well after 5 cycles my zippy compact 5000 ml 5s 25c wont charge and 3 cells that are out of wack, tried to charge and discharge to no availe. im sure HK wont warranty them since that are over 30 days old, and even if they did they would want me to send it to Singapore which will cost more than its worth. HK asked me to send the pictures of the low cells but I doubt I will get a response, if they dont no more HK batteries from me.