If you are complaining about the CCA rating being low don't go with the password JDM conversion. The Odyssey 680 is only rated at 220CCA (even though the actual CCA is more like 300). With a few mods to the tray and a new strap it looks as if the Odyssey PC1200 would fit if you are using the stock airbox.

The size of the stock battery is 151R. I talked to someone at Yuasa USA a while ago and they said that battery didn't exist. Deka doesn't have it either. Your best bet would be a slightly larger battery and make small modifications or relocate the battery to the spare tire well (What I am working on right now).

If you can't tell, I am a fan of Odyssey Batteries. I am currently working on putting two 925's in the spare tire well. One 925 will not fit in the stock battery location without heavy modification to the mounts.

so that means is not good to get the CF powerchamber intake at password.. ill just go for the T1R intake then.. you dnt even need any relocation and stuff like that.. cool

Mine starts fine even at -25C.

330 CCA should be fine for a 1.5l engine. If you had a 3l or 4l engine then yes, you'd probably want a bigger battery.

The general rule is 150 CCA per litre for a gasoline engine, and 200 CCA per litre for a diesel engine.

When it's not so windy/rainy I'll throw my clamp meter on the battery and see exactly how much power the starter uses.

Batteries can be made with lots of thinner plates (starting batteries - higher CCA values), fewer thicker plates (deep-cycle batteris - higher RC values), or a comprimise between the two (multi-purpose batteries). The more plate surface area you have (ie:more plates) the more cranking amperage you can draw from the battery. The thicker the plates the better they can withstand a deep discharge without warping or becoming otherwise damaged.

If you have a small starting battery and discharge it to the point where it will no longer start your vehicle, you've probably caused at least some permanent damage.

Yesterday, after the car had been sitting for about 36 hours (I was playing with the M5), the battery was flat. '07 Fit w/15k miles. I jumped it and let it run for 30 mins or so to charge up. Took it on a short trip and after it sat in my driveway for another hour it was dead again.

Jump started it this morning and took it down to Los Gatos Honda. They put some kind of tester on it and said, "yup, bad battery". Swapped in a new one under warranty and I was good to go.

a battery for a miata should work

Not good enough for canadian winter?
 

I am in a dealership, waiting for the service people to run an analysis on the battery for the third time this month. I've had to jumpstart my car that many times! It's ridiculous how the car is only 16 months old and I have to keep doing this- every time they've told me there is nothing wrong with it. Perhaps it's just too cold here for it to charge properly? How do we get Honda to change this on future models?

Hmm...maybe they did already and I need to get the new one!