PD4655 Charging Graph
I have been reading quite a bit about different converters and charge rates, specifically some claims that PD's seem to drop off earlier than other brands. That is not what I have noticed on my setup,...
Forum Discussion
mena661 wrote:
You seem to think AGMs are some mystical battery ...
Nope on the mysticism.
All I know or care about regarding (my) AGM RV batteries is:
1) They don't require any maintenance - they just sit there, shut up, and do their job year after year.
2) They have less internal resistance - so they absorb more charge current under any applied charging voltage.
3) They require a float voltage of 13.5 to 13.8 volts, so when switching to them I could keep right on using my good old 13.8 volt fixed voltage converter instead of spending the additional $$ for a multi-stage charger retrofit to my RV.
By the way, for fastest charging (which I don't care about), my AGM batteries can take per their label, and if one desires, 14.4 to 14.8 volts. I call this "14.XX volts" - what my alternator output is for awhile when starting out down the road before it's voltage starts to slowly decline ... I assume most/all motorhome alternators are supposed to act this way (kindof like an infinite-stage charger).
