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70ss496.
I would start by changing the leads on the charger. If that bank acts differently then it was either a connection or battery issue. If that bank acts the same then it would be a charger issue, then you could contact the charger company and get that addressed.If you maintain your batteries (ie – water) than I would say it is probably a charger issue but I would check.Good luck…I hate battery/charging issues, but I normally find my trouble when I am on the water atleast you are seeing it in the garage.Judd Lasiter
You can also check your connections; break the connections at the battery, hit them with a wire brush – tighten. Assuming this fixes your problem, cover the conneciton with petroleum jelly to keep the air and moisure off, which causes oxidation at the terminals. Also make sure your wires are routed out of the bilge so they dont wick water.jwt
Often it is an original compatability issue with a battery and the CMR Charger. We have found swapping the leads to fix the issue on the battery or charger. It has not been pinned down as to why this does work, though it has unless you have a chargers issue beyond that. We will have to find one to figure it out when we have an opportunity to research it. Of course this is assuming you have the CMR Chargers.Good Luck!BCB
If you have a good voltmeter, you can see if the charger is putting out sufficient voltage to charge the battery. When charging, you should see 13.75 to 15 volts at the battery terminals. If you see 12 volts at the battery terminals with the charger running, you may have a bad charger. If you see a lower voltage; you may have a bad cell in the battery; swapping the charger leads to another battery would isolate this condition to the charger or battery and is the first thing you should try. A bad battery may also show 12 volts with no load on it but drop dramatically when loaded – this could also fool the charger. You can measure the current that the charger is putting out but that is a little more involved; if you are interested, contact me at:[email protected]
My charger is the CMR charger, and it and the batteries are new, so there is no corrosion on the terminals. Anyway, I charged everything last night, and had 2 greens and one red like last time. I changed the charging leads on the t/m batteries and both went red. I charged overnight, and checked this morning, and again, the middle bank stayed red. Im assuming both my t/m batteries are now charged. It seems to me the middle bank is just not charging, and I need to replace the charger. What are your thoughts? How fast does CMR turn around something like this? I dont want to be without a charger long. Thanks.
Contact your dealership if you are close,or BCB if you a distance off for some help.It does need to be checked for charging,to see about further issues.BCB
I spent all day today on the lake with 20 mile an hour winds and whitecaps. Fishing was good for 50 degree water. Anyway, I came home and plugged the boat in. I went back after about 6 hours, to switch the leads, and all lights were green. I guess changing the leads did the job. Ill let you know if anything changes, but I think all is okay. Thanks!
It usually does work when this happens.Glad you are in shape again!BCB
Alternating red and green mean you have a bad connection(loose), or reverse polarity. Unplug and check connections, and polarity, and plug back in. If it begins after being plugged in for a long time it is a bad cell in the battery. D.
I found out the hard way that it also can mean that the battery is so discharged that the charger does not recognize the battery- to test, charge battery with a regular trickle charger until it has a charge and then try the onboard and see if the flashing stops- it should! If not you have other probs!!BAYOU BANDIT
Just because the light goes green does not mean it isnt charging. you can put a meter on it and compare if necessary, but 1st read the manual or go online to their website and check it out ! Good luck, D. http://www.propakcharger.com/technotes.htmLast edited by dbasketman on January 15th, 2009, 2:08 pm, edited 1 time in total.
It could be that they are charging as mentioned, and dont need much of a charge. The units balance charge. Once you have a hard use the batteries should go down. Right now the charger is reading those levels. BCB
The one thing you might try is to hook your battery to a regular manual charge for a few minutes. Our on board chargers want recognize / charge a dead cell or very weak battery. But after charging with the manual, if its not a dead cell, it will often start charging once again. Glynn
I also should have pointed out that I have found these chargers are very “sensitive” to any sulfation which causes them to go green even earlier than 85%. I bet my batteries have to be less than 50-60% for the light to stay red. I hope this helps.-Joe.
Joe, that explains everything and I thank you for yor post!
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