The Rover Lithium 40Ah Power Station is ideal for powering 12V portable fridge/freezers and other items around your campsite. FEATURES:Lithium power, ideal for 12V portable fridges/freezer40AH Lithium LiFePO4 BatteryBuilt in MMPT Controller for Direct Solar ChargingMultiple output. The Companion Rover Lithium 40Ah Power Station belied its diminutive size and packed plenty of power to keep electrical gear charged on the recent Simpson Desert adventure. This station offers 3-way charging through AC, DC or solar via the built-in MPPT controller, and.