User manual
15 
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2.1.3 Aircraft Battery 
The EVO Ⅱ’s all-new, custom-designed rechargeable Li-Po battery features high 
energy density and capacity. It should be charged exclusively using the supplied 
charger. 
  Basic Functions 
1 
Aircraft Battery
① Removal Button 
② Battery Level Indicators 
③ Power Button 
3 
 
Turning On the Battery 
Make sure the battery is off before attaching it to the aircraft. After attaching it, press 
and hold the Power Button for 3 seconds. The battery level indicators will display 
the current battery level.
  Turning Off the Battery 
Press and hold the Power Button for 3 seconds to turn off the battery. If the battery 
is attached to the aircraft, the LED 1 and LED 4 will flash 5 times to indicate that the 
battery is turning off. Once all Battery Level Indicators have turned off, remove 
the aircraft battery from the aircraft.
  Checking the Battery Level 
To check the battery level without powering it  on,  press the  Power Button for 1 
second, and then release it quickly. The LEDs will display the current battery level 
as shown below. 










