 "GoPro Hero Extended Battery Pack 4000mAh Epic L40GH - NOT COMPATIBLE with 4, 3/3+" 4 3/3+ Limefuel"
"
		
Over 3.5x more juice than original battery.
Film upwards of 8 hours on a single charge.
4000mAh battery charges with included micro USB cable.
Protection against short circuit, anti-discharge protection, anti-overcurrent protection and anti-explosion protections.
Includes extended back housing, waterproof up to 40 meters
Compatible with HERO (2014) entry-level camera only. NOT COMPATIBLE with Hero+, Hero+ LCD, Hero (2010), Hero 2, Hero 3/3+ or Hero 4 cameras.

	" 
 "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" 