Ventev has your back with the powercell 5200. Charge any mobile device (smartphone, tablet, or wearable) with the portable power solution that goes anywhere. This 5200mAh portable battery delivers 21 hours of talk time or 17 hours of internet (4G), video, and audio playback. Compact size, perfect for frequent travelers. This 5200mAh portable battery charges up to one device on the go, providing up to10 hours of talk time or 9 hours of internet, video use, or audio playback.