09/04/2026
Reserve Capacity is the rating that tells you how many minutes a fully charged battery can sustain a 25-amp load at 80 degrees Fahrenheit before dropping below the minimum voltage. In plain terms, it's how long your car can keep running essential systems if the alternator or charging system fails while you're driving.
Think headlights, windshield wipers, the ignition system, and the defroster on a cold, dark night. It's not a feature people think about until they need it, but it can be the difference between making it home and being stranded on the side of the road.
Prepared for the worst. Ready for anything.
Want a battery with strong reserve capacity? Our team can help you find the right fit. Call 905-549-4454 or visit gnbsystems.com today.