thompsontech Report post Posted April 7, 2023 I bought a 2017 FFH with 13048,795 miles. The battery that was in it was 60ah lead. With 10 days using the FFH I started to receive messages informing that I was turning off the sound to save energy. Days later the battery died for good. I bought another new one of 60ah and to my frustration with 15 days of use I started to receive the alert again that I would turn off the sound to save the battery and days later the battery died again. I took it to some specialists and they scanned the car, out of several errors that showed the only one that remained was: B1165:15-2B - Left front running board light output signal. Could this error be causing a possible drain on my 12v battery? Has anyone ever experienced this? Is there any update that will fix this problem? Quote Share this post Link to post Share on other sites
MeeLee Report post Posted May 3, 2023 I've had the dame on my 4 year old battery. Turns out that 2 trips of 10 miles a day (about 20 miles, 40 minutes), isn't enough to charge the battery. I don't have any error codes, but I'd check with a multimeter to see battery voltage cold after just opening the trunk should be 12.7v or more. Voltage with car on should read 14.4V. Voltage after a long ride should be about 13.3v. In my case, I just plugged my battery in a battery tender (12V 4A), and charged it overnight, until I replaced the lead acid with a 12v 50A SLA Lithium battery. This works really well, however, I needed to manufacture a 2 way diode, to get a charge voltage of approx 13.9V, as the 14.4V would trigger the BMS, and prevent the battery from charging. Also, the sla would put out 13.35-13.85V, which was too much for the internal dome lights. They look better at 12.7-13.3V Quote Share this post Link to post Share on other sites
