by 
The rechargeable batteries inside Gum++ and Tanks are both 6000mAh cells, middle of the road by today’s standards: battery cases typically start at 1500 to 1800mAh, roughly enough to recharge an iPod, while huge standalone batteries tap out at around 12000mAh, or enough to nearly refuel current full-sized iPads. Just Mobile and SwitchEasy therefore picked a capacity that iPod and iPhone users will find ideal—enough for at least two full…
