SOHC.co.uk Forums > CB750

Battery question

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K2-K6:
Thankyou all for your informed responses, like you Mick I was playing with using one battery for a couple of bikes as it's the same type for my CBX-750.

I'll go for the yellow Moto-batt I think as the cost seems fairly close to a decent acid one.

Many thanks.......nigel.

UK Pete:
i bought a cheap lead acid battery on ebay 3 years ago for £21 + free delivery, it is still going strong, i used to by varta batteries they are ok, the only gel battery i bought was awfull, i think it was Lucas, it only lasted a year,  total shyte
I might ty a moto-batt  gel next to see how things have come on

Waggles:
I am on an 'El cheapo' lead acid at the mo, but can't comment on life as its only been on the road 4 months, but it seems OK so far, even when I forget the kill switch and churn it over for a bit  ;)

I think gel types are better ( I have one fitted to my boat and thats lasted years with only a wind charger that trickle charges only ) the only thing I have heard negative is that if you overcharge a gel type at 15 volts or more it can destroy it whereas a lead acid is a bit more tolerant ( in fact some scholls of thought say your SHOULD do that to an acid type periodically, not that I would recommend it! ) so as long as your regulator etc is OK, I'd go for a gel type next ( I was just keeping rebuild costs down ) worth it for no spill / maintenance too!

UKROBK7:
I need a battery for mine so this thread started me looking as I fancy a GEL type.  What I have found on the manufacturers sites is that the GEL type should not be overcharged, the voltage should not exceed 14.4 volts or they will vent to atmosphere to release the gas pressure.  Too much of this causes them to fail, so your charging circuit needs to be good.  Also one site said not to use any type of trickle charger on their batteries.  My local Honda dealer said they have had a number of cases where the GEL batteries have suddenly failed and the regulator was found to be faulty.

Rob

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