BYD 5.12kWh Lithium-ion Battery 51.2V (LV5.0+)

Note: BYD publish usable energy rather than a nominal nameplate, so the figure shown is already what you can take out - no derating needed. Test conditions are 100% depth of discharge, 0.2C, 25°C - so the full 5.12 kWh is available, and the initial module capacity is stated as 5.12 kWh. Round-trip efficiency is at least 95%, which is the number that actually decides how much of your solar makes it back to the load. 100 A continuous both ways against the LV5.0's 70 A - a 43% increase for roughly Rs 30,000, which is the main reason to choose this one. Same 200 A peak for 10 seconds. Slightly wider voltage window at 40-58.4 V, and it tolerates 55°C rather than 50°C. Stacks to 32 units for 163.84 kWh. 10-year warranty, stated on the sheet where the LV5.0 has none. Trade-off: communication is CAN and RS485 only - Wi-Fi and LAN need BYD's optional Smart module, where the LV5.0 has Bluetooth and Wi-Fi built in. Charge derating occurs between 0°C and +5°C. IP20, 45 kg. BYD publish no cycle life on this datasheet - there is no cycle-count row at all. Judge it on the warranty instead. Note the datasheet supplied is BYD's specification co-branded by Diwan International, BYD's authorised Pakistani distributor, and carries their local service numbers.