OPTIMA Batteries High Performance 35 RedTop Sealed AGM Car, Truck and SUV Starting Battery, 720 CCA, SAE Terminal, Maintenance Free, Versitile Mounting

Got this for a 2005 Mustang GT. Fit perfectly. It has WAY higher CA and CCA ratings than the Duralast Gold it replaced.I've ALWAYS went with Optima because they last forever. Yes, they are expensive, but they are TOUGH, they don't die on you if you happen to let them drain dead overnight by leaving the radio and lights on for 20 hours or whatever like many batteries do.I'll update if any issues come to plague us, but if you don't see me come back, just know the battery is still doing perfect, even if it's 8 years from now. I may update every 3-4 years and say how it's doing, but I have faith 4 years will be trouble free with an Optima Red Top.I'm just saying, it's worth paying the extra hundred for one of these than saving that hundred and needing to buy another car battery 8 months to 2 years MAX later. These last forever AND they blow the competition away with the cold cranking amp ratings (the important rating). I've used these since 2005 or 2006. I even keep a spare that I've had for 6 years that I keep to bring with jumper cables if I ever need to jump someone off since it's so much easier. I think it may be 8 years old now, actually, lol.Long story short, this is one of the most important components of your vehicle. THIS decides whether you crank and leave or get stuck where you parked. This decides if you run it dead, will it still be good (yes) or will you kill a cell with some other cheaper brand (you will).Spend the money for one of these and then you can forget about worrying about your car battery for YEARS to come.

This battery is a great OEM replacement for my 2006 Mazda RX8. It provides plenty of power to the vehicle for starting, etc. The battery was simple to install using the following steps:-Use a 10mm wrench to loosen the nut that holds the terminal clamp on the negative terminal-disconnect the negative terminal-Use a 10mm wrench to loosen the nut that holds the terminal clamp on the positive terminal-disconnect the positive terminal-Take the old battery out of the compartment it is in and replace it with this new one-connect and tighten the clamp for the positive terminal-connect and tighten the clamp for the negative terminalOne thing about this battery that was a bit of a negative was that it was shorter than the OE Mazda battery. This meant I needed to prop the battery up a little bit so the terminal clamps could be properly fastened. I simply used the cover that came on this battery and put it underneath the battery to give a 1-2inch increase in height allowing the clamps to clear the sides of the battery well.Pros:*Good cranking power*Everything power-wise runs wellCons:*A little short for the stock battery well(-1/4 a star) However this can be fixed by using the terminal cover that came with the battery and placing it underneath the battery inside of the well.Additional Considerations:Make sure you have a wire brush and some terminal cleaner to clean the clamps. Also some kind of electrical-conducting gel may be good to apply when installing the battery.Overall: 4.75/5 stars (>=.5 rounds up, <.5 rounds down) => 5 starsIf you have any further questions regarding the product in my review please leave a comment below and I will get back to you as soon as possible.

The battery itself is awesome. Nice strong battery, gets your car started without hesitation. Seriously, I've never had a battery this good before.The complaint I have about this battery is that the posts are too small and are in an awkward position. If you look at the picture, the posts are toward the front, which would be great. The reality with the one I got was they were toward the back and I had to get cable extenders to get my clamps to the posts. reversing the cabling was not an option. I had to buy shims and different clamps to get this to fit properly. It really does look nice, especially if paired with a black retainer bracket.