Battery observations
I have 2 6V Sams Club GC batteries in my MH that are 13 years old. I went to charge them a month ago with my "smart charger" and it would not charge due to a sulfated cell(F2). So I figured it was tim...
Forum Discussion
Gjac wrote:theoldwizard1 wrote:They are still holding at 12.6 v after a week with no charger. I don't think the "smart charger" fully charges them. I notice I get a few more days of dry camping when I use the Magnatech charger to float the batteries for a few days before camping after the B&D says FUL. Also I think my 180 amp alternator pumps more amps in after my B&D says FUL. I don't know if anyone else has noticed this about their smart chargers?Gjac wrote:
I was thinking after 13 years these batteries lost a lot of capacity and figured I would have to use the genset to recharge during the week, (as) I only dry camp. I don't watch TV, no internet or cell phone service where we camp so just lights, WP, refer and WH usage.
...but the 5 hr drive home seemed to fully charge the batteries.
They likely NEVER got fully recharged. You should put them back on your smart charger and get them as close as possible to 100%.
The Vector/B&D chargers get them to about 97% SOC and say FUL. Their manual says you then set it to the low amp setting (2 or 4 depending on model) and run it again till it says FUL. Now you will be closer to true full. Of course you can tell with your hydrometer what the truth is.
With my 6s (same with 12v 27s) and the VEC1093DBD I just set it to the 4amp and push Equalize (flashing green light). It brings them to what would be FUL at 14.8, then it switches by itself to Equalize at 15.7 and does that till it says FUL. Hydrometer shows that they are now actually full.
Love my 1093! :) Best thing is you can leave it to do all that overnight by itself and check the SG in the morning. You don't have to be there keeping an eye on progress.
