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When changing the battery, what voltage should the power saver

(2005 BMW 525i)
in Yorktown, VA on August 10, 2012
there is a choice between a 9v battery saver and a 12 volt
battery saver.
Displaying 1 answers & 0 comments
Popular Answer
on August 10, 2012
A 9v power saver will be fine for keeping your radio and security settings. If you are planning on replacing batteries for a living then invest in the 12v.
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