The Li-Po battery is rechargeable with the capacity of 4300mAh specially designed for EVO. It can only be charged with the charger supplied in the EVO package. A fully charged battery can provide up to 30 minutes of continuous flight.
Press and hold the Power Button for 3 seconds to turn on the battery. The Capacity Level Indicators will illuminate and indicate the current battery level.
Press and hold the Power Button for 3 seconds to turn off the battery. If the battery is attached on the aircraft, the LED1 and LED 4 will flash for 5 times to indicate shutdown. Remove the aircraft battery from the aircraft after turning off all the Capacity Level Indicators.
The battery level also can be checked without powering on the battery, press the Power Button for 1 second then release it quickly, then the corresponding battery levels will be indicated by the Capacity Level Indicators as shown below.
Several smart functions added into the aircraft battery will protect and preserve battery life. The introduction below will give you a further understanding for the aircraft battery.