Video · DIY Builds & Mods
How to Power and Charge a GoPro Underwater for All Day Battery
I show how I get all day battery life from my GoPro underwater by running power into the waterproof housing from an external USB battery pack.
What’s in this video
Running out of GoPro battery halfway through a day on the water drove me nuts, so I modified my housing to take outside power. The three essential parts are a PG7 cable gland, a battery eliminator for the Hero 3 or 3+ (there is also a complete kit for the Hero 3+ and 4), and a USB battery pack. Marine Goop is optional for extra sealing around the gland.
I show the tools I used and how the parts go together so the camera stays in the waterproof housing while it runs off the battery pack. The full supply list with links is in the description.
Quick takeaways
- The core parts are a PG7 cable gland, a GoPro battery eliminator and a USB battery pack.
- Marine Goop around the cable gland adds extra sealing protection.
Gear from this video
Affiliate links: some of these links earn KayakDIY a commission at no extra cost to you. Links and codes are from the original video description, so prices and availability may have changed. Affiliate disclosure.
- Essential Item 1 (PG7 Cable Gland)
- Essential Item 2 (Battery Eliminator Hero 3/3+)
- OR….(Battery Eliminator/Housing Complete for Hero 3+/4)
- Amazon.com
- Amazon.com
- Amazon.com

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