These working amazing! They charge fast and hold a charge. You can also charge them while playing. I had also seen a post saying there wasn't a back for once the battery was in but our set came with multiple different kinds of battery covers. We have been using them daily for over a month now and they are still charging properly and holding their charge. I had an expensive charging dock and it never worked this good or held a charge this long.

It's been like 2 weeks now this works great I read all the 1-star comments and I was kinda scared but everything worked out fine I haven't even used my second battery yet I'm still on the first one this is a great product I recommend.

Bought these since my kids were going through a ton of batteries and it was a good investment. The batteries last a long time between charges. I wish the pack came with two USB chargers, but you only get one. It's just a micro USB charger and they're easy to get, so it's not that big of a deal. Overall, I'm impressed with the battery life and the quick charging time.

As soon as got the product i charged the batteries until the light turned green. I then plugged them into my controllers and have been playing my Xbox one for three days and still have not had to charge them. The only thing I would change is it should come with two cords instead of one. But over all very nice product.

The charging kits comes in a nice package. The setup for charging the batteries is easy and straight forward. We were able to get 2-3 hours of game play out of each charge. I haven't found anything negative about these. I would recommend this charging kit.