Monitoring battery capacity
What is available to get a true read on battery state. Running 2-GC2 batteries. The monitor panel isn't real helpful at showing condition with a green, yellow and red light. Don't want to pull them do...
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I do it by just monitoring the 12VDC power coming from the battery bank. My game plan is have enough battery capacity to operate all of the 120VAC Items we want to have from an Inverter and all of the 12VDC items we want to have direct connected to the battery bank. This is all planed to run my battery bank down to around its 50% charge state by 8AM the next morning when we are allowed to run our 2KW Generator to recharge the battery bank back up to its 90% charge state in a short three hour generator run time.
I monitor my battery DC voltage with my home made battery monitor panel but any DC VOLTS monitoring capability will work just fine. When my battery drops to around 12.0VDC which is around 50% charge state then I know its time to start re-charging my battery bank of quit using my batteries.
This chart is helpful showing the DC VOLTAGE verses the STATE OF CHARGE. It is not absolute but close enough for me to use. have been very successful the past five years camping off the power grid with my same 255AH capacity battery bank...
It does take some planning to be successful camping off the power grid
Roy ken
I monitor my battery DC voltage with my home made battery monitor panel but any DC VOLTS monitoring capability will work just fine. When my battery drops to around 12.0VDC which is around 50% charge state then I know its time to start re-charging my battery bank of quit using my batteries.
This chart is helpful showing the DC VOLTAGE verses the STATE OF CHARGE. It is not absolute but close enough for me to use. have been very successful the past five years camping off the power grid with my same 255AH capacity battery bank...
It does take some planning to be successful camping off the power grid
Roy ken
