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displaying posts 1 to 8 of 8
| Author | Subject: fitting bigger batteries |
 buzzbrightyear
Seasoned Pro  Location: hiding all receipts for car Registered: 09 Jul 2008 Posts: 11,901 Status: Offline |
Post #1
hi, im just wondering if any harm can be done by fitting bigger more powerful batteries?basically i have a brand new 740 amp big battery and my mate needs a battery for his m3, the battery in his m3 is a 650 amp one, would it damage anything if i fitted this one with an extra 90 amps? thanks andy ________________________________________ andrew315rawson@live.co.ukMoonstone phase 7 gti6 My Project thread: http://www.306gti6.com/forum/showthread.php?id=119992&page=1 |
 Posted 12th Nov 2012 at 17:41
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Niall
Seasoned Pro  Location: Epsom Registered: 06 Jun 2012 Posts: 1,941 Status: Offline |
Post #2
wouldnt damage anything at all but you will probably find the alternator wont charge it fully and thn of course it might not fit because the 740 is probably physically bigger than the 650 |
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Posted 12th Nov 2012 at 17:46
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tvrfan007
Seasoned Pro  Location: In the garage Registered: 29 May 2005 Posts: 3,488 Status: Offline |
Post #3
It might not fit as above, but I've been running a huge battery in my hdi for years without issue.________________________________________ I'm Si btw Night Blue VW Golf GTD Bianca LBSC Rallye - Track/Road Slag Project Thread Sparkling Silver Mini Cooper D - Super Dooper  - (The other half's wheels) |
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Posted 12th Nov 2012 at 17:59
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swiftyboi006
Seasoned Pro  Location: Maidenhead Registered: 12 Apr 2010 Posts: 2,110 Status: Offline |
Post #4
Why not just fit the correct battery  not sure but i think you will need a higher amp output alternator to keep it alive________________________________________ cherry p1.....SOLD (regreting this)blaze p2.....why did i buy this SOLD Black p3  |
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Posted 12th Nov 2012 at 18:02
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welshpug!
Capt Pedantic  Location: Bigend, Wales. Registered: 27 Mar 2007 Posts: 25,839 Status: Offline |
Post #5
I've Run a TD battery on my 205 for years with a standard 205 alternator without any issues, however space isn't such an issue as it doesn't have a box.IIRC the BMW would have a fair amount of space as they tend to have sizeable batteries anyway, especially the high spec diesels. ________________________________________ need a part number? get on here - http://public.servicebox.peugeot.comBring on the Trumpets. |
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Posted 12th Nov 2012 at 18:02
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buzzbrightyear
Seasoned Pro Location: hiding all receipts for car Registered: 09 Jul 2008 Posts: 11,901 Status: Offline |
Post #6
its an m3, its just a case of me having a new battery sat there, and he needs one so was trying to save him some pennys________________________________________ andrew315rawson@live.co.ukMoonstone phase 7 gti6 My Project thread: http://www.306gti6.com/forum/showthread.php?id=119992&page=1 |
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Posted 12th Nov 2012 at 18:46
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coskev
Seasoned Pro  Location: Oswestry Registered: 01 Nov 2009 Posts: 3,132 Status: Offline |
Post #7
If it physically fits it will be fine swiftyboi006 wrote: Why not just fit the correct battery not sure but i think you will need a higher amp output alternator to keep it aliveIt stated the answer to that in the opening post  ________________________________________ Red GTB1756 powered Fabia VRS daily driver,LBSC Gti6 eater........Mac1 ZR R1 kit car build in progress. |
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Posted 12th Nov 2012 at 19:06
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swiftyboi006
Seasoned Pro Location: Maidenhead Registered: 12 Apr 2010 Posts: 2,110 Status: Offline |
Post #8
So it did  ________________________________________ cherry p1.....SOLD (regreting this)blaze p2.....why did i buy this SOLD Black p3 |
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Posted 12th Nov 2012 at 19:22
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