3400mAh Extended 533-000116, 533-000138 Replacement Battery Compatible with Logitech UE MegaBoom S-00147 Wireless Waterproof/Shockproof Bluetooth Speaker

Easy to instal works great

If your mega boom won't charge check out the YouTube videos on how to open the speaker properly (not like I did) and use this battery. Easy af to do and works like a charm. Not 1 issue with the product. Fyi it's a lil bigger (like less than 1mm) in diameter so when it's installed it's harder to get out than the other one because of friction.

Tools are not sturdy enough both broke while trying to replace the battery. The price for the battery was worth it.

Battery arrived no charged at all after charging got 100%, I have been using it for 2 days and still shows 60 % charged

I purchased this battery about 11 months ago and its worked perfectly until about a week ago. My speaker no longer turns on unless it’s plugged in which tells me that it won’t hold a charge anymore. This is exactly what originally happened to it before I replaced the battery with this one. I guess it’s a small price to pay every year to keep your speaker working like it’s supposed to, but it’s a shame that this battery didn’t last longer.Other than the lifespan of the battery, it held a better charge than the original one did. I rarely had to recharge it and I used it quite a bit. Installation was also very quick and easy. Just don’t use the stupid tools they give you. The plastic isn’t strong enough and mine snapped almost immediately. I carefully used a screwdriver instead and it worked perfectly.I’m thinking about repurchasing, however I’ll probably look elsewhere first since this one lasted less than a year. RIP (again) Megaboom.

All the tools broke and the battery cap came off in my fingers when I was inserting it into the speaker. Now I can’t get it out of the speaker and it won’t work as a replacement battery. I will try to get my money back but removing this junk from my speaker to return seems impossible.

The battery brought my old speaker back to life. Great price and easy install

Well the battery works but it doesn't hold a charge very well. Better than my last dead battery but certainly not as good as new. Would not recommend.