SOHC.co.uk Forums > CB750
Battery
Matt_Harrington:
Of course, if you have loads of spare cash, you could fit an Odyssy battery. They are very good but expensive. Also take up a lot less space than conventional (like most AGM batts)...
royhall:
I have found a bit of a problem with AGM batteries in that they are slightly taller than standard and the leads aren't quite long enough to reach. Most of my leads did fit after a bit of rerouting but on the 350 I had to replace with slightly longer leads.
I thought it may just have been Motobatt so I tried a different brand this time and that's the same. I'm told it's because they have a circuit board on top so that adds height. Never opened one up so don't know if that's true.
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Pauarc:
Hi Martin
When I lifted my cb750 engine out I made a platform just in bit higher than bike frame the put jack under engine with a piece of wood on jack and then slid it out I did it on my own but if you got help even better I left on platform to work on
Paul
royhall:
They are truly heavy engines. Well done doing it on your own.
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McCabe-Thiele (Ted):
Not sure if it applies to motor cycle batteries, on cars many but not all manufacturers specify a casing type such as Type 019 that applies to two of our vehicles. This dictates the layout & type of connection lugs, battery height, width & length in mm.
When looking for a replacement battery I search by casing type, Ah & cca I then double check the dimensions as there seems to have been a drift for selling some 019 types that are not quite the original dimensions. I suspect that manufacturers are looking to make batteries that fit a wider range of vehicles by ignoring some of the fine details.
I bought a replacement Varta battery for a BMW Mini some years ago from Eurocarparts - it was very cheap at the time compared with everything else. When I came to fit the battery it was not tall enough - it was impossible to fit the connections due to the battery location as it would have shorted on the bodywork of the battery well. I managed to make it fit by standing it on a thick peice of Polystyrene sheet. Far from ideal - the battery failed a few months out of warranty.
Below video shows AGM technology.
https://www.youtube.com/watch?v=u2QwntIO4Mk
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