Keeping a charge on AGM batteries

If they are AGM then they need a correct charger. I have one vehicle that has it and it stays on the charger 24/7 if not on the road. I use a Cteck brand. My OEM lasted 9 years doing this. As stated every time you take them off they start over, just not as long as if they not been on in a while.

https://smartercharger.com/

theoldwizard1 wrote:
IMHO I don't like to leave ANY type of battery hooked to ANY type of charger for more than a couple of days. Use a charger designed for AGM batteries but connect it to an inexpensive mechanical lamp timer and on!y let it run 4 to 8 hours per day.

Trouble with doing it that way is that everytime the charger starts up again it is likely going to start with the Bulk charge phase, which is hard on batteries when repeated unnecessarily. Leaving charger on nonstop, as long as it is staying at a proper ~13.5 Float level is best. IMHO

IMHO I don't like to leave ANY type of battery hooked to ANY type of charger for more than a couple of days. Use a charger designed for AGM batteries but connect it to an inexpensive mechanical lamp timer and on!y let it run 4 to 8 hours per day.

jorbill2or wrote:
As long as the charger has the ability and is set to the correct AGM profile they will be fine. Did you adjust the charger or double check it’s settings ?

I bought the RV unaware it had AGM batteries. I'll take a look at the converter. Thanks.

As long as the charger has the ability and is set to the correct AGM profile they will be fine. Did you adjust the charger or double check it’s settings ?