Q:

How can button cell batteries be recharged?

A:

Quick Answer

Button cell batteries that are used in hearing aids, cameras and watches are considered single-use and therefore recharging should not be attempted. Lithium ion coin cell batteries, which are larger and flatter than button cell batteries, can be recharged.

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How can button cell batteries be recharged?
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Full Answer

Button cell batteries have a single cell with a slow self-discharge that allows devices like watches to run continuously for extended periods of time. They are rated between 1.5 and 3 volts and are used in items that do not require high power.

Button cell batteries contain a number of heavy metals and are considered a single-use item that should discarded at designated facilities that support its proper disposal.

Coin cell batteries are often used as the backup for CMOS (complimentary metal-oxide semiconductor), which are the chips that store the time, date and hardware settings in computers, and they are available in rechargeable form.

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