ESYSUNHOME LV ESS

The LV ESS is a 51.2 V stack of 5.12 kWh modules, sold as the 5KWH+ through to the 30KWH+ in one-module steps. Each module gives 4.864 kWh usable at 95% depth of discharge. It pairs with a low-voltage hybrid inverter such as ESYSUNHOME's single-phase HM5 or HM6, which provide the backup output.

The datasheet lists 4.864 kW of continuous charge and discharge power for every size, from one module to six. Adding modules adds storage but not power, so even the 30KWH+ delivers under 5 kW from the battery, which limits how many large loads it can run together.

The 10KWH+ (9.728 kWh) is the largest size under the 14 kWh point where the federal discount rate drops, and the 15KWH+ (14.592 kWh) goes just past it. The Australian warranty covers 120 months with at least 70% of available capacity, and a throughput limit of 21.5 MWh per 5.12 kWh module, which one full cycle a day would take about 12 years to reach. It also requires the system to stay online, installation within 6 months of production and any expansion within the first year. Charging needs at least 3 C, so check where the battery will sit if your winters get cold.