Battery type: 12V sealed lead-acid, rechargeable Battery capacity: 4Ah Output socket: 12V DC / current max 5A USB Port – use E-CHARGE as a DC power source to charge/run various cell phones, computers, PDAs, iPods® or any device chargeable through a USB port. 12V Port – Use E-CHARGE to power 12V DC devices. Power On/Off switch – completely shuts off internal battery eliminating accidental shorting ...