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coolmom42's avatar
coolmom42
Explorer II
Oct 22, 2014

charging battery from generator---how long does it take?

In 2-3 years, I'm planning to convert a van to a minimalist RV, and estimate that I'll need about 100 amp-hours of power every couple of days, absolute max. (LED lighting, fan, water pump, charging e...
pianotuna's avatar
pianotuna
Nomad III
Oct 22, 2014
Hi Coolmom,

AGM are faster to charge and can accept current faster, but recharging any lead acid chemistry to 100% will still require MANY hours of generator run time. The trade off comes with lower total capacity. A group 27 is probably not going to be 100 amp-hours.

Mostly folks settle for 50% to 90%. If that takes say 3 hours, then getting from 90% to 97% will take an additional 3 hours. Probably 97% to 100% takes yet another 3 hours.

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