Kaderabek
GOLD Star
Maybe that's what happened to my brain. My batteries are not disconnected in any way. The system is 24V, the charger is 12V with two leads. I understand what you mean though.
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Thanks FJBen for letting this discussion continue here. Good info. Just bought a Noco Gen5x2 and wasn't confident on the set-up.The leads are connected directly to the posts. Soon to be the other posts.
Thanks FJBen for letting this discussion continue here. Good info. Just bought a Noco Gen5x2 and wasn't confident on the set-up.
I think we can rule out the charger.Switch the leads to the opposite batteries and see if the light pattern follows the battery. If it doesn't there is a problem with the charger.
May or may not relate to your experience but then again it might. My Ute is 12V but has a second battery that is managed by a National Luna system. If I drove the truck everyday I never noticed an issue but if I let it set for 4-5 days it would be slow cranking. I assumed a parasitic drain was the culprit but as it turned out one of the batteries which was less than 2 years old was the problem. Since replacing the battery (the cranking battery in this case) I’ve had no further issues. Its it’s a parasitic drain the new battery seems capable of handling it.I think we can rule out the charger.View attachment 3232522
I'm not disputing that I likely do have something draining the batteries but it gets me to thinking. Is it possible that these batteries are old and one has completely failed (true) and replacing both with strong batteries would resolve the issue? Which is to say, is there a certain amount of drain that wouldn't affect strong batteries? Or will whatever drained these batteries just as quickly drain new batteries? I suppose that depends on what is causing the drain but for the sake of conversation, perhaps we assume normal things like the clock, doors being periodically opened, etc. Thoughts?
This is exactly what I was thinking about. I do plan to replace them both at the same time.May or may not relate to your experience but then again it might. My Ute is 12V but has a second battery that is managed by a National Luna system. If I drove the truck everyday I never noticed an issue but if I let it set for 4-5 days it would be slow cranking. I assumed a parasitic drain was the culprit but as it turned out one of the batteries which was less than 2 years old was the problem. Since replacing the battery (the cranking battery in this case) I’ve had no further issues. Its it’s a parasitic drain the new battery seems capable of handling it.
MOL?Battery #2 took 14 hours to recharge. Battery #1 took 24 hours MOL. I suspect they'll both need to be replaced but I'll leave them on the battery tender until I can drive it with some consistency and see what happens. Thanks as always for the great advice. Nice to see those green lights anyway. View attachment 3228160
More or less. Nothing is exact in my world.MOL?
what I have experienced is that if you are replacing batteries in a 24v truck, replace both at the same time with ones that have the same build date. One old and one new will cause what you see. Got so tired of this I am switching to 12v.
Update, I got a replacement amp that worked for a short time, and now exhibits strange behavior (cutting out at certain frequencies and levels). THis one put quite a draw on the battery when the vehicle was OFF. So now I am wondering if our old battery was fine, but the amp was drawing it down w/ a parasitic draw.The X2 AGM?
I put one in the LX and loved it.
I just replaced it a few months ago.
We ran that battery down to the point where the truck died when the alternator was dead.
I charged it on an AGM charger for several days and then it lived a few more years.
I ran the fridge off it as well. It got down to 11 volts multiple times and then still started the truck.
It lasted ~5.5 years. It still worked, but the cranking was slower. Coincidentally, the amp died a month later, not sure if it could have been pulling on the battery?
2 thoughts - prices have gone up, and they went from I think 4 year replacement to 3 year.
I hope I’m not interrupting my thread with some tech on my vehicle….