Replacement Battery for Galaxy Watch 3 (45mm), EB-BR840ABY Battery Compatible with Samsung Galaxy Watch 3 45mm SM-R840 SM-R845, with Repair Tools & Instruction

Why did you pick this product vs others?:Good kit - the watch back has 'Y' screws instead of Phillip's heads. The instructions are crappy - watch YouTube's Samsung Watch 3 battery replacement by Joe's Gaming and Electronics...

The battery worked but the battery life is trash. If you are expecting this to replace your stock watch battery you will be severely disappointed. Without even playing on the watch or doing anything with it besides just wearing it, it wont even last 24 hours. I put it on in the morning, fully charged, and before I go to bed at night it is completely dead. This is on day 1 so hasnt even had a chance to degrade. Not worth buying.

I purchased a Samusing watch 3 about 2 years ago and completely forgot about it. Never removed from the packaging. When I opened and tried to charge it, it wasn't working. I called numerous places to try and get it looked at. After failing to find someone I decided to do it myself. The tool kit was delivered. Everything went without issues. The instructions are excellent. The tools are good unlike what other reviews state. My watch is in working condition and taking a charge. This is a great value for your money if you feel confident on doing it yourself. Highly recommend.

This kit made it pretty easy to change out my battery and get my watch put back together. I went from my not being able to use it at all because it couldn't hold a charge to only charging my watch every two or three days.

Battery life:Sucks

I went from not getting a full day out of my watch to 2 days with no charging. The original battery would go a little further but I am not complaining.

The battery came quickly, boxed with tools needed. The replacement itself it fairly straightforward and comes with instructions, and YouTube videos exist as well. My watch no longer overheats during charging.

So 1st off good. Easy to install instructions were dead on. They also send tools to do the repair but still after all that. The battery doesn't even last the 12 hours I work at my job. Sorry but I couldn't recommend this replacement to anyone. Was gonna buy 2 batteries for another watch. Not not now. Sorry.