$1299.99 @ Bass Pro Shops. I am glad to have this portable power station because in my place we have black outs and power failures due to severe weathers and tornadoes. It is a good secondary power station. If you choose to charge using solar. It is recommended to use 100 watt for lite use, 200 watt for medium use, and 400 watt for high use. When the power station is depleted the charging station turns off automatically while the unit is charging. Once it collects ample amount of power the charging ports will automatically resume charging.