FAQ's
Why is a used coin battery thicker than a new coin battery?
Why has my battery's operating time decreased?
Why isn't the appliance working after I replaced the batteries?
Why isn't my device working after I replaced the coin lithium battery?
Why does the battery show a negative voltage when tested with a voltmeter?
Why does my coin battery have a low voltage reading on a voltmeter?
Why isn't my appliance working properly even though the batteries are fully charged?
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