cool fishing-jackets battery 7.4v 4400mAh 4-adjustable voltage output

cool fishing-jackets battery 7.4v 4400mAh 4-adjustable voltage output

Parameters:
Rated voltage: 7.4v
Model: LX-KTF01
Working voltage: 3.3v~6.8v
Rated capacity: 4400mAh
Charge cut-off voltage: 8.4v
Charge current: 1200mA
Max output power: 10W Max
Output terminal: DC3.5*1.35*7mm

Operation instruction:
(1) Remaining capacity indication
Press ON/OFF button: 9, 8, 7, 6, 5, 4, 3, 2, 1 to indicate remaining capacity.

(2) 4-level voltage output
When connected to device, press ON/OFF button to control voltage output level:
6.9v - Max.
5.7v - Hi.
4.7v - Med.
3.3v - Low