Looking for a low current disconnect.DrkAngel wrote:I recently reviewed a video that indicated that one type of battery deterioration was directly related to time spent charging.
It seems that the graphite becomes plated with lithium during the charge cycle.
Reducing the time spent charging, increasing amps, reduces the degree of plating per Ah of charge.
I will upgrade my 25.9V 5A charger to 10A. (25.9V 25.92Ah battery)
I will upgrade my 36V 4.5A charger to 10-15A. (33.3V 31.2Ah battery)
Li-ion (Laptop LiCo) are variously recommended at .5C-.8C charge rate
Much of the charging time is the low amperage "topping charge".
This, seems to be the most unproductive-damaging portion of the charge cycle.
By charging at 4.20V but disconnecting charger at 4.02V for my Sanyo 18650 packs and at 4.12V for my Lipo packs, I hope to more quickly attain optimal charged voltage while minimizing the reputably damaging, prolonged charge cycle.
By charging once to optimal voltage,
then applying 4.20V charge,
then noting charge amps ...
I can charge at 4.20V and disconnect when charging current diminishes to the predetermined amps.
Added Volt - Amp adjustment and meter to charger ...
damages battery less-prolongs life
and if not disconnected at optimal time, still limits battery voltage to the "safe" oem recommended voltage!
A "switch" that disconnects charge power as current reduces to a determined amps would be ideal!
In the meantime I have begun manually disconnecting charger as amps reduce to predetermined point.