When a cell is charging... is the "full charge " function activated by voltage impressed on the batt, or the temperature it has achieved... or does that depend on the monster in question....

I ask, because my new LG flip-phone, with bottom-of-the-line 950 mAh L-ion battery, holds up better on shorter frequent charges of one or two hours...

I have run it flat several times, and let it charge overnight, tho' at that, it seems to die quickly with moderate texting... I use no other data...

 

When a cell is charging... is the "full charge " function activated by voltage impressed on the batt, or the temperature it has achieved..

Generally speaking, the former --- The role of the temperature sensing circuitry/firmware is that of 'throttling' the charge rate to the end of preclusion of overheating and all the drama attendant thereto!

That said; some larger devices (i.e. 'notebooks' and certain power tools) are said to employ a 'hybrid' approach -- though I've not personally encountered same...

I ask, because my new LG flip-phone, with bottom-of-the-line 950 mAh L-ion battery, holds up better on shorter frequent charges of one or two hours...

Indeed the warmer the battery the less the 'electrical volume'...

Best regards
HP

 

Thanks HP... Your input makes perfect sense, given the L-ion tendency to overheat, and result in localized equipment damage, or more serious structure fires.
I find my little phone far more useful with the short-duration " boosts "
I am not a real fan of overnight charging... of any equipment...