Camping and RV Forums  Recreational Ve...  RV Maintenance ...  Testing for Bad Battery Cell
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New Post 6/28/2012 3:40 AM
  josh54
110 posts




Testing for Bad Battery Cell 
I have 4, 1-year-old Lifelines connected to a Magnum 2012 inverter/charger. A few days ago, I noticed that it took quite a while for the battery to charge. I talked to a tech agent from Magnum about this, and he said that it could be that one or more of the battery cells has gone bad, but he didn't tell me how to check for this. How do I do this? I'll be testing a 6V AGM battery.
 
New Post 6/28/2012 9:00 AM
  murffdog123
189 posts




Re: Testing for Bad Battery Cell 
Test each cell with a hydrometer available at any auto parts store or walmart. DON"T buy the cheap one with the little "BB's" that float.
 
New Post 7/2/2012 12:32 PM
  maximo
116 posts




Re: Testing for Bad Battery Cell 
Try first using a voltmeter. If it reads 4.3V and below, it's got at least one bad battery cell.
 
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