You do not need a bigger size in dimensions or it will not fit in the stock area. You can however buy a battery with more cold cranking amps (CCA). Buy a battery with the most CCA you can find. Anyplace that sells batteries can help you choose. You may have to visit more than one store to find a battery with more CCA than your stock battery.
They need to be at 700 cca. I recently had my battery changed and te AAA guy said that I had the wrong size battery in the car (I had 600 cca).
Group size 51.
Anyplace that sells batteries can tell you the correct size battery you need and sell you one that will fit.
The battery for all 2007 Hyundai Accents is a "group 35". However, any battery you buy from an aftermarket source is not going to fit properly in the rear of the battery tray when bracketed down from the front. The battery will not be wide enough front to back to fit securely and you run the risk of the battery tipping forward during sudden braking or frontal impact. You will need to go to the dealership for the proper fitment for your 2007 Hyundai Accent. Figure spending approximately $100 for the battery before installation.
BCI Group 35 battery, should have at least 420 CCA.
A "Group 42" battery
2032
51R
cr2032
what size of car battery do i need for a 2003 buick lesabre
35 R, type battery.
put the bigest battery that will fit