We offer different batteries for vaporizer, make sure you check your device for right size batteries. We send brand new batteries safely to you with low charge (about 3.2-3.4 volts).
Important Li-ion Battery Safety Instructions and Warnings:
You must carefully read, and comply with the safety instructions and precautions in this Safety Instructions guide before charging, using your battery. Failure to read, and follow Li-ion safety instructions, and warnings may result in fire, personal injury, and property damages if battery is charged and/or used improperly.
Lithium-ion battery cells may get extremely hot, explode or ignite, and cause serious injury if exposed to abuse conditions.