20kWh 48v Deye lithium battery

A 20kWh Deye lithium battery system is a premium, high-capacity energy storage solution built for large residential homes or small commercial setups.Because Deye rarely builds a single 20kWh block, this capacity is almost always achieved by combining modular units. The most common setups include stacking four 5.12kWh modules (like the SE-G5.1 or BOS-G series) or pairing two 10kWh wall-mounted batteries. Key Specifications & FeaturesBattery Chemistry: Lithium Iron Phosphate (LiFePO4 / LFP) — highly stable, cobalt-free, and eliminates thermal runaway risks.Lifespan: Rated for 6,000+ charge cycles with roughly 70% capacity retention at end-of-life.Voltage Flexibility: Available in Low Voltage (48V/51.2V nominal) for standard residential setups and High Voltage (HV) configurations for rapid commercial-scale power distribution.BMS & Communication: Features an intelligent Battery Management System (BMS) that actively balances cells and pairs seamlessly with Deye Hybrid Inverters for automated time-of-use savings.Protection Rating: Typically IP65 waterproof and dustproof, allowing for versatile indoor or outdoor installation.Typical ApplicationsOvernight Power Security: Easily runs a modern house with high-load items like EV chargers and air conditioning through the night.Full Off-Grid Capability: Paired with a 10kW or 12kW Deye inverter, it forms a robust backup system that minimizes reliance on the grid.