Is it normal that the batteries at rest are a little warm (the 3 batteries) ?? thanks

The batteries will start to discharge after a set period of time, the default period is 10 days. During this controlled discharge it is natural for the batteries to become warm.

Airobotix Posted at 2017-1-27 08:25
The batteries will start to discharge after a set period of time, the default period is 10 days. During this controlled discharge it is natural for the batteries to become warm.

Thank you I hope this is it I recharged the batteries and now it seems to be cold

if you are not using them for awhile it is best to leave them at the storage charge that they drain to. then charge them when you think you will be using them.