Portable Power Bank External Backup Battery Charger With Key Chain- comes with a rechargeable Lithium-ion battery with a capacity of 2600mAh. It can be used as a quick booster for your smart phone's dying battery so that you can stay connected. The battery can handle up to 500 charge cycles, making it a long-lasting power bank. This power bank is designed to be used with your smartphone, MP3 and MP4 player, tablets and other portable devices.
