Features:Uses high-quality EV-grade A LiFePO4 cells that last more than 10 years and withstand over 4,000 cycles at 100% depth of discharge.100A BMS Smart Protection protects against overcurrent, overcharge, deep discharge, short circuit, and overtemperature, ensuring health and peak performance.5120Wh of energy is equivalent to 4×12V 100Ah LiFePO4 batteries (or 8×1 2V 100Ah AGM/lead-acid batteries at 1C discharge).Short-distance replacement of lead-acid batteries. Reduces volume by 50% and weight on 8 12V 100Ah lead-acid batteries, eliminating complex wiring and the need for regular maintenance.Max. 4P releases 20.48kWh of energy with 51.2V 400Ah battery system. Easy Installation and Wide Usage High performance and easy installation make it suitable for off-grid systems, home storage, outboard motors. 1C fast charging efficiency supports LiFePO4 chargers/solar panels/generator, fully charged in 3.3 hours with 30A LiFePO4 charger. Quality assurance backed by UL, FCC, CE, RoHS, UN38.3 certificates BATTERY Cell Type Prismatic LiFePO4 Cycle Life 4000 cycles @ 100% depth of discharge, 6000 @ 80%, 15000 @ 60% Nominal Voltage 51.2V Nominal Capacity 100Ah Energy 5120Wh Max. expansion (parallel and series) 4P Internal resistance ≤40 mOhm Certificates UL, FCC, CE, RoHS, UN38.3 BMS (ZSU) 100 AMax. continuous output power 5120 W Max. continuous charge current 100 AMax. continuous discharge current 100 AMax. Discharge current (5 sec) 280CHARGECharging voltage 57.6V ± 0.8VRecommended charging current 12A (0.2°C)TEMPERATURECharging temperature from 0℃ to 50℃Discharge temperature from -20℃ to 60℃Storage temperature from -10℃ to 50℃Connection terminals M8 screwsWeight 36.4kgDimensions 520 × 269 × 220 mmCasing material ABS (fire-retardant plastic)Protection class IP65