Replacement Battery for Logitech UE MegaBoom Ultimate Ears MEGABOOM 3 984-001362 084-000845 S-00147 S-00171, fits Part No 533-000116, 533-000138 533-000146,7.4V Li-ion 3400mAh/25.16Wh

I have an older mega boom three and this battery works perfectly. It charges fast and so far has a long life. I have been using it for a couple weeks

Funciona bastante bien pero si capacidad solo dura Aprox 4 hrs

Came with just one pry plastic bar that had already been used, Followed the video but could only get it have off using many small flat screw drivers etc. I suspect the manufacturer never intended for you to replace the initial battery,Unless you are a bit magical, do not try this at home.

Amazing battery

The battery successfully revied my Megaboom, but it was short lived as the battery last for more than a 4 hours when new and died at the 1 year mark. I'd avoid and try a different brand.

Feeling rather discouraged with his battery and because it doesn’t hold a charge as long as the new system that I purchased which has the same battery size. There is a factor shelflife for lithium batteries and I don’t know when this was manufactured but I think it was more than 3 to 5 years ago, could be a lot more…Find another source if you need the size battery

Tool bent instantly and was garbage. Paid extra money for it. Battery was a fit charged and used it with no problems. Went back like two months later to use the speaker and battery was dead. I would not buy