Forum Discussion
MrWizard
Nov 11, 2016Moderator
State of charge versus voltage
At 13.6v you may not have any amps into the house batteries
Yet if you bumped that up to 14.6 there would be amp flow
A solar controller, or an adjustable power supply with a 14+ voltage will top charge batteries that the alternator heat induced lower voltage does not
Unless the vehicle is hard to start very little power is actually expended from the battery, aka only a few percent capacity, and it quickly recovers before the alternator voltage drops to 13+ while the house batteries are still charging and need higher voltage
At 13.6v you may not have any amps into the house batteries
Yet if you bumped that up to 14.6 there would be amp flow
A solar controller, or an adjustable power supply with a 14+ voltage will top charge batteries that the alternator heat induced lower voltage does not
Unless the vehicle is hard to start very little power is actually expended from the battery, aka only a few percent capacity, and it quickly recovers before the alternator voltage drops to 13+ while the house batteries are still charging and need higher voltage
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