If you are going to spend the extra money for a Red Top, (about double a regular battery), you might as well then spend slightly more for the Yellow Top. That is what I put in our Sienna. With all of the electronic stuff, the OEM battery kept dying. Never had the problem again, even with the entertainment system, power doors, HID headlights, etc. I can power everything for hours without running the engine; and then start right up. With the OEM battery, if you left the radio on for 10 minutes, then opened and closed any of the power doors, she wouldn't start. Off-roaders like spirals because they can work at any angle, even upside down. I've got a Exide Orbital in the VX. If, you don't have any extra power needs, a conventional battery might be adequate, though.