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      02-26-2015, 11:02 AM   #23
JoeFromPA
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Drives: '15 AW M3 6MT Stripper
Join Date: Aug 2013
Location: SE PA

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Quote:
Originally Posted by ForTehNguyen View Post
knowing if a lead acid can be swapped in is useful information. These lithium batteries arent exactly off the shelf and available everywhere. Knowing if, in a pinch, you can put a lead acid in to get moving is pretty important in case of battery failure. In warmer climates batteries are replaced every 3-4 years due to the heat. If you start pushing that time frame here it gets dicey. After the 3 year mark, you have to really watch how the battery is behaving and its not worth trying to squeeze an extra 6 months out and risk a battery dying on you in the worst possible place and time. Summer time is when they really like to die.
I'm not going to comment on the electronics aspect, but from a size perspective the LI battery is the same size as an available counterpart in lead acid.
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AW/Carbonstructure 6MT 2015 M3 picked up 8/22/2014. Stripper except for adaptive suspension. Weighed at 3,450 pounds with 1/4 fuel. 70,000 miles as of February 2020.
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