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ug
Joined: 23 Apr 2005
Posts: 23
Location: Russia, Syktyvkar
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 Posted: Tue Oct 02, 2007 5:03 pm Post subject: Battery size |
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What battery size do you guys use? The mine is 72Ah. And I have a bad charging. May be it's because of tooo big battery. I mean alternator just has not enough power to charge such big battery?..
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Euro 924 '85 016/8 4-wheel disk brakes |
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Mike924
Joined: 12 Aug 2004
Posts: 2601
Location: IoW UK
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| Posted: Tue Oct 02, 2007 5:19 pm Post subject: |
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Charging current isn't related to battery capacity.
Poor charging is almost certainly due to bad earth connections. In particular, check the earth strap from the alternator to the engine block.
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1985 Porsche 924 'Lux', Kalahari Beige (my ex)
1993 Porsche 968 Coupe, Midnight Blue, 6 spd
'There is no substitute for a little grease under your fingernails.' - Chrenan, 924board.org |
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ug
Joined: 23 Apr 2005
Posts: 23
Location: Russia, Syktyvkar
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| Posted: Tue Oct 02, 2007 5:54 pm Post subject: |
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In order to have good charging you must have a proper charging current. Charging current for big battery is bigger than one for small battery. So maybe the alternator just can not produce such a big charging current.
Earthing is OK. Regulator is new. Alternator is OK.
What battery do you use?
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Nobbi
Joined: 24 Aug 2006
Posts: 1397
Location: Germany
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| Posted: Tue Oct 02, 2007 6:06 pm Post subject: |
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Hello,
the biggest/largest battery for the european market was a 63 a/hr battery.Depending which extras (Airco,e-seats,e-mirrors ect.) are ordered.I drive my 1977 modell with a 45 a/hr battery since years and have no problems with it.
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ug
Joined: 23 Apr 2005
Posts: 23
Location: Russia, Syktyvkar
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| Posted: Wed Oct 03, 2007 2:10 pm Post subject: |
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Verstehe ich. Vielen dank! 
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Nobbi
Joined: 24 Aug 2006
Posts: 1397
Location: Germany
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| Posted: Wed Oct 03, 2007 5:14 pm Post subject: |
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Oh, du kannst deutsch! dann haette ich mir mein englisches gestammel ja sparen koennen.
Ich denke du kommst auch mit der kleinen batterie gut hin.Die Leistung der Lichtmaschine schwankt abhaengig von der motordrehzahl, deshalb wird der lichtmaschinenregler benötigt um konstante ladung der batterie zu gewaehrleisten.
Gruss
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ug
Joined: 23 Apr 2005
Posts: 23
Location: Russia, Syktyvkar
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| Posted: Wed Oct 03, 2007 8:54 pm Post subject: |
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Danke Nobbi! Mein Deutsch ist nicht so gut. Ich verstehe aber ich sprache mit knapper Muhe. Ich studiere Duetsch jetzt.
Originally I had 55Ah battery. But the guys from battery shop said that I need at least 72Ah. Stupid assholes! Mainly I drive with 3000rpm.
I just wanted to know the size of the battery. So thanx for info!
Tschus!
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