landyacht318 wrote:
I'd expect 2 50 percent depleted group 24's at ~8-AH capacity to be able to suck 25+ amps each initially for at least 20 minutes before battery voltage approached 14.4v and amps begin to taper.
Just guessing here but you may not OBSERVE 14.4 at the batteries while the charging rate is really high.
For your charted test run to be really meaningful you need another column showing observed voltage at each of those time marks.
And like someone else said, you need to let it run longer. The peak boost voltage may not be reached until the end of the 2 hour cycle.....or maybe even longer if they are really dead to start with.
