Large capacity of 518Wh: Explorer 500 is equipped with a 518 watt-hour (24Ah, 21.6V) lithium-ion battery pack. It has 1* AC output (230V/500W, peak 1000W), 3*USB-A ports, 2* DC ports and 1*car port to power many devices such as mini-fridge, air pump and TV with pure sine wave inverter. Large capacity of 518Wh: Explorer 500 is equipped with a 518 watt-hour (24Ah, 21.6V) lithium-ion battery pack. It has 1* AC output (230V/500W, peak 1000W), 3*USB-A ports, 2* DC ports and 1*car port to power many devices such as mini-fridge, air pump and TV with pure sine wave inverter. Flexible charging options: Explorer 500 is equipped with built-in MPPT charge controller for maximum charging efficiency & can be easily charged with a SolarSaga 100 solar panel (sold separately) to provide eco-friendly, clean power. Other flexible charging options are also available: via the AC adapter on the mains or the car charging cable.