DOUBLEPOW 3.7 V 18650 lithium battery 4400mah 6000mah 10500mah Rechargeable battery pack,monitoring equipment, toys, protection board Product description: Nominal capacity: 10500mAh/6000mah/4400mah Product size: 66.5*18.7*55.3mm Voltage: 3.7 V Standard weight: about 140g The battery pack is widely used in headlights, miner's lamp, flashlight, searchlight, loudspeaker (loudspeaker), wireless monitoring equipment, medical equipment, instrumentation, traffic signs, portable small appliances use of common-sense lithium electricity: 1. You should use a 4.2 V Li-ion battery charging standard charger. 2. The prohibition of large discharge current. 3. It is prohibited discharge, single voltage battery should not be less than 2.5 V. 4. It is strictly forbidden to disassemble, short circuit of batteries, probably caused by a short circuit in the fire. advantage of using lithium electricity: 1. Small volume, light weight, large capacity, environmental protection, no memory effect. 2. It is the power supply for portable electronic devices, but the most delicate, lithium-ion batteries in use, note the following points. caveat: Do not allow reverse charging, the battery should be accurate polarity connection, not reverse. Do not allow short circuit, otherwise it will cause permanent damage. Batteries can not be used under extreme conditions, such as: limit temperature, depth cycle, extreme overcharge and overdischarge. Store the battery in a cool, dry place. If a large number of batteries are stored or shipped, the battery must be discharged first. Do not solder directly to the battery. If the battery noise, high temperature, leakage and other abnormal circumstances, please stop using immediately. Do not put into fire or try to disassemble, the battery may burn or produce harmful substances. Do not allow the old battery or half of the battery with the new battery mixed use, otherwise it will produce over-discharge. Do not cut the casing and remove the battery from the casing. Do not allow the battery to be placed in the water.

Precautions: The battery should be charged before use. Charging method Press to charge with the appropriate charger. The battery should be sealed and used, should provide the appropriate ventilation device, otherwise the battery may produce hydrogen, in the case of a fire source will cause an explosion. Do not attempt to separate or withstand the battery pack and may cause the battery to heat, flush, spill alkaline electrolyte will damage the skin and eyes will also corrupt the clothes. Keep the battery away from the child and, if swallowed, contact your doctor immediately. When the battery is not in use, it should be removed from the device. When the first use of new batteries or long-term use after storage, before use to be fully charged. When the battery is hot, do not touch until it cools down. When the battery is used, it is found that the energy should be turned off when the energy is reduced to avoid overdischarge. When you pull out the battery pack, you should hold the battery pack terminal and not hold the wire. After the battery is used, if the battery is hot, before recharging it can be placed in a place where there is no direct sunlight.