Description 1. Protected 18650 Li-ion Rechargeable Battery P1835J 2. Minimum Capacity: 3350mAh 3. Typical Capacity: 3500mAh 4. Normal Voltage: 3.7V 5. Quality Li-ion rechargeable cell made in Japan 6. In Built Safety Circuitry 7. Protection Circuit (Against overcharge, over discharge, over current and short-circuit.) 8. 4.2 volts max voltage and 2.5 volts cut-off voltage 9. Over 500 charge-discharge cycles 1. Please charge this battery with a quality li-ion battery charger before first use; 2. Do not keep or use this battery in high temperature or humid environment; Operating Temperature: Charge 0℃~45℃, Discharge -10℃~60℃ Storage Temperature: -20℃~60℃ 3. Do not use this battery if there is weeping, bulging or any other problem; 4. Do not throw this battery into fire or water, or it may fire or explode; 5. Do not crush, hit or impact this battery; 6. Do not disassemble this battery; 7. Keep out of reach of children; 8. Battery will be hot when it works, please take it carefully after use; 9. If this battery has not been used for a long time(>3months), please charge it before using it again; 10. If the electrolyte goes into eyes, please wash eyes immediately and go for a medical treatment.
