48V 20Ah LiFePO4 Battery 960Wh 2000 Cycles 20A Continuous for Energy Storage

48V 20Ah LiFePO4 Battery 960Wh 2000 Cycles 20A Continuous for Energy Storage

Reliable 48V Energy Storage
The LFP4820 is a 48V 20Ah lithium iron phosphate battery designed for small scale energy storage systems. With 960 watt hours of energy and a compact 442x245x88mm enclosure, it is ideal for home solar storage, telecom backup, and light electric vehicles. The integrated BMS provides complete protection against overcharge, over discharge, overcurrent, short circuit, and temperature extremes. RS485 and RS232 communication enable remote monitoring and integration with inverters and energy management systems.

Core Specifications
Nominal voltage is 48V with 20Ah rated capacity. Total energy is 960Wh. Internal resistance is ≤30 milliohms. Efficiency reaches 98 percent. Self discharge is less than 5 percent per month. Cycle life exceeds 2000 cycles at 1C and 80% depth of discharge while retaining over 80 percent of original capacity. Cell configuration is 15 series and 3 parallel (15S3P). Dimensions are 442mm length, 245mm width, and 88mm height. Weight is 13 kilograms. Terminal type is M4. Housing is SPCC steel with IP30 protection. Cell chemistry is LiFePO4. Communication interfaces include RS485 and RS232.

Discharge Performance
Continuous discharge current is 20 amps, sufficient for powering loads up to 960 watts. Pulse discharge current reaches 25 amps for less than 10 seconds, handling short term surges. Recommended voltage disconnect is 37.5V. BMS discharge cut off voltage is 37.5V with reconnect at 40.5V. Short circuit protection activates within 300 to 800 microseconds.

Charge Parameters
Charging uses the CC CV method with charge voltage range of 53.25V to 54.75V. Recommended float voltage is 50.6V to 51.75V. Standard charge current is 10 amps for optimal cycle life. Maximum charge current is 20 amps for faster charging. BMS charge cut off voltage is set to 54.75V.

Cycle Life and Longevity
Rated for over 2000 cycles at 1C charge/discharge and 80% depth of discharge while retaining over 80 percent of original capacity. For daily cycling, this provides over 5 years of service. The low self discharge and robust LFP chemistry ensure reliable operation.

Temperature Range
Discharge temperature range is -20°C to 60°C. Charge temperature range is 0°C to 55°C. Storage temperature range is -20°C to 60°C. BMS high temperature cut off is set to 60°C.

Communication and Monitoring
RS485 and RS232 ports allow the battery to communicate with compatible inverters, chargers, and monitoring systems. Real time data including voltage, current, temperature, state of charge, and fault codes can be read remotely. This enables automated system control and diagnostics.