PeterBKrogh
New member
- Joined
- May 29, 2019
- Posts
- 1
Hey Everyone!
So over the last week or two my coach battery has slowly gotten worse and doesn't hold much of a charge anymore. Which is to be expected since it's 6 years old and I've been using it a lot lately.
This weekend I bought a new AGM battery and hooked it up. My interior panel showed 3/4 charge and I walked away, thinking that was that. Then yesterday when I went back to the coach for the first time since I hooked it up, it was DEAD. Not a flicker from an interior light. It occurred to me when I hooked it up that I put it in the wrong way. The coach builder, in their helpful wisdom, decided it wasn't necessary to mark the leads. Here is what I've got:
- Three black cables that go to one post.
- A single white cable that goes to the other post.
With only that to go by, which would you guess is positive, and which negative?
Yes, I could take the battery out and flip it around, but (a) that's hard. It weighs 50 lbs. and you lose finger skin getting it in the box, and (b) if it's in the right way and I messed something up, I don't want to make it worse by putting it in the wrong way. Yeah, I checked all the circuit breakers and nothing got tripped. Also, I drove the rig 15 miles after I first hooked it up and still got zero power to the smallest light. I freaked out and just unhooked the battery.
(If it's in the wrong way, that doesn't solve the mystery as to why the inside power meter suggested the battery was 3/4 full when I originally hooked it up. Unless a fresh battery can just do that, even if the polarity's reversed.)
Thanks in advance for any/all opinions!
/Peter
So over the last week or two my coach battery has slowly gotten worse and doesn't hold much of a charge anymore. Which is to be expected since it's 6 years old and I've been using it a lot lately.
This weekend I bought a new AGM battery and hooked it up. My interior panel showed 3/4 charge and I walked away, thinking that was that. Then yesterday when I went back to the coach for the first time since I hooked it up, it was DEAD. Not a flicker from an interior light. It occurred to me when I hooked it up that I put it in the wrong way. The coach builder, in their helpful wisdom, decided it wasn't necessary to mark the leads. Here is what I've got:
- Three black cables that go to one post.
- A single white cable that goes to the other post.
With only that to go by, which would you guess is positive, and which negative?
Yes, I could take the battery out and flip it around, but (a) that's hard. It weighs 50 lbs. and you lose finger skin getting it in the box, and (b) if it's in the right way and I messed something up, I don't want to make it worse by putting it in the wrong way. Yeah, I checked all the circuit breakers and nothing got tripped. Also, I drove the rig 15 miles after I first hooked it up and still got zero power to the smallest light. I freaked out and just unhooked the battery.
(If it's in the wrong way, that doesn't solve the mystery as to why the inside power meter suggested the battery was 3/4 full when I originally hooked it up. Unless a fresh battery can just do that, even if the polarity's reversed.)
Thanks in advance for any/all opinions!
/Peter