The pure sine wave inverter on 1000W rechargeable solar generator ensures safe charging for sensitive devices without damages, and minimums the electrical noise. Its BMS also manages and maintains each battery unit. It protects the batteries from over-current, over-voltage, over-temperature, safeguards you and your devices during use, and extends the battery life.It provides sufficient power as a CPAP battery backup power supply with its 1250Wh capacity, Support QI fast charger with PD 18W . With dual type C x 3 , and USB port x3 , it’s good outdoor tool for your camping, hiking, fishing and RV travel .Never worry to miss power when in the dark night !