Toyota 4Runner Battery

Toyota 4Runner Battery
SponsorOPTIMA Batteries
LocationKissimmee, Florida
DateMay 21, 2021
Toyota 4Runner owners over the years have had the luxury of having several different battery size options available to them, depending on the year of their 4Runner. Starting with the 1984 model year, 4Runner owners have a choice between two OPTIMA REDTOPs, the Group 25 or 75/25 or the YELLOWTOP Group 75/25. The OPTIMA REDTOP is a great choice in nearly every application, offering superior cranking power and current flow. However, if your 4Runner has significant electrical accessories, like a winch, alarm or aftermarket stereo, then the YELLOWTOP, designed for both starting & deep-cycle use would be the best choice. 

Those battery sizes will be a common option throughout the first two generations of Toyota 4Runners. However, the 4Runners starting in the 1990 model year, will also have several additional battery sizes to choose from. The Group 34 batteries are physically larger than the Group 25 batteries and will typically offer more cranking power and reserve capacity than their REDTOP or YELLOWTOP Group 25 batteries. That includes both the Group 34 or 34/78 batteries, which have additional side terminals not present on the Group 34 batteries.

When Toyota 4Runner owners move into the third generation in the 1996 model year, the battery replacement options change and scale back to either the Group 34 REDTOP or the Group 35 REDTOP or YELLOWTOP. The Group 34 REDTOP is larger than the 35 and will offer more cranking amps, but like the previous generations, if your 4Runner is what would be considered a "deep-cycle" application, we would recommend the Group 35 YELLOWTOP.

As newer vehicles hit the road, electrical demands from the factory have increased significantly and 4Runners are no exception. Moving to the fourth generation 4Runner in the 2003 model year, the Group 35 batteries remain an option, but they are also joined by the larger, more-powerful D27F YELLOWTOP. It's actually unusual for the D27F YELLOWTOP to be an option for light trucks, but 830 cold cranking amps and 66 Ah of reserve capacity will provide more than enough power for just about any application. That big Group D27F YELLOWTOP remains an option through the 2009 model year.

As we move into the most-recent generation of Toyota 4Runner (as of this writing) in the 2010 model year, the choices go back to just the Group 35 REDTOP or D35 YELLOWTOP, as is the case with the 2015 4Runner pictured above. The same applications apply as previous generations, with the REDTOP being the choice for starting & normal use and the YELLOWTOP being the go-to battery for dual-purpose starting & deep-cycle applications.

One final suggestion we'll leave you with is that if you don't drive your 4Runner on a daily basis or only drive it seasonally, it would be a good idea to keep your battery topped off and ready to go with a quality battery maintenance device. Either the OPTIMA Digital 400 or Digital 1200 are great options, but if you purchase an OPTIMA battery and Digital 1200 from us at the same time, we will add a year of warranty coverage to your battery.