GoPro Hero 3 and Hero 3+ Extended Battery Pack 5500mAh (Limefuel Epic L55G3) Replacement Battery for GoPro Hero3, Hero3+, Replaces GoPro Battery BacPac, AHDBT-201, AHDBT-301, AHDBT-302 Includes 2 Extended Backdoor Housings up to 40 and 60 Meters

We created the L55G3 battery to be the only GoPro battery you need. At 5500mAh, the L55G3 will power your HERO 3/3+for up to 12 hours on a single charge! The L55G3 easily fits into the GoPro HERO 3/3+, extending battery life by more than 4 times. The Epic L55G3 will include 2 waterproof extended back housings (safe to 131ft/40m and 197ft/60m) to keep both battery and camera secure while filming. Filming time depends on the GoPro camera video type and card capacity.