charging current 2.5A (0.2C) BMU protection functions: Overcurrent protection, short circuit protection, overvoltage protection, over-discharge protection, battery temperature protection, cell balance control BMU self-consumption current: Operating: below 30mA, Switch OFF: below 10uA Communication functions: RS232C or CAN Total voltage, cell voltage, battery temperature, current, alarms Display functions: Battery level indication: 4 LED lights Check with push button (Flashing: ~20%, 1 light on: 20–39%, 4 lights on: 80% or more) Operating temperature: Charging 0–45℃ Discharging -20℃–45℃ Storage temperature: -20℃–45℃ Casing: Material: Color steel plate t=0.5 Refer to the outline drawing. Weight: Approximately 3 kg *For more details, please refer to the PDF document or feel free to contact us.*