Li-ion Batteries may explode if you do not charge or discharge them properly. 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 4.20 volts.
Users must have knowledge on how to charge and discharge Li-ion batteries before making Li-ion Battery Packs. We are NOT responsible for any damage that is caused by the misuse of Li-ion Batteries.
It is not a protected battery.