What charger should I use?
I have a class C MH with one coach battery under the hood opposite the chassis battery. Guess what? One is not enough to boondock with. I have a welder currently building me a tray to hold three deep ...
Forum Discussion
Looking at the thread again, Support the folks who say DO NOT BUY WFFCO made in china with typical china quality (Very high failure rate).
As to "Do I need a bigger converter"
NO. you do not.
However here is some math..
As i said a group 24 is 75 AH roughly (74-76 depending) so 30% of that (For most batteries 30% is the recommended MAXIMUM recharge rate) is 22.2 amps. So a 45 amp converter (About the smallest you can get) is max speed for a pair of Group 24's..
HOWEVER: Trojan says for best battery life use 10% of c/20, not 30. So that woudl be 15 amps for a pair of G-24's
(Lifeline AGM and only LIFELINE, says minimum 30% so if you go LIFELINE AGM, upgrade the converter)
Why the differences: Why Lifeline recommends such a fast charge I do not know.
But Trojan knows that for most Lead Acid batteries, the slower the re-charge the longer the battery lasts (In terms of years) so they sugest the slower rate.
Thus a smaller converter, provided it is a good 3-stage like a Progressive Dynamics 9245, will make the batteries last longer than a faster converter.
The 30% figure comes from Xantrex, they make chargers and inverters.
As to "Do I need a bigger converter"
NO. you do not.
However here is some math..
As i said a group 24 is 75 AH roughly (74-76 depending) so 30% of that (For most batteries 30% is the recommended MAXIMUM recharge rate) is 22.2 amps. So a 45 amp converter (About the smallest you can get) is max speed for a pair of Group 24's..
HOWEVER: Trojan says for best battery life use 10% of c/20, not 30. So that woudl be 15 amps for a pair of G-24's
(Lifeline AGM and only LIFELINE, says minimum 30% so if you go LIFELINE AGM, upgrade the converter)
Why the differences: Why Lifeline recommends such a fast charge I do not know.
But Trojan knows that for most Lead Acid batteries, the slower the re-charge the longer the battery lasts (In terms of years) so they sugest the slower rate.
Thus a smaller converter, provided it is a good 3-stage like a Progressive Dynamics 9245, will make the batteries last longer than a faster converter.
The 30% figure comes from Xantrex, they make chargers and inverters.
