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Smallest size battery I can use?

  • Thread starter Thread starter claygs750e
  • Start date Start date
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claygs750e

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I would like to get the smallest size (dimension) battery I can to hide somewhere on the bike to open up the middle of the bike. So far the electronics will be mounted under the seat pan, but the hump in the back fender where I plan on mounting the battery is pretty small. I've looked at AG and Shorai 12v/14a batteries, but they are still pretty big. Can I go down at all in amps because it seems the lower the amps, the actual size of the batteries get smaller. I thought about converting to kickstart, but from a quick search it looks like I would need to replace the engine.

Thanks for the help
 
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How many ah battery did you buy? Looking at the service manual it says 12v/14ah so I'm not sure if I can go smaller in ah.
 
Mine is supposed to be 10ah at least stock battery is that spec.

I am sure my present one is 8 ish

regardless I think the CCA must hold me in good stead because my bike cranks like a bastard and starts first throttle hit with full choke.

ah alone may not be the critical factor.
 
So if your running a 8ah on the 550e I wonder if I have to go up a little since mine is the 750cc. I'm trying to get the smallest size since the 12ah that closely matches stock won't fit under the rear hump on the bike. I'm just confused if I base my search on only ah, cold cranking amps, ect...
 
If posplayr was only here.


I am pretty sure that the battery spec is related to the sum of all electrical drains on it.

After the lights and the coils I should think the greatest factor impacting a battery would be the starter.
The bigger engine would have a greater mas to spin along with a possibly higher compression ration to deal with.


Perhaps two smallish batteries wired in parallel would more than meet the bill.
 
Cranking is the biggest load. If it's tuned perfectly and always starts at the first touch of the button you can use a tiny battery. Anything goes wrong and you are push starting.
 
So looking at the service manual it says: 12v 50.4kkC (14Ah)10HR. Does this mean that its a 12v/14Ah battery I need? I don't see anything in the manual about cold cranking specs I need unless the numbers above indicate that. I'm basing this on the GS750 16valve manual I got off bikecliffs site.
 
What Suzuki recommends and what you need are two different things.

Do you really need to be able to crank it for several minutes? My GSes always start in a second or less, cold or hot. One of my 750s would start if you flicked the button with your fingernail, every time.

I could have used a handful of AAA batteries.
 
What about this Odyssey?PC545-

http://shop.odysseybattery.com/p/pc545-p

Specifications

Pulse (5-second) Hot Cranking Amps (PHCA) 460 Cold Cranking Amps (CCA) 150 20Hr Nominal Capacity (Ah) 13 Reserve Capacity Minutes 18 Dimensions L x W x H (in) 7.00x3.38x5.17 Metric Dimensions L x W x H (mm) 117.8x85.9x131.3 Weight (lbs) 11.4 Weight (kg) 5.2
 
These batteries are bigger than the what the op is probably looking for, but for general information, at least, I posted a couple links

I bought a couple of the same spec batteries for a couple bikes (they call for the same battery).
I think odyssey batteries look like they are good for the money, I had not seen them before. Thanks for the link.

Here's a deka link:

http://www.dekabatteries.com/default.aspx?pageid=510

Battery for the GS1000 (12ah)

http://www.etx15l.com/
 
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My KTM came with an AGM battery smaller than that, it spun the heck out of my GS550 starter, and it's only something like $26
 
That is an ideal size for the customizer, but I know what you mean about the price!
 
tkent02 said:
Cranking is the biggest load. If it's tuned perfectly and always starts at the first touch of the button you can use a tiny battery. Anything goes wrong and you are push starting.
Click to expand...

Without doing a lot of analysis on contributing factors that is about it. You only need amp hours if you are cranking a lot. Your smaller battery will actually charge faster providing you with peak cranking performance faster than a larger battery. If you have a series r/r and don't spend a lot of time idling at 1k rpm you will be good with the smaller battery. Just keep charging system in peak performance.
 
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