What is a sealed battery?
A sealed battery is one that is not designed to vent to the atmosphere, under routine conditions. A rechargeable flashlight battery is an example of a sealed battery. Sealed batteries do not require the addition of water or other servicing. Sealed batteries tend to be more expensive than flooded batteries, and require more sophisticated charging systems. They are also typically capable of delivering higher currents without damage.
A sealed battery is one that is not designed to vent to the atmosphere, under routine conditions. A rechargeable flashlight battery is an example of a sealed battery. Sealed batteries do not require the addition of water or other servicing. Sealed batteries tend to be more expensive than flooded batteries, and require more sophisticated charging systems.