BlackBerry JM-1 1230mAh Standard BatteryKeeping an extra battery charged and handy is always a good plan. Through long flights, meetings, and even power blackouts, the BlackBerry Battery is designed specifically for most BlackBerry and it gives you the power to keep communicating.
TYLT Energi+ Backpack w/ Built-in 10,400mAh BatteryThe removable 10,400mAh rechargeable Lithium Ion battery provides up to 4 full smartphone charges or 1 full tablet charge. With over 1,450 cubic inches of internal space and 13 total pockets
Ghostek 7000mAh NRGbag Energy Water Resistant BackpackNRGbag Energy Water Resistant Backpack. Most mobile devices can be recharged with this built-in battery system. It is adaptable for either Micro-USB or Apple products with a USB2.0port.