hi. i am new to solar and. hit a wrinkle that i hope is something simple/obvious i might have overlooked.
Using 2 solar panels 12v. i measured the output of ea. and was getting about 15v. I hooked them up in series and measured 30v. thought i was good.
plugged it into my Victron Energy SmartSolar MPPT 75V 15 amp controller, and measured across. the terminals and got about 12.5v. the bluetooth app showed same.
so i unplugged the solar panel measured across it again. 30v. so it seems once i plug it into the controller the pv terminals show 12.5. I measured the battery. and load terminals. got about 12v using it w/a 12v battery which for testing i did. disconnect and i had no load connected just a volt meter.
any ideas. why the controller isn't sending power to charge the battery w/30v from the solar. should be enough to activate the charge ckt, but. dunno why. i am not measuring 30v at the pv terminals when i plug it in
anyone have any ideas what i did wrong?