Type: pointed lithium batteryModel: 19800mAhBattery attribute: brand batteryProduct parameters:1. Currently imported battery cells, voltage 3.7V2. Support overcharge and overdischarge protection, voltage 2.75-4.20V3. Maximum working current: 2.7A4. Diameter 18.250.1mm Length 68.50.1mmRead the following precautions carefully to ensure proper use of lithium-ion batteries.To prevent battery leakage, explosion, fire, etc., please pay attention to the following: Do not put the battery into water or get it wet; Do not use or store batteries near heat sources such as fire or heaters;- Please use the original charger;- Do not reverse the positive and negative poles; Do not connect the battery directly to a wall socket or car cigarette lighter socket; Do not throw the battery into fire or heat the battery;- It is forbidden to short-circuit the positive and negative poles of the battery with wires or other metal objects, and it is forbidden to transport or store the battery together with necklaces, hairpins or other metal objects;- Do not hit, throw or subject the battery to mechanical shock;- It is forbidden to pierce the battery case with nails or other sharp objects, and it is forbidden to hammer or pedal the battery;- Direct welding of battery terminals is prohibited;- It is forbidden to disassemble the battery in any way;- Do not charge the battery in the presence of fire or extreme heat.- Do not put batteries in microwave ovens or pressure vessels;- It is forbidden to use in combination with primary batteries (such as dry batteries) or batteries of different capacities, models and varieties; Do not use the battery if it emits odor, heat, deformation, discoloration, or any other abnormality; if the battery is in use or charging, it should beImmediately remove it from the electrical appliance or charger and stop using it; The battery should be kept out of the reach of children, if a child accidentally swallows the battery, seek immediate medical attention; If the battery leaks or emits an unpleasant odor, it should be removed immediately from near an open flame;Leaked electrolyte may cause fire or explosion; If the electrolyte gets into the eyes after the battery leaks, do not rub, rinse with water, and seek medical attention immediately. Eyes will be damaged if not treated in time.Notice!Do not use the battery in an extremely hot environment, such as in direct sunlight or in a car on a hot day. Otherwise, the battery will overheat and may catch fire (ignition), which willIt will affect the performance of the battery and shorten the service life of the battery.Use the battery only under the conditions described below, otherwise it will degrade battery performance or shorten battery life. Using the battery outside this temperature range mayCauses overheating, explosion or fire.working environment:Charging: 0~45Discharge: -20~60Storage for 30 days: -20~45Storage for 90 days: -20~35When children use the battery, they need to be taught the contents of the user manual and pay close attention to them to ensure proper use of the battery.If the battery leaks and the electrolyte gets on the skin or clothing, immediately wash the affected area with running water, otherwise it may cause skin irritation.Read the instruction manual of the battery to be used, and install and remove the battery correctly.If the device is not going to be used for a long time, remove the battery and store it i