liitokala lii-31S 18650 3100mah 25A 35A 11.5Wh 3.7v Rechargeable Li-ion Battery for led Flashlight $2.25 - $2.50 Min. order: 1 piece vapcell 26800 New Model 3.6v 6200mah li-ion rechargeable Battery Cell Toys Battery Diy small Battery Pack ...
[non-rechargeable/primary] volts. The significant voltage difference 4.2V against 1.5V can be harmful to equipment, such as flashlights, if incompatible [Li-ion] batteries with a greater [4.2V fully charged] voltage are used. To avoid damage, do not mix or use a 14500 battery with any ...