as I know that there are some double or triple A’s batteries that can be recharged and I know that there are some that are non rechargeable and can’t be but can someone please why? Like why if I was to put a non rechargeable double A battery in the device used to recharge a rechargeable double A battery why wouldn’t it work in simpler terms what makes rechargable batteries rechargable but non rechargeable ones not?
In: Technology
The real reason you can’t recharge nonrechargeable batteries comes down to chemistry. Normal Alkaline batteries contain a small amount of water inside of them; when you recharge the battery it has the side effect of chemically splitting the water into hydrogen gas and oxygen gas. This buildup of gasses inside the metal battery case can cause it to rupture and in severe cases catch fire.
Rechargeable batteries either use an electrolyte that doesn’t contain water, or have a catalyst that recombines the hydrogen and oxygen back into water. They need specialized chargers that control the charging rate so the gas doesn’t build up faster than it can be turned back into water.
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