Wet cell facts for kids
A wet cell is a cell that contains a liquid electrolyte. Most batteries have a paste electrolyte. Car batteries have a liquid electrolyte. They are inconvenient because the electrolyte can be spilled. Most early batteries had liquid electrolytes. People still use wet cells where they need high power, such as in cars.
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en:Battery (electricity)#Wet cell
Wet cell Facts for Kids. Kiddle Encyclopedia.