Battery OEM Mazda or OPTIMA

optimas are good. thats what i use

optima blue tops are marine-think of blue water and yellow are deep cycle 2] having the ground LARGER than the power is ALWAYS better in terms of car audio- electrons move negitive to postive , if my amp takes a 4 gauge wire for power the ground gets a 2 guage, this alone has gotten rid of some of my dimming

I have had a red top 34R in my R32 for almost 2 years now, no problems at all.

Red Top, 4 years so far. Survived 3 Portland Oregon winters, a few complete drains, and sites for a week + at a time without use. Way to heavy though.

I ran red top for a little more than five years before it ran out of juice, so I bought another a couple years ago

I bought a optima in 2001 and ran it for 6 years no problems, even though i drained it multiple times. I bought a replacement in 2005, exchanged on warrenty in '06, and i'mlooking for a replacement currently. i know optima was bought out a few years ago i wonder if quality has gone down since then.

have an optima red top it starts the car at -40 weather no problem, only catch is if you kill it the batt will never be the same iv gone through 2 so far in the last 2 years but with 10 year or more warranty who cares.

I go for the best, Optima Yellow Top group size 35 from Johnson Controls. I have owned them before, loved their batteries, a lot of In car Electronics, lights, Sound systems. I prefer Optima Yellow Tops. I installed the new battery, idle issue went away instantly. Driving home that night from work, fire started shooting out from under the hood scoop. Both the fire department and insurance company stated the fire started from the acid in the battery, originating from a single point on the battery. Wiring harness and vacuum lines were toast. Insurance company declared it a total loss.

These Optima batteries are crap. Junk. The new battery that i have had for a year now installed in my EOS (that replaced the batteries that were left continually connected to the optimate charger) were tested at Advantage auto parts today and the tester said they only had 180 CCA out of the 750CCA that the battery is rated at. WTF-- JUNK !! I am so frustrated with tis Optima JUNK.

My dad put an Optima red top in his Porsche 930. He used the exact trickle charger you pictured for storage and because the car is driven only a couple of times per month in the summer. The battery was in there 2 years and I had to scramble late Friday night to install a replacement after it wouldn't start at the gas station (friendly attendant helped me bumpstart it). The battery stopped taking a charge.