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Li-ion cell protection from TE Circuit Protection


Rechargeable Lithium-Ion (Li-ion) batteries are everywhere and, if not properly protected, every one of them can cause serious damage if an overcurrent fault condition occurs. TE Circuit Protection’s Barry Brents explains how a PolySwitch PPTC resettable device is placed inside a battery cell or in parallel in a battery pack to protect lower current applications from external short circuits or heating events.

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