Batteries series Light Up Every Household LSRW5-7.5kW 5-7.5kWh | Low voltage battery LSRW6.1-6.6kWh 6.1-6.6kWh | Low voltage battery LSRR4.9-19.6kWh 4.9-19.6kWh | Low voltage battery LSRS10.2-20.4kWh 6.6-16.4kWh | High voltage battery