David,
Here's my comments from another thread of yours - that may be relevant here too:
"As usual, the one thing missing is that the termination of the charger's voltage control loop is not right at the terminals of the battery(ies) being charged.
What I want is a battery charging setup in which whenever I dial in 14.4volts (or whatever volts) using knobs/buttons on the charger ... that's exactly what winds up on the battery(ies) terminals regardless of the size of the wire running between the charger and the battery(ies). Of course this requres a charger also with knobs/buttons to set maximum current so as to not burn up the wiring and not to exceed the current capability of the charger.
The reason for the above is that I'm pretty sure that when battery manufacturers specify charging voltages, the voltage they're referring to is voltage being maintained on the battery terminals - not voltage at the charger. It takes a separate wire feeding back from right on the battery terminals to the control circuits in the charger to do this."
