The 600wh one I have I got on sale for 250$ and has a 1000w sine wave inverter and ups built in
The 400$ one I linked to is 1075wh and has a 2000w sine wave inverter and ups built in
Plus the bms needed for maintaining the lipo’s
The 400$ one I linked to is 1075wh and has a 2000w sine wave inverter and ups built in
Plus the bms needed for maintaining the lipo’s