Alternatives uses of battery cells

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mikeymikey
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Alternatives uses of battery cells

Just getting into flashlights.
I collected every single laptop battery pack that I could get hold off and have a decent selection of them now (mostly 18650s).
Besides flashlights, any other safe use for these battery cells? Some sort of motion sensor light in the backyard will be. haven’t checked if lights have low voltage protection. )
Thx

singularity35
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Location: Philippines

I have some that I use on a power bank charger for a mobile phone.

Chuck Roxas