Leaf battery temp during charging ?

[DaveTM]

I don't recall seeing any post concerning what the temperature(s) of a leaf battery pack rise to during charging.

In previous charging to my leaf pack the ZEVA temp gauge usually shows about a 6 degree "hotter" than the ambient temperature at the time.

Yesterday I charged the pack while the temp was 88 degrees and at the end of charging the pack temp showed 94 degrees. Now, I placed my hand on top of the pack and it felt slightly warm.....but not excessively warm.

I think this is "normal" for the pack temp to rise above the room temp.....and I'm not alarmed about it, but I thought I'd toss out this subject should anyone else care to "toss in" their experiences of lithium charging details about heat.

[NCPW]

Mine does the same.

Temperatures are naturally going to go up while charging and also while being discharged.

[Clubcarguy34]

mine does the same. I also check mine after a few miles of a cart ride, and I’ve never felt the pack or the cables much warmer than the outside temp.

I suppose when charging it depends on how many amps you are charging at.

[samsonx]

It depends on the chemistry of the cell, but typically cell manufactures will list maximum temperature which is around 60-80degC (in my experience) before there is concern of thermal runaway. Not sure where the ZEVA temps sensors are located but I would give yourself some safety margin as the real cell temperature is likely above what is being reported.

[DaveTM]

I placed my ZEVA temp sensor in the middle of the 14 module pack.

I suppose if one of the module's were to get too hot, the ZEVA would not "know" this....but I still like the idea of a temp sensor.

A better option would be to have a sensor in-between each module.....but that wasn't possible with the ZEVA.