SUNYEE Mini Ultra Compact Portable Charger 2600mAh External Battery Backup Power Bank. Small Size, High Capacity, Fast Charging for Apple iPhones & Samsung Galaxy (Green) The world's smallest external rechargeable battery; Fits easily into any bag or pocket; Compact, portable & stylish design; Easily fits into your bag to provide instant power; PERFECT for long flights, road trips, or whenever you need to charge your mobile devices wherever you are. High Capacity, 2600mAh rechargeable power capacity with 1A output. Add 10 extra hours of talk time or 1 full charges to your iPhones; 100% extra battery life for most mobile phones. Premium aluminum case; Secured battery safety with 4 layers of smart safety protection circuit; Advanced power lock technology with standby time up to 6 months after fully charged. 500+ recharge cycles over the life of the battery. Products of Sunyee and sold by Exfactory Solutions.