Quote:
Originally Posted by kerry
I think 4x4 described what happened. What I've decided to do is as follows: Since I bought these two batteries at NAPA in the US a little over a year ago I should be able to get them replaced. So I bought one single 850CCA battery at Canadian Tire to use until I got home. I disconnected the dual battery setup and hooked the cables just to the new single battery. We'll see if that works.
I don't think I was getting high voltage to the batteries from the alternator since I never had a voltage reading higher than 14.5.
I don't see a huge advantage to the current dual battery system I have given the possibility of just this problem arising and having to replace two batteries at once. The engine is only a 3.9L diesel, there's no real reason to have two batteries apart from the fact that Fuso used to run these trucks on 24 volts and never reverted to a single battery when they changed to 12 volts.
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It will work. When it gets cold, it might have an issue. Diesel is harder to start in the cold and you have a huge draw when you glow the plugs. My MB runs on 1 battery. If your lights are left on or there is some other drain when the battery is fresh, probably you will be ok. If the battery gets older, maybe not.