6kWh (51.2V 120Ah) LiFePO4 is mainstream household storage, compatible with 3kW–4kW 48V hybrid inverters, 4kW model recommended for full basic home appliances. Its 0.5C max discharge hits 3kW with 6kW short surge, matching the inverter’s 2x overload capacity for air conditioner and washing machine startup.

Keep power ratio at 1:0.7 to support both peak-valley arbitrage and power outage backup. Pick 3kW hybrid inverters for emergency backup only; 4kW MPPT inverters suit long-term solar self-consumption. The 88% system efficiency enables 1.4-hour full-load runtime. Equip with 10mm² DC cables and 125A breakers to avoid overheating, ideal for two-bedroom residences.