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Can I charge aux battery in vehicle?

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Old 09-03-2015, 02:19 PM
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2005 E55 AMG
Can I charge aux battery in vehicle?
2005 E55 AMG. Can I charge the auxillery battery while it is still in the vehicle or do I have to remove it?


Thanks, Matt
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Old 09-03-2015, 03:14 PM
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2005 Mercedes E55 AMG
You can charge it... remove the airbox and place leads. I don't really know why you would, it's three bolts to remove
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Old 09-03-2015, 04:45 PM
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I appreciate it. Just doing research before I do it. Came out really quick.
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Old 09-03-2015, 11:54 PM
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Originally Posted by rockthemullet
You can charge it... remove the airbox and place leads. I don't really know why you would, it's three bolts to remove
It's mentioned in other thread, but the car may not fully charge up the aux battery and one that's not fully charged won't last as long, something to do with the charging algorithm.
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Old 09-04-2015, 07:50 AM
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Originally Posted by cetialpha5
It's mentioned in other thread, but the car may not fully charge up the aux battery and one that's not fully charged won't last as long, something to do with the charging algorithm.
I'm saying I don't know why you wouldn't remove it since it's three bolts.

If your car can't charge the aux, something else is going on in the system
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