![100mm(3.95in) Width PVC Heat Shrink Wrap Tube 18650 21700 26650 Lithium Battery DIY Battery Pack 3M(9.9ft) Length Blue: Amazon.com: Industrial & Scientific 100mm(3.95in) Width PVC Heat Shrink Wrap Tube 18650 21700 26650 Lithium Battery DIY Battery Pack 3M(9.9ft) Length Blue: Amazon.com: Industrial & Scientific](https://m.media-amazon.com/images/I/51D6eWNGobL.jpg)
100mm(3.95in) Width PVC Heat Shrink Wrap Tube 18650 21700 26650 Lithium Battery DIY Battery Pack 3M(9.9ft) Length Blue: Amazon.com: Industrial & Scientific
How to do a correct test and determine whether a 18650 li-ion is a protected or non-protected battery - Quora
![18650 Battery 2023NewBestselling 9900mAh+Charger 3.7V 18650 Li-ion Batteries Rechargeable Battery for Remote Control Screwdriver _ - AliExpress Mobile 18650 Battery 2023NewBestselling 9900mAh+Charger 3.7V 18650 Li-ion Batteries Rechargeable Battery for Remote Control Screwdriver _ - AliExpress Mobile](https://ae01.alicdn.com/kf/S64b48a56f4c7436fbac44e71fd1c2105I.jpg?width=800&height=800&hash=1600)