LiFePO4 drop in's are they really a drop in?
I figured this might be interesting to those interested in drop-in replacement LIFEPO4 or the standalone cells themselves., based on the article below does not appear that is truly the case. Its a ...
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Note that what I’ve been referring to in my previous is charging with a ‘single stage’ PD Li charger...
So I did some more testing (as to my initial inquiry) and have these findings:
It now appears that the batt resting voltage is around 13.5v, though I’m not exactly sure what the trigger voltage is for the PD (??)... Whatever the PD trigger voltage, when the single stage PD charger kicks in, it puts out 14.4v which is enough pressure (voltage) to force the current into the Li for charging...Once the batt rises to about the 14.4v (charging voltage), the PD shuts down and then over a short period of time (?) the battery slowly drops to it’s resting voltage of about 13.5v...And this is true for the Zamp PWM solar charge controller (set to Li mode) as well...At least that is the best that I can determine, and this seems to make sense - thus, it appears that the BMS mostly guards against extreme operating parameters...JMHO
3 tons
So I did some more testing (as to my initial inquiry) and have these findings:
It now appears that the batt resting voltage is around 13.5v, though I’m not exactly sure what the trigger voltage is for the PD (??)... Whatever the PD trigger voltage, when the single stage PD charger kicks in, it puts out 14.4v which is enough pressure (voltage) to force the current into the Li for charging...Once the batt rises to about the 14.4v (charging voltage), the PD shuts down and then over a short period of time (?) the battery slowly drops to it’s resting voltage of about 13.5v...And this is true for the Zamp PWM solar charge controller (set to Li mode) as well...At least that is the best that I can determine, and this seems to make sense - thus, it appears that the BMS mostly guards against extreme operating parameters...JMHO
3 tons
