Sealed lead acid battery facts for kids
A sealed lead acid battery or gel cell is a lead acid battery that has the sulfuric acid electrolyte coagulated (thickened) so it cannot spill out. They are partially sealed, but have vents in case gases are accidentally released for example by overcharging. They can be used for smaller applications where they are turned up side down. They are more expensive than normal lead acid batteries, but they are also safer.
They use different chemicals than dry cells, so they are rechargeable.
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Cutaway view of a 1953 automotive battery
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A lead–acid battery
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Dryfit A300 gel battery
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Sealed lead acid battery Facts for Kids. Kiddle Encyclopedia.