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[ducksface]

Originally Posted by halfprice

Will our stock convertor charger properly charge agm batteries??

If seen some that have an agm setting you can select but my stock one doesn't have this feature

Jerry

Here's all I know:
Absorption rate on an AGM is about a volt higher on AGM vs wet and the float is up to 1/2 a volt more.

So, absorption being higher, the agm has a a cushion when using a standard charger and is the same or cushioned once charged.

Our little 45amp charger isn't going to overrun an agm (gas absorption) but a 150amp charger might. Ours might not be research lab amperage perfection, but I'll need to know the downside as percentage of loss before I commit to there being a difference other than theoretical as it would apply to our rv use. My GUESS is ambient temperature plays as big or bigger a part than does an amp charge on the low end of things like our converter is.

If you can find a straight, no boolcrap, we're not selling anything, real reason an agm can't be charged on a low output charger, I'd like to read it. No one has ever told me if differences in manufacture, specific gravity, temperature, lead content, make these slight voltage differences just guidelines or absolutes.
Something like: 'battery life is diminished in an agm by 2% when using a standard modern nonhigh amp charger' would suffice.

I've always heard not to, but the facts don't stacks.

I know the 200amp alternator on my truck doesn't know agm from wet cell. I don't know how the agm life is diminished by our little converters that an alternator wouldn't.