On Monday, March 25, 2013 10:00:24 AM UTC-4, Andy wrote:

I made some measurements over the weekend. With 13.8 volts applied to

the portable the highest cell temperature I saw was 62 deg C. This

was immediately after removing the battery compartment cover. When

the cells were fully charged the temperature dropped to about 35 deg

C. Highest measured voltage across all cells was 9.2V but it was not

continuously monitored.



Cells were 2000mAh Lenmar. Probably not the highest quality cells

and not new. Temperature was measured with an uncalibrated IR spot

thermometer. Ambient temperature was about 25 deg C.

PF isn't getting the end of charge cutoff right. They need to fix that. My $0.02.

This may go better with better batteries (Sanyo 2500 mAH). But a fast charger must have peak charge detection and cut off and it must work reliably, else you are going to cook something.

Good luck.

T8