9Hr Extended Battery Module for GoPro Hero 13/12/11/10/9 IP68 Waterproof 33FT Dustproof Rechargeable Pass Through Power Bank Backup Housing Frame Case with Built-in Charging Battery for GoPro

These little units (I bought two) have been incredible. Dead simple to use, bulletproof, and offers HOURS of trouble free recording and charging for the GoPro, which is great because I mount them externally and cannot effectively switch them on and off. I highly recommend these units.

It's a great product!. I wish it could last at least 8h-10h max for time lapse shooting for in gopro.

The Refuel Action Pack Extended Battery looks great on paper. Unfortunately, its mechanical design is bad. It simply isn't designed for bike road and trail riding. Where the bike mount slips into the Refuel case, it is so flimsy that it broke after about 10 bike rides. If the case and GoPro weren't mounted to its bike mount and thus took its weight and momentum load of the mount, it would probably be okay; however, that's not how us bikers use the Refuel. We use it to ride with the GoPro.Another weak link is in its case. It cleverly swivels at the top by lifting a tab. The mechanism is again too flimsy. After about 4 rides, I lifted the latch to take the GoPro out and download files. As I was lifting it, the latch broke where it swivels. For a while, I used a rubber band to keep the swivel arm down. I'm not looking for waterproof, so it was a temporary fix until I located something else. But it looked mighty cheap to the other bikers who saw it and bike with GoPros. Both they and I pronounced the Refuel is a clever concept but pile of junk. It's too bad for a product that is a clever design on paper but totally useless after 10 bike rides.

I am currently learning how to make videos and because of that, I wanted to get an external battery pack. I did some control testing to make sure it fits my purpose.My equipment:GoPro Hero 5 BlackGorillapod256GB Micro SDI ran a gauntlet of tests using 4K and 1080P for videos and time-lapse. These were all continuous shooting situations, and your mileage may vary if you shoot at different locations. My results were:1) Stock battery* 4K video or time lapse: 75-80 minutes* 1080P video or time lapse: 85-100 minutes2) Battery pack* 4K Video: 6-7hrs* 1080P video: 8-9 hrs* 4K or 1080P time lapse: 9hrs plus or minus 15 minutesI then took it camping and did a time-lapse to record the sunrise. I set a timer on my iPhone to see how long I left the camera on. I made sure the stock battery was 100% before I inserted it into the GoPro.I checked on the camera after 9hrs and 15 minutes; the battery pack had 1 light blinking, and my internal battery was at 85%. I would say that for time-lapse the longest I would expect this to last is 10 hours. I like to leave a margin for error of about 15-20 minutes.One last thing I tested is the claim that it is water resistant. I took some videos of the rain and the camera got very wet. this is not light splashing. it got rained on. Thankfully my GoPro and the battery pack were still operable. There is a good seal formed at the USB-C plug that goes into the GoPro.Overall I am very satisfied with this product and would highly recommend it.

Review on updated version of product.It appears that the mounting solution on this camera has changed over time. Looking at some of the other reviewers pictures and the design of that mount and the bottom of the case. There is a small notch on the older camera style and the mounting solution looks more like a rail. While the new case has no notch and the mounting solutions is secured with two screws.I hope this means that the design has been upgraded in order to cut back on the amount of breaks that has been seen, but time will tell. At this time the product is working as advertised. If it breaks during use I will update this review.Several people have given bad reviews on this product and simply don't know what they are doing and failed to read the instructions. So allow me to go over some common mistakes people are making.A quick press on the Re-Fuel power button will display its charge level, but this will NOT turn the unit on and allow it to begin transferring power to the go pro. A LONG press is required to turn the Re-Fuel on and a LONG press is required to turn if off again.A note on the OLD design. Several people are inserting the thumb screw in the wrong direction and then complaining about the mount not working. You have it backwards. You can't insert it the wrong way on the new model.I strongly advise that you use this for handheld camming or as a dash camera in a vehicle only. I don't believe the newer design will hold up well to vibrations on motorized vehicles such as but not limited too four wheelers, snow mobiles, dirt bikes or gasoline powered motorcycles. These will simply wear down the mounting points quickly.If you have access to a machine shop and wish to use this product for more extreme settings I advise that you have the T-shaped mount that attaches to the bottom of the Re-Fuel replaced with an aluminum one. As that is by far the weakest point on the product, even after they redesigned it. Had the spent the extra money on making this one piece metal, many of these would have never broke.

I have nine of these, and am getting ready to order a backup. they are used when I video dog competitions - rain, shine, cold, or hot. I no longer have to worry about battery backups being strapped to camera stands and making sure my cables are there too; or about being able to film outside in rain (or snow).I do agree that the latch on top is weak, but contact the company and they work with you.and yes, they are sturdy. I've had tripods knocked over by wind and people. these have fallen from as high up as 6' onto concrete, slate, tile, wood, gravel, and grass, and still work fine.