 "GoPro Battery BacPac (Camera Not Included)" "Pedometers - Page 3 | All Fitness Gadgets"
"The Battery BacPac is a removable battery pack that seamlessly attaches to the back of your GoPro to increase battery life. Now featuring 15% more battery capacity than the previous model, it's perfect for all-day adventures, marathon surf sessions or any application where you need extended battery life. Itâ€™s also ideal for activities where charging or swapping in a fresh battery is difficult, like scuba diving and overnight backpacking. You can charge it with any standard USB charger, the GoPro Auto or Wall Charger,1 or a computer.2" 
 "Panasonic VW-VBK360 Li-Ion Battery Pack"@en-US "Accessories - Page 966 | EISF"@en-US
"LI ION Battery Pack for select Panasonic Models"@en-US 