Ed_Gee wrote:
You overlook the substantially lower internal resistance of the AGM battery. The charging process is essentially the conversion of electrons ( current ) back into chemical storage. In a wet cell much of the current is wasted as heat due to that higher resistance. In an AGM less heat and faster conversion process.
That seems legit. However, the heat does not really get going until you are over 80% SOC, so you won't notice any time saving doing a 50-80.
I just did a measured recharge on my AGMs with a 75 amper on 400AH of "ordinary" AGMs, and amps started to taper at 72.5% SOC. Same as with Floodeds at that charging rate.
It all sounds good, but I have done it both ways several times, measuring, and can't tell any difference in speed of a recharge.
