Instructions for use: Each products has undergone rigorous testing to ensure the correct voltage, circuit protection, stable current, low self-discharge and CE / FCC / RoHS Certified for safety.About 500 recharge cycles over the life. Do not disassemble, crush or puncture. Do not dispose of in fire or water. If you remove battery for a long time, charge more than 80% at least one time within one months. When using the battery, care should be taken to prevent exposure and moisture.