Bests & Worsts Reviews from Amazon

I purchased this JBL extreme a little over a year ago. Battery started to have issues where it wasnt holding its charge or fully charging after leaving it plugged in. I decided to open it up and found that the battery was not 10,000 but a 5,000 mah battery named Great power. Now i have to keep it plugged in just to listen to it. Make no mistake the sound is awesome, but battery isn't.