Tow vehicle charging RV batteries
How slow is it? Is there a mod you can do to make it charge quicker? I was watching a video where some ppl that like to boondock said the alternator doesn't charge the batteries on your RV very qui...
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BarabooBob wrote:
I added a 6 gauge wire from the alternator to the TT battery. I did install a circuit breaker on each end to avoid problems. My voltage meter in the TT definitely shows and improvement over the charge line on the 7 pin TT plug.
Try this test. Run your TT battery down to about 75% SOC (12.4V with no load). Start your tow vehicle and immediately check the battery voltage using a meter. As quickly as possible, check the voltage at TT battery. Drive for about 10-20 minutes and repeat the two measurement with the engine running. Check also at high idle.
You will be surprised how low the voltage at the TT battery is !
