Efest IMR 18650 2000mAh Flat Top 3.7V Rechargeable LiMn Battery
The safe chemistry of LiMN means a reduced risk of venting with flame or explosion. Due to the safety inherent in IMR safe chemistry batteries there is no protection circuitry added or built in. This provides a slightly shorter battery length to enable a good fit in most mods. To ensure longevity, it is not recommended to allow the battery to discharge below 2.5V.
** Please note that due to their inherent safety, IMR cells don't have a protection circuit built in. They should never be discharged below 2.5 volts or cycle life/performance will be reduced. Maximum charge voltage is 4.25 volts.