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Discontinuities in charge profile
Authored by: Winston on Mar 14, '03 07:57:52AM

LiIon batteries have a built in circuit that limits overcharging and run-down. Overcharging can cause the battery to overheat (i.e. catch fire) as well as damaging it. Running it down too far also can cause charging problems. Maybe what you are seeing is caused by the protection circuit.

Apparently the protection circuits cause a lot of problems tooccur with "good" LiIons, for example an undercharge circuit that kicks in and won't let the battery charge.

Also, LiIons degrade over time whether you use them or not.

More info on all battery types here:

summary on LiIons here:

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