one. Switch instruction
1, the battery is positive to the inside (lamp side), the negative electrode is outside (tail).
2. The switch is at the tail, the switch function is the switch function, and the tap of the switch is the dimming function.
two. Circuit board instructions
1, the store adopts advanced voltage constant current technology, can effectively solve the LED flashlight on the voltage constant current requirements.
2, special tips: a. do not overvoltage use, the voltage does not exceed 4.2V b. The battery is facing the front, do not reverse, otherwise it will burn board c. Pay attention to control the temperature change of the flashlight to ensure heat dissipation d. Non-professionals do not open the circuit board
3, warranty description: Open or handle the circuit board is no longer covered by warranty

Three. Lithium battery instructions
1, lithium battery characteristics: lithium battery and mobile phone battery charging method is completely different; Lithium battery has no memory, can be charged at any time, do not overcharge.
2, the first charge of at least 6 hours, after the green light according to the charger can be, there is no overcharge.
3, special tips to use anti-overcharge, anti-reverse connection, anti-short circuit "three" charger;
4, do not use the battery for a long time, should be fully stored, normally in about three months and then charge and discharge once;