The Huawei LUNA2000-5kW-C0 is a power control module of Huawei's home battery system. The LUNA2000 batteries are made with lithium iron phosphate cells and can be stacked up to three high for a maximum storage capacity of 15kWh per stack. However, the system can be expanded with a second stack for a total capacity of up to 30kWh with two stacks in parallel.