Yes, the voltage on each end of the wires between charger and battery is the same except for voltage drop. However, the charger is at 14.8 and the battery is just getting up from that 12.1 it was at the start.
The battery voltage appears to "spike" to 13.x, but that is just the voltage "middle-ing" between the two voltages. The charger is still at full power.
Here is what happens again:
55 amp charger not on battery, start charger, set it to 14.8v, and meter shows 14.8v at the charger's terminals. Battery is at 12.2, say.
Connect charger to battery--Kill-A-Watt between charger and 120v power supply. (Honda gen 127v no load--less with charger as load)
124.7v, 11.06 amps ( both AC) 980 watts, 1383VA PF 0.70 Charger DC amps 56.8a (what the battery is taking in as seen by Trimetric), battery voltage (and charger terminals too) showing 13.7v
So the 55 amper is doing full power at its 14.8v setting as seen by the VA it requires. If it were at a lower voltage it would not be sucking anywhere near that much power from the gen. That is why guys with Honda 1000s have to dial down their converters to 13.8 at first so it will not conk out the gen, until the battery comes up to the point where they can hit the Charge Wizard to go 14.4. By then the battery doesn't accept so many amps at 14.4 so it can now run on the 1000.
If you immediately disconnect the charger from the battery you will get 14.8v at the charger and still 12.2 at the battery (if you kill off the surface charge)
Too much confusion
