Ideal for tablets, laptops and cameras, the Sherpa 50 Solar Kit with Inverter is designed to keep you powered up while you're on the go. You can either keep it plugged in or recharge it via USB, 12VAC or solar power every three to six months. Battery Capacity: 11 Volts/58 watt hours/5200 mAh Cell Type: Li-NMC Fuses: User-replaceable 15-Amp fuse