Measuring V loss during charging
I know that a discharged battery can pull down the voltage at the charger. I was trying to measure voltage loss in my converter wiring, switches, etc. The two 105 AH batteries were 12.13v prior to ...
Forum Discussion
Snowman9000 wrote:
So in my example, some part of the resistance is coming from the battery, right?
If there was no wiring resistance, would the charger and battery terminals read the same voltage, whatever it may be?
The voltage drop between the converter and the battery is entirely due to the resistance of the wiring between the two. The wiring consists of the wire, connections, fuses and the chassis.
Ohms law is a simple thing, voltage = current x resistance or E = I x R, R = E / I and I = E / R. So when the battery draws a lot of current, the charging voltage at the battery drops and as the battery charges, the voltage increases. Its all a function of the resistance in the circuit.
Reduce the resistance and you will get more voltage at the battery and thus faster charging.
