BFL13 wrote:
The ratio of battery capacity in AH wrt the charging current in the bulk stage determines when tapering starts at any Vabs. The higher the current the sooner at a lower SOC tapering will start. If the current is too high battery voltage will spike so that tapering will start right away and you get no constant current stage.
That makes lots of sense. Thanks for the explanation. I now have a DC clamp ammeter and hope to do some tests comparing charging on the gen versus the mains and varying the voltage setpoint. Your comments should help me understand the results.