The document describes an 8.1 kWh modular battery from Alpha ESS with the following key details:
- It has a usable capacity of 7.3 kWh, nominal voltage of 38.4V, and can discharge up to 90%.
- Each module is 332 x 570 x 223 mm and batteries can be connected in series of 6-20 for systems ranging from 48.6-162 kWh.
- Additional specs include an operating temperature range of -10°C to 50°C, IP20 protection, and a 3-year product warranty with 10-year performance warranty.