View Single Post
Old 03-18-2023, 10:58 AM   #1
Kirk's Keystone Outback.
Senior Member
 
Kirk's Keystone Outback.'s Avatar
 
Join Date: Jun 2022
Location: West Coast Florida
Posts: 243
TV Charging Battery

I have a 2013 F150 and a 2020 F250, both with the factory tow package. On several occasions I noticed that when I connect the TT umbilical cord to either truck, I don’t see a rise in battery voltage when the vehicle is running. I only started looking more closely after I connected a volt meter on the front of trailer.
Is it true that the tow vehicle is supposed to trickle charge the battery? If so, how can I prove it’s actually charging the battery? After performing a quick test today, I saw no rise in battery voltage with truck running.
Usually the trailer is connected to shore power while parked at home and reads 13.8, and holds between 12.8 and 13 vdc when unplugged.
Thanks in advance for any clarification.
__________________
2018 Outback 299URL
2020 F250 FX4 6.2L 4.30 AR
Equal-i-zer 10K WDH
Kirk's Keystone Outback. is offline   Reply With Quote