It may be that one or another charger is broken ... But mine invites good and reliable my batteries ... Sure, the batteries and the charger heat (a little more than lukewarm) ... so let them cool down before continuing ... man ... As Much time has to be ... The people have no idea about technology ... writes no scrap purely ... price-performance is wonderful .... The short battery cables ... yes ... true ... could have been longer ... but you knew that in advance, when you see the device in the pictures ...