2016Wh capacity; 2500W Pure Sine Wave Inverter (4000W peak); Maximum 2500W dual input in 1 hour (AC + Solar); Maximum 1000W solar charge in 2 hours; 5 ways to charge (AC/Solar/Auto/Generator/Double AC+Solar); 15ms uninterruptible home backup UPS; Long-life LiFeP04 battery with over 3,500 charging cycles; Maximum 4000W AC output with parallel connection (12kW peak); Expandable up to 20kWh with B3000 expansion battery.