Battery Health
Can You Load Test an AGM Battery?
Yes, you can load test an AGM battery. Learn what a load test reveals about its condition, how to run one safely, and when to replace it.
A battery that fits your vehicle and starts on cold mornings
We sort car, truck and SUV batteries by group size, cranking power and type, so you can match the one under your hood. Pick a group size, look up your vehicle or check whether your old battery is really on its way out.
Latest guides
Types and BrandsIs an AGM Battery a Gel Battery?
Is an AGM battery a gel battery? No. AGM holds acid in glass mats and gel suspends it in silica, so charging and fit differ between the two.
- Battery Health
Can You Jump-Start an AGM Battery?
Yes, you can jump start an AGM battery when it's low. Learn safe cable order, voltage checks and why a deep discharge needs a charger.
Types and BrandsIs a Marine Battery an AGM Battery?
Is a marine battery an AGM battery? Not always. Marine batteries come in flooded, AGM and gel builds, and AGM suits many boats and RVs.
Battery HealthWill a Car Alternator Charge an AGM Battery?
Yes, a car alternator will charge an AGM battery when the charging voltage is right. Learn what AGM needs, how to check it and when it falls short.
Types and BrandsWhat Does AGM Stand for in an AGM Battery?
AGM stands for Absorbed Glass Mat. Learn what that means in a car battery, how AGM differs from flooded lead acid, and when you should choose one.
Group SizesHow Much Does an H6 AGM Battery Weigh?
An H6 AGM battery weighs about 45 to 50 pounds. See why AGM packs on the pounds, how weight tracks capacity and CCA, and how to plan the swap.
Types and BrandsDoes an AGM Battery Need to Be Vented?
Does an AGM battery need to be vented? Yes, AGM batteries still vent gas and need a safe path out. Learn how the vent works and what to check.
- Battery Health
Can You Charge an AGM Battery With a Regular Charger?
Can I charge an AGM battery with a regular charger? Yes, if the charger has an AGM or sealed setting and the right voltage. Here's how to do it safely.