Hi everyone.
I tried to make this as simple as possible while still getting key saftey and use points across. If you have any questions or comments please share.
https://youtu.be/6M9Gy1_Ckz4
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Learn the basics of using lithium-ion batteries in flashlights. Charging and discharging safety, plus brand recommendations for cells like 18650, 26650, RCR123, 14500, and more.