by planet4ever (Posted Fri, 21 Jun 2013 13:38:25 GMT)
Ray
DaveinOlyWA wrote:
**disclaimer; not an engineer**
i think voltage input is static and only current varies depending on the perceived SOC of the vehicle.
I'm not an engineer either, Dave, but that can't be right. I've read many times here that the battery is charged in two phases, first gradually increasing the voltage so that the current is constant, then holding a constant voltage for the top off and letting the current drop. Since E=IR, this isn't really based on the "perceived SOC", but on the resistance of the battery at any point of time. My (perhaps simplistic) view is that the external charger doesn't try to control the current. It just provides the voltage that the LBC asks for, and the LBC specifies a voltage that will result in the current it would like to see.i think voltage input is static and only current varies depending on the perceived SOC of the vehicle.
Ray