Confusion on battery charging
I am confused about the best practices for charging batteries. For 7 years I had 300 AH of Lifeline AGM batteries, 270 watts of solar and a simple charging system. My old camper has a 110 volt c...
Forum Discussion
BFL13 wrote:
If the 2.9 is the amps from solar, and the fridge is at 2.2, then your batteries were accepting 0.7a
Yes, and this was at 4.30 pm, and controller still wanted to stay in Absorb - because the timer restarted several times, last time it was (apparently) less than 2 hours ago. Batteries are full, but controller is still trying to boil it at 14.3.
GET A BETTER CONTROLLER. You need Absorb time to be self-adjusting.
I would't be comfortable with raising Float to 14.3 and doing Absorb in Float (to avoid all these dropping off and restarting timer again). Float should be - well, nobody knows exactly where, but it should be where it should be :). Depending on somebody's particular use, optimal Float might differ by 0.1.-0.2V from where the factory says it should be, though I doubt it should be as high as 14.x.
It's also nice to have all setpoints to be easily manipulated, ex. making Float voltage a little higher or lower on some days if you feel this is necessary, why not.
