On Monday, March 18, 2013 9:33:49 AM UTC-5, Andy wrote:
I am using NiMh rechargable cells in my PowerFLARM portable.

Yesterday, while charging, I noticed that the base of the case was hot

and I disconnected the unit immediately. When I opened the battery

compartment I found all cells were hot to the touch and that each was

about the same temperature.



I was more interested in preventing damage than recording the

temperature but estimate it to have being the region of 35-40 deg C.



When charging the same cells in a stand-alone charger they don't get

anything like this hot. Applied voltage was 13.8.



If you use rechargeables in your portable what peak cell temperatures

are you seeing during charging?



Andy

I thought for sure that I read somewhere that you were supposed to REMOVE internal batteries from the Portable when connecting to an external power source(?) .. It may be that it was never intended to "charge" batteries at all. That might explain the high temps.

Curt - 95