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Old 09-Jan-2006, 13:04
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phil_h phil_h is offline
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The 'rapid electronics' link first page shows a load of batteries designed for constant-current output use in applications where you need battery-backup for electronic equipment.
Batteries for use with started motors need to supply a much higher peak current than these will happily do.
Personally, I would never use one of these on a car or a bike.

If you want a good battery, you have to pay for it.
If you just want cheap, then you will get a battery that doesnt last.

You should also remember that bike batteries get shaken up a bit more than most, so tend not to last as long

So, what about the other stuff ...
well the AH ratings tell you how much charge they hold (capacity), not how you have to charge them, so more is better.

Couldnt remember the capacity, so just fought through the yuasa website - the specced yuasa yb16al-a2 is 16AH capacity
So ... the 17AH from the other peeps is the one to try AS LONG AS IT FITS :P

[Edited on 9-1-2006 by phil_h]

Just remembered the other trip-wire with non-automotive batteries ... the terminals !
If the batterey doesnt have a bolt-type terminal, it will prob not be able to cope with the current the starter motor needs ... it _will_ work at first, but a small spade connector will heat up every time you pass a big current through it, and each time that happens it will corrode ... and the connection will get worse and worse and cause the starter to lose power and spin too slowly, which can cause the sprag clutch to chatter, and fail, which costs a couple of hundred to fix
(/rant)

[Edited on 9-1-2006 by phil_h]
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