Small Battery.

Who makes the smallest 12 volt battery that will provide the cranking amps and life needed for multiple engine turn overs and starts without causing problems ?

Im looking for a very small battery ( packaging issues- where to put a battery ) for my Y Block powered 26 roadster pickup.

I want to be able to start the engine and make repeated starts after short distances, without turning the key to find a battery that won't turn the engine over

 

I used a 2003 Honda Civic battery from Advance Auto rated at 500 cold crank amps. its pretty small.

Here is a link to battery sizes based on BCI battery group number. The Civic battery is group 51.

http://www.rtpnet.org/teaa/bcigroup.html

A 2003 Toyota Rav4 battery is slightly bigger but has roughly 640 cold crank amps. Its a group number 35.

Bryan

 

I'm using an Odyssey PC680 to run my 318 poly in the 32-5w. It seems to do the job just fine and ct1932 ford on here is using one to crank the 21 studder in his revamped 32 roadster. You could PM him and ask him if it's doing the job OK. I don't think you would get anything smaller that would do the job.

Dimensions are 7.15" long, 3" wide and 6.65" high
You can check them out at odysseybattery.com

BTW mines in the trunk and I'm only using an early birdcage Chrysler alternator which has a WHOPPING 35amps output.

 

optima 75/25. http://www.optimabatteries.com/optima_products/redtop/specs.php

i love these batteries. wont run nothin else.

 

I use a group 51 battery you can get them with positive at right or left

 

X2 - this little power house is great. Had one in my 29 RPU with a High Compression 347 stroker for 7 years, no problems.

Putting one in another 29 I'm building for a customer right now.
http://www.odysseybattery.com/autospecs.html

 

Another Odyssey fan, lays on floor under front seat, been there for years now and had no issues whatsoever. I use a trickle charger to keep it topped up as not a daily driver.

 

I run one on my 401 too

 

They take a special charger
A regular one will not work
The charger is as much as the battery

 

Check again. 370cca

 

I also have one of these in a Honda Insight. tiny battery, works great.

 

A decent "regular" charger works fine. Some of the chinese crap on the market today probably doesn't fall within the charger specs outlined on the battery data sheet, but your'e not going to have one of those if you are a traditional rodder.

If they required a "special" charger, then they would also require a "special" alternator on the vehicles they are installed in.

 

Odyssey battery would be the first place I look.
Amazing how much power is in their small packages.

 

pic for reference, with styrofoam spacer.

 

I may have to look into one of those Odyssey batteries, we were just talking about a small bat for my Tudor.

 

Satisfied Odyssey PC680 owner here as well. I have it mounted up under the dash.

 

I used a 12v tractor battery (Interstate) in my flatty powered bucket.

 

Thanks guys it looks like the Odyssey PC680 will be the one. It really is the smallest and I was concerned in its ability.

Good to hear that it has been used sucessfully in applications like mine.

 

got it right. my regular charger from the big W works fine. just make sure you do the slow charge. that seems to work better.

 

I'm another fan of the PC680 battery. When I built my 23 there was no room for a regular battery so I called Odyssey and spoke to the owner of the company. I told him I was concerned that a small battery like that wouldn't start the 350 Chevy in my rod. He said he has a blown BBC in his and it works great. I bought one and he was right, even after sitting for weeks it would crank over like it was fully charged.

And no, you don't need a special charger for any of these batteries, a regular smart charger will work fine.

Don

 

Miatta Batteries are tiny. Rather pricey new though

 

Never heard of Odyssey till I bought my 32 last year and found out it had one. It works great and is really really small. Be prepared to pay more than you would for an Optima but seems to be worth it.

 

Mine was $130, that's $20 more than the stock replacement battery.

 

I'm running an Odyssey in my roadster, keep it topped up with a Battery Tender. When the Optimas fail in my other cars I'll replace them with an Odyssey.

 

Wow. They quoted me over $300 for one out here at my local Battery Store.

 

Honda Goldwing motorcycle battery, High amps pretty small!
KK

 

As per Optima techs, if the discharge voltage drops below 10.5 volts you need to charge with a special charger or put a lead acid battery between the 2 until the Optima comes up over 10.5 volts. Ask me how I know, burned up my alternator charging my Optima after I left lights on and jumped started it.



Ago

 

Are these odessey bats a gel or traditional style battery?

 

I use the 25. I don't need dual terminals.

 

After seeing my buddy with a Goldwing replace his battery every year for about 5 years I will pass on this one. And that was with a charging system that was up to spec and a battery tender during all inactive times.

For some reason the batteries just did not survive.