Anyone know whymy 12 v brake battery only reads 7 volts on my meter?
Sent from my SCH-I545 using Tapatalk 2
Late reply.... but just in case you haven’t figured out the issue yet, I have come across quite a few trailers that were wired in a way that the breakaway battery only charged while the trailer brakes were actually applied. Seems odd to me, but I guess the battery is only needed for a few seconds when things go bad. Just hope that it’s not early in a trip and you have been on the brakes lots...