itel 1.28kWh Lithium-ion Battery 12.8V (IPB-12100)

Note: itel recommend a 90% depth of discharge, so the usable figure shown is the nameplate at 90%. Note their cycle-life test is run at 80% DoD, not 90% - the deeper you actually run it, the fewer cycles you get. The entry model and a straight replacement for a 12 V lead-acid battery: 4 in series or 16 in parallel. Unusually for this price it has Bluetooth and the itel Energy app for OTA updates, a digital display showing state of charge and fault codes, and a built-in AC charger that wakes automatically from the inverter with no separate charger needed. Cycle life is >3000 at 25°C, 0.5C, 80% DoD to 80% end-of-life - well below the >6000 of itel's 48 V range, so this is a light-duty unit. ABS shell rather than metal, 10 kg, no communication port and no IP rating published. Note a printing error on the datasheet: peak discharge is given as 50 A for 500 ms against 90 A continuous. A peak below the continuous rating is not possible; treat 90 A as the working figure and confirm the peak with itel.