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special charger for AGM batteries?

jcollings

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I see threads that say they should be 12/7 so I don't want to be left stranded and have a problem if you know what I mean
 

mkcoen

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I see threads that say they should be 12/7 so I don't want to be left stranded and have a problem if you know what I mean
Try putting a small load on them and then retest. If it's just a surface charge it'll drop below 12v pretty quick and indicate a dead cell. If they hold steady then should be ok for now.
 

mkcoen

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Ok, I was thinking more based on 4 agms. Thanks
If they're still in the vehicle you can do the same. Just turn on the headlights. Unfortunately since it's split with part going to the 24v section and part to 12v section I'm not sure it would draw off of all 4 batteries. Also if it's just a surface charge it likely won't have the same reading after sitting overnight.
 

Ukraine Train

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With two bad batteries, my truck cranked really slow. Sometimes I'd have to hit the button a couple times to get it to turn over and start. The voltage gage also only read about 24v even with the alternator running. I think you'll notice pretty quickly if yours are going south.
 

jcollings

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Well after charging with a Norco Genesis one of my batteries boiled up some acid out of the vent holes on a hawker AGM not good very hot charger should have shut off
 
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