โMar-17-2022 02:10 PM
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โMar-17-2022 08:40 PM
LittleBill wrote:
so my voltage drop only becomes a problem at 80% charge and not 20% charge? Yes at lower state of charge and even lower battery voltage the PD is not able to hold the voltage at 14.4 so the max amps flow.
my voltage drop is increased at the lower charge, why is it not affected there then? The voltage drop is fine until the PD hits the 14.4 limit and the amps start to taper.
the voltage drop is a sliding scale, shouldn't it be moving uniformly? As long as the PD is held lower than 14.4 volts the amps are at a fixed 45 maximum so everything is linear until the PD hits the 14.4 limit.
โMar-17-2022 07:36 PM
โMar-17-2022 07:28 PM
time2roll wrote:LittleBill wrote:The PD only holds voltage. The battery pulls amps. Once the PD is hitting 14.4 it is done increasing and the amps taper. The PD has no idea what is at the other end of the wire. Only way to push more amps is to increase the supply voltage but the supply is topped out at 14.4 volts. PD can only hold the voltage and wait for the battery to catch up.
my issue and my confusion, again is around 13.6v at the battery. PD is doing 14.4, but the amperage is going down around 20amps and still tapering, PD should be cranking the amperage up to get to 14, but its not doing it.
For fast charging the circuit voltage drop should be 200 mV or less at full current.
โMar-17-2022 07:26 PM
โMar-17-2022 07:25 PM
โMar-17-2022 07:21 PM
LittleBill wrote:The PD only holds voltage. The battery pulls amps. Once the PD is hitting 14.4 it is done increasing and the amps taper. The PD has no idea what is at the other end of the wire. Only way to push more amps is to increase the supply voltage but the supply is topped out at 14.4 volts. PD can only hold the voltage and wait for the battery to catch up.
my issue and my confusion, again is around 13.6v at the battery. PD is doing 14.4, but the amperage is going down around 20amps and still tapering, PD should be cranking the amperage up to get to 14, but its not doing it.
โMar-17-2022 07:08 PM
BFL13 wrote:
Battery R goes up with higher resting V SOC That makes amps taper with charger constant V
โMar-17-2022 07:07 PM
โMar-17-2022 07:06 PM