Please help i have a 24v 4x4 truck i got a 12v two batterys wich is 24v at the moment and just got a 250w 39v solar panel what regular do i need
RV
Collapse
X
-
-
Hello tommy123 and welcome to Solar Panel Talk
Without knowing the Ah rating of those batteries or the Vmp & Imp rating of that 250watt panel it would be hard to say what the best solution for a "regular" or charge controller.
If that panel Vmp rating is around 34v then the Imp would be around 7.5 amps so your batteries may be too big for a single 250watt panel to charge. -
First thing you need is a Electronic Battery Isolator, With that chances are you have no need for solar. Your engine alternator can generate more power in 30 minutes than a 250 watt panel can generate in several days.
A good Isolator will cost you less than $75, and good MPPT charge controller around $200.MSEE, PEComment
Comment