BFL wrote:
You would normally leave the regular charger on at 14.8 (whatever)till the batts are "full" then do the overcharge at 15.x so amps per batt acceptance will be low then. You don't need to swap chargers earlier anymore now that the main charger will stay at the higher Vabs past that previous drop to 13.6 at 78% SOC. Assuming you do get that PM75 working the way you want. (end quote)
that's the whole problem. i may have to set the Vabs at ~ 14.2v (boost at 15.2v)... which is better than 13.6 Vabs, but still not a decent abs charge. but the 1620 can be set to 14.8v continuous, which would be faster, even though it's only 20 amp max... the trick will be finding out when to introduce the 1620 into the charge, in order to make the best of both chargers. in reality, the pm will function as a 75amper during boost (if boost works), and if boost doesn't work, as say a 40-60? amper during abs because of it's low Vabs.
