Strange chassis battery behavior...
About 3 years ago, I had an incident where the chassis battery discharged for no apparent reason on our '00 Four Winds/Ford E350- no lights were left on, doors closed, ign in lock, etc. The battery w...
Forum Discussion
BruceMc wrote:
MXW, I keep a maintenance charger on the chassis battery during storage. Can you suggest why it went flat a couple days after the 11 day 2200 mile trip? I maintain there are no loads on it other than the ECM and radio memory. (Unless this is another ford "issue" - it randomly runs the battery flat in two days... )
I had never seen a battery rest at 13.5 volts, hence my "convoluted" diagnosis. I'd like your technical opinion on what you would do at this point.
A COMMON problem with a Ford chassis is this---The Dimmer wheel or indent for the non existent dome light on some chassis will still engage a relay and the ONLY indication is a dead battery after a few days. A Draw test at the battery will show this draw, but it is difficult to run down if you are not looking for it. Once a Starting battery goes completely dead a few times, it is useless. The plates in chassis type batteries do not function well after a complete dead discharge. Doug
