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Old 09-30-2016, 08:05 PM   #1
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Charging house batterys

Any advantages to plugging in your MH when your not using it for a few weeks/months ? I check my gauge regularly to see if battery is staying charged and it shows Full charge so I don't plug in. Thanks

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Old 09-30-2016, 09:04 PM   #2
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Flooded batteries benefit from a float charge to keep sulfation to a minimum.
AGM batteries should be topped off every month or two.
Lithium batteries should be recharged if they fall below 20%.

All batteries can gain some benefit from being float charged during cold winter months as they will theoretically keep more life cycles over time. Plus they don't freeze as easily if they are fully charged.

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Old 10-01-2016, 08:34 AM   #3
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The problem is you need a float charger. If you have a single stage converter as is common on C's you can cook your batteries dry. Better is to look into a battery minder type setup for your house and engine batteries. They put out much less current at a lower voltage so they keep the batteries up but do not cook them. Their problem is that they will not charge a low battery. Either way check the voltage occasionally to see which way it is moving and act accordingly.
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Old 10-03-2016, 05:53 AM   #4
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Just put a tablespoonful of mineral oil in each cell, it will float on top of the water and stop the charger from boiling them dry.
Ted 'n' Laurie, plus Jackson (aka Deputy Dog, the Parson Russell Terrier 'fur kid') and, Rylie (who crossed the Rainbow Bridge June 14, 2012).
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battery, charging

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