how to find out lithium ion 18650 battery which side is positive and negative
Amazon.com: Galaxy SHENMZ 2 Pack Battery for 3.7V 3600mAh Flat Top Battery, Rechargeable, 2 Bay USB Battery Charger for Flashlight, Camera, Small Fan, Sound Equipment.… : Electronics
Protected 3500mAh 10A 18650 Button Top Battery with UL2054 and CB cert – Liion Wholesale Batteries
Don't upvote, stupid question. What are the positive and negative sides for the VTC4's?? : r/electronic_cigarette
Everything You Need to Know About the 18650 Battery