AGM Batteries vs. Wet Battery Comparison

Absorbed Glass Mat (AGM)Wet Cell
MaintenanceVery LowModerate
Overcharge ToleranceMinimalSome
Recharge TimeFastAverage
Temperature ToleranceBetterOkay
GassingVery LittleSome
Initial CostHigherLower

Maximizing Your Battery’s Life

AGM Battery Care

  • Avoid allowing charge to completely empty.
  • Unplug when finished charging.
  • Even when not in use, batteries should be stored at full charge (or near full charge) to maximize life.
  • For long-term battery storage, recharge every 6 to 12 months.

Wet Battery Care

  • Regularly check contact plates – add distilled or de-ionized water to cover the plates if the water is low. Do not overfill.
  • Avoid freezing temperatures. Do not charge a frozen battery.
  • Avoid charging in high temperature areas.
  • Charge in a well-ventilated area. (Wet cell batteries produce some hydrogen gas.)
  • For long-term battery storage, recharge every 6 months.