LIR 18650 battery $3.05 + 2nd 50% @ tmart

[Werner]

Welcome to the forum

Don’t worth it.
You can get brand batteries below 5$…
Not to mention laptop pulls.

Check this

18650 batteries dying in storage

I have several protected Ultrafire 18650 batteries in service, and keep a few new and charged as spares. I went to use two of the new spares and they were dead as a doornail. These were in storage about 6 weeks. Is this common? Should I switch to another brand or unprotected batteries?