Is 24v Charging the Same as 12v Charging?
With 24v charging on a 24v battery is everything the same as 12s except half the amps? Same charging profile, SOC vs time etc? Is 8.3 amps with 24v the same exactly as 16.6 amps on a 12v bank of the...
Forum Discussion
2oldman wrote:
Watts makes it easy to compare systems. Yes, 24v charging is half the amps.
So when panel temps get high and the voltage and power drops but the Isc goes up, do you think you are missing a trick by using an MPPT at 24v instead of PWM and Isc at 24v on your 24v bank?
Ever measured either way?
Of course it means nothing when the MPPT controller goes PWM. We are talking about the buck converter here actually, which is always in place except in "PWM controllers" that don't have one.
So a buck converter type controller is vulnerable to a hot panel, but a PWM controller could care less about panel heat. It just keeps getting Isc no matter what.
