Keeping the Battery cool for better charging / discharging performance

[James3]

In that thread:

Battery State Oscillating Ubuntu 23.04

Hey there! So today I noticed that while laptop was charging, it would hit a certain battery percentage, and then constantly start and stop charging several times. It would eventually get past that charge, and continue charging as normal. The most egregious example was: Charging to 29% → cycle between charge/discharge a few times → Charge to 39% → cycle → Charge to 49% → Cycle → Stuck on 50% cycling for an hour. I’m not 100% certain why this is happening, or what exactly I can investiagte. H…

The mention of “cycle” is and was an EC source code bug.
I explain it over here:

[TRACKING] Battery flipping between charging and discharging / Draws from battery even on AC

I have found what I think is the problem in the EC code. Its the function: sustain_switch_mode(enum ec_charge_control_mode mode) It is broken logic in my opinion. The problem is related to the decision points and state changes around the “sustain_soc.upper” point. It seems to ignore the fact that “int soc = charge_get_display_charge() / 10;” does not return a constant value when the battery re-calibrates itself. The value returned will shift up and down slightly over time, thus randomly pu…

I have a version of the EC source code that completely fixed the charge/discharge cycles.
FW have also been working on this, so it will improve at some point.

I am going to put instructions together, so others can safely experiment with my code on their EC.

But, regarding battery temp.
If the battery has fallen to a “Desired Current” of 783 mA, I would have liked to see what the battery temp was at the time.