Forum Discussion
BFL13
Jun 22, 2017Explorer II
PWM controllers don't care about power as such. So some power loss between panel and controller doesn't matter to how many amps you are charging with. There is no Vmp or Imp with PWM. With PWM you can get away with long wires from controller to panel, but not from controller to battery.
Power matters with MPPT with their buck converters as how they do the amps to battery so now line loss between controller and panel matters- to keep input power up--but if your voltage there is 24 vs 12 you can use thinner wire of course. If it is MPPT and 12-12 you need fatter wire there too.
Both types of controller are affected by line loss between controller and battery.
BTW, WFCO does four hours max at its 14.4 (if you can get it to do 14.4 at all)
Power matters with MPPT with their buck converters as how they do the amps to battery so now line loss between controller and panel matters- to keep input power up--but if your voltage there is 24 vs 12 you can use thinner wire of course. If it is MPPT and 12-12 you need fatter wire there too.
Both types of controller are affected by line loss between controller and battery.
BTW, WFCO does four hours max at its 14.4 (if you can get it to do 14.4 at all)
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