There is 18-month warranty High Capacity : Charges the iPhone 6 four times, the iPhone 6 Plus or Galaxy S6 two and a half times or the iPad Air almost once. Safely recharges with a 2 amp output charger (most phone chargers have 1 amp output) Fast Charging Technology : PowerIQ and VoltageBoost combine to produce the fastest possible charge up to 2. 4 amps per port or 3 amps overall Certified Safe : MultiProtect safety system ensures complete protection for you and your devices