Swiss Fone Power Bank 4000 mAh Black SB44000-B

The 4000 is a compact backup battery that extends the life of your average smartphone by 3 times. Perfect for the commute or day trip.Its smart higher-efficiency integrated circuit detects the device and optimises the charge for maximum speed. This allows the Power Pack to recharge twice as fast as well.The 4th generation Swiss Mobility Power Packs are engineered with multiple safety controls to not only the Power Pack itself, but the device as well. These Power Packs combine elegant design with the most durable materials to ensure they do not only look good, but also are built to last.Made with high-grade fire resistant plastic enclosure, a puncture resistant aluminium shield and passing the 1.2 m drop-test, this Power Pack is the ultimate universal battery pack for any place, any time.All Swiss Mobility's Power Packs come pre-charged and ready for smartphone charging and are compatible with both lightning and micro-USB devices.