Kiaisi K-9201 / K-9208 8-in-1 phone and professional Android Phone Battery Activation Charge Board with Micro USB Cable, Kiaisi K-9201 8-in-1 phone Battery Activation Charge for Phone Instructions: Kiaisi K-9201 phone Battery Activation Charge 1, fasten the battery when the battery voltage is lower than 2.5V, digital meter and due to insufficient power supply indicator is not displayed, the normal display is higher than 2.5V. 2. The voltage display to adjust the sound output voltage (power supply maintenance), the higher the voltage, the greater the current, when the table on the right shows battery voltage is lower than or equal to 3V, please repair the power supply output voltage is adjusted to 3.5V the following trickle charge mode with charge 1-2 minutes after turning on the power cord, the right table displays the current charging voltage. 3, if the buckle battery voltage of 3.6V or more displays can be used directly to charge more than 4V, the maintenance of the power supply voltage increase, the left side of the digital table shows the current charge current, the right digital table shows the current charging voltage. 4, For fast charging, note the increase in voltage while the current left display, the maximum can not exceed 2A (2000MA), otherwise it will be automatically protected.