Battery for Samsung Gear S3 Frontier Battery 580mAh(SM-R760) 2026Upgrade High Capacity, Replacement Battery for SM-R770, BR760, R765 with Professional Repair Tool Kit

The battery life is fantastic! Much better than the original. This will last 3 days easily without charging versus the original getting a day to a day and a half. Careful though, you do have to be somewhat tech savvy to be able to replace this yourself.

Battery died in my S3 several years ago, I had just kinda thrown it in a desk drawer and forgot about it. Ran across it a few weeks ago. TL;DR is I decided to grab a batter and see if it would fix it. Took like 20 mins to change the battery out, worked immediately. Battery was full on delivery. Finished installing the battery 3 days ago, and the charge level as of today is 25%. So I guess it works. Included tools are fine. I couldnt get the back door off w/ just the little plastic guitar pick thingy, so I just used a razor blade really carefully to get it started a little, then finished with the pick. Problem solved. Just take your time disconnecting & reconnecting the leads once you get it open, not a whole lot to it. Bought this one because it was the cheapest I found. Mixed reviews so I guess YMMV, but the one I got seems good to go.

Easily installed this battery to replace the original 380mah battery which until recently, would keep a functioning charge for 3+ days. The original battery was old and suddenly would last ~6 hours. This new battery is supposed to be high capacity 580mAh. After installation, the watch displays the battery as a 380 mah battery, not 580mah. This new battery lasts 8 hours max! Faulty new battery or False product?

Perfect for keeping old watch running strong.

I do work similar to this. So I thought this would be easy no it's not. But after I got it in the battery worked great for two days. But when I went to recharge it it wouldn't take a charge I'm going to try buying a new charger. About my charger used to work

My Samsung Gear S3 Frontier had reached the point where the battery wasn't holding a charge well enough to make the watch very useful anymore. I really didn't want to replace an otherwise perfectly good watch just because the battery was worn out, so I decided to give this replacement a try. I'm glad I did because it basically resurrected my watch. Replacing the battery takes some patience since you have to open the watch and work around small internal components, but I appreciated that this kit includes the repair tools needed to help get the job done. I took my time rather than forcing anything, especially considering the age of the watch. Once everything was back together and charged, my old Gear S3 was usable again. That's exactly what I wanted from this purchase. I'm not concerned about whether the advertised 580mAh capacity magically makes my watch better than when it was new. What matters to me is that replacing the worn-out battery gave a watch I still like a new lease on life. Much cheaper than buying another smartwatch, and my Gear S3 lives to fight another day.

The battery lasts much longer than the original that came in the watch. the battery came with instructions for install and fit perfectly into my galaxy 3 Frontier. really good value to keep a older watch running

Works great Watch last for 3 days without a charge Installation was a challenge but doable. Used YouTube