When Should You Replace 18650 Batteries?
A good-quality 18650 battery typically lasts between 300 and 500 charge cycles, depending on the frequency and intensity of use. Here's when to consider replacing your battery:
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It doesn’t hold a charge as well as it used to
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The battery gets unusually hot during use or charging
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Visible damage or a torn wrap
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You notice reduced vape performance or shorter usage time
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The battery has been stored for a long time without use
Rule of thumb: If your battery shows any signs of wear or degradation, it’s better to replace it than to risk an incident.