How to test burn time on a lithium battery without damaging it?

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OP
dray_gnv

dray_gnv

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I've had my canister light now for more than a year. I'd like to do a burn test but I understand that running a lithium battery to zero can damage it. What's the best way to do this?
 
The battery has protection circuitry in it for deep discharge, low voltage, high current, etc. so it will shut down if it is near completely discharged. However, you need to know if it will automatically reset when charged or if there is some procedure required to wake it up again. Obviously, you want to know this before a burn test.
 
Every time you charge a lithium battery to "full" or discharge it, you're shortening the life a smidge.

You should still burn test your batteries once a year.
 
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