- STD means standard wet or flooded lead-acid battery, - AGM means Absorbent Glass Mat lead-acid battery, ... By setting the lead-acid battery type, advanced battery chargers charge these lead-acid batteries to their 100% capacity, avoiding overcharging and undercharging.

What is the difference between AGM and standard?

AGM batteries generally last longer than standard lead acid batteries. Because of their low self-discharge rate, AGM batteries also last longer than their flooded counterparts when not in use. A well-maintained AGM can last up to 7 years, while flooded batteries typically last around 3-5 years.

How do you tell if your car battery is STD AGM or gel?

You'll feel the type of liquid lead-acid battery has a wiggle after it's heavily shaken. The liquid center generally continues to move for a while, even if the battery is sealed. It is exactly the opposite. If they are a gel-filled battery or an AGM lead-acid battery, they won't wiggle after the shaking.