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      06-30-2013, 04:21 PM   #7991
JDrago1926
335i Owner
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Drives: BMW 335i 4 Door
Join Date: May 2013
Location: New York

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2007 BMW 335i  [0.00]
Quote:
Originally Posted by foghat View Post
Unless your battery is on its way out, you shouldn't need a charger. Especially just for switching maps.

I've installed and uninstalled mine twice now with no battery issues. Have done plenty of map changes as well.

I do make sure the AC fan is off as well as radio muted.
Thanks man! I may just pick one up to be safe, it's kind of worth it to me anyways for $20-40....
Appreciate 0