Get a reliable power bank for recharging your smartphone even when not near a power source.Limited Portable power back ups that keep power for later use on USB supported devices.This Portable Charger has a large 30000mAH power capacity and can handle up to 1000mAH of input current and 2100mAH output current Powerful rechargeable Li-Polymer battery battery that will last longer.5DC input current – requires less power to refillIC Protection for charging / overcharge / short circuit / dischargeBox Contents include USB Cable, 3 Adaptors, 30000mAh External Battery.