Battery ODYSSEY or Deka

I've been using an Odyssey 925 in the Miata with no issues. It gets driven mostly on the weekends and a few times during the week but stays on a B&D 2 amp tender when not driven. I've had this setup for about 6 months so far and it works great for my particular situation with a 3rd car.

Deka aka East Penn is the best battery manufacturer out there. They dont leak as much, they last typically 3-6 years depending on circumstances

The Odyssey PC680 is probably the best battery out there, if you can make it fit. I'd stay away from lithiums, you buy those when you are looking to save weight. For reliable low temperature operation, stick with a lead acid thats had decades of development.

I'm using Deka. But it's a good choice. I haven't any problems with it.

Deka batteries are still good quality. They are somewhat harder to find than other brands.

Fall 2016 Update: I just installed a new battery. It is a Deka Group 47 AGM. Cost was about 135$ at Battery Mart, 20$ more than the standard battery the store offered. It is odd in that the carry handle is square to the battery length. The specs say it weights 37-1/2 lbs. 600 CCA at 0 F. Two minor things: The battery foot flange is not thick enough to match the battery holding channel or the holding clamp. Some sort of wedge needs to be used. There are probably height adapters or spacers sold for that. Second, the hood release cable will need to run on top of the battery corner, unless you slide the battery out toward the radiator more than I want to.

I've been buying Deka batteries for awhile now and they have been great to me as a customer.

I just ordered a Deka EXT20L, from what ive read everyone loves it. At $87 from Lowes its worth the gamble. Its a sealed AGM battery so it can be mounted anywhere, ill be putting it under the rear seat.

I used straps like the first link when I had an Odyssey battery a few years back. Eventually went back to an OEM one but the straps were an easy solution

I used Odysseys PC-680 on other cars, particularly on Evos. They weight about 15lbs and they free up spaces dramatically but the reliability is awful. I went through 3 of them once. They will start the car with a little bit of difficulty but don't try to start the car with the A/C , the radio etc because they can't.