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Old 07-23-2011, 08:20 AM   #1
mcfarlak
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Inverter

How do I check to make sure the inverter is charging the batteries. Thanks in advance for your help.
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Old 07-23-2011, 09:52 AM   #2
Motor31
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Quick and dirty answer is a multi meter at the battery. If the battery(ies) charge level shows 13 volts or more it is almost certainly being charged. Then you can push in the battery isolator, wait a couple minutes and check again. If the charge level drops then the inverter was definitely adding juice to the battery(ies).

My old style converter uses a 13.8 volt level charge. My batteries are now on their 7th year of service although I think I'll be changing them this before fall. One is showing more than just 1/10 volt difference in holding level. I use two 12 volt deep cycle batteries in my house bank. I check the batteries every 3 months and add water as needed. So far I have not had to do anything more than that. Unlike my car and tow vehicle batteries, the trailer batteries have not caused corrosion at the leads.
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