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Old 17 January 2005, 10:34   #11
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Not any more, flat on the floor. Gosh thats alot. May have to look at plan B. I will have to design and build one.

Many thanks guys,
Tim.
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Old 17 January 2005, 11:47   #12
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Or make some phone calls, unless Matt can build one or repair it.

http://www.boatsandoutboards.com/view/BEM145/

http://www.billhigham.co.uk/a_html/intro.htm

Pete
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Old 17 January 2005, 16:59   #13
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Quote:
Originally Posted by MadMat
Is it actually a regulator or just a rectifier?

Its both! they call it the "Regulator rectifier".
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Old 17 January 2005, 17:55   #14
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On my old Merc 150 V6 with a 16amp stator, it just had a rectifier. When it failed, I replaced it with a bridge rectifier from RS. Since this is only a 9 amp stator, I'm wondering whether a 5 quid rectifier might also be a good substitute here too.
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Old 18 January 2005, 05:18   #15
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Lead acid batteries require a constant voltage (13.8-14.2) to charge. As it reaches full charge it should float at the charge voltage. On mine the battery voltage rises to 16.5v after about 5 minutes. It has a small diamond shaped pack which is the rectifier and given the fact it stays at 16.5v may have a regulator built in or may be the peak voltage output of the alternator. Not sure.
One thing is for certain after a long run the battery gets really quite warm and gasses off quite actively.
I have been thinking about this and I am going to design and build one with a 20 amp capacity (200% rating) at 13.8v using a PWM regulator. Tricky bit is making it small enough to fit.
Before I do I will enquire at B&O.
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