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Message: <blockquote data-quote="Bishop" data-source="post: 2884" data-attributes="member: 600"><p>TO all the great Sifu's out there,My battery died yesterday. The mechanic changed my battery to a Bosch one.1. is there any difference which brand you use?2. The old one was an original BMW maintainence free one, but the new one is not. Which will last longer?3.The old one was a 12V 90Ah but the Bosch one is 12V 85Ah? Is there any difference? The mechanic said it was the same just the physical size was different.4. How much is an original BMW battery?5. Is there any indicator for Battery in my '99 E39 523? My battery died in a shopping mall parking at midnite on a Sunday night. Not a very good time to die.... Any way I can tell if it is running low??please tell me I didn't just get ripped off... :beaten:  :beaten:</p></blockquote><p></p>