DJI Phantom 2 User Manual - Manual (Page 22)

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80%~90%
70%~80%
60%~70%
50%~60%
40%~50%
30%~40%
20%~30%
Less than 20%
4.5 Correct Battery Usage Notes
1. Never plug or unplug the battery into the aircraft when it is powered on.
2. The battery should be charged in an environment that is between 0 ℃ to 40℃, and be discharged in an
environment that is between -20 ℃ to 50℃. Both charging and discharging should be in an environment
where the relative humidity is lower than 80%.
3. It’s recommended to charge and discharge the battery thoroughly once every 20 charge/discharge cycles.
Users should discharge the battery until there is less than 8% power left or until the battery can no longer
be turned on. Users should then fully recharge the battery to maximum capacity. This power cycling
procedure will ensure the battery is working at its optimal level.
4. For long term storage please place the battery with only a 40~50% capacity in a strong battery box
securely. We recommend discharging and charging the battery completely once every 3 months to keep it
in good condition. The capacity should be varied in such a cycle (40%~50%) —0%—100%—(40%~50%).
5. It’s suggested you purchase a new battery after you have discharged your current battery over 300 times.
Please completely discharge a battery prior to disposal.
6. It’s suggested that you purchase a new battery if the current battery is swollen or damaged in any way.
7. Never try to recharge or fly with a battery that is swollen or damaged in any way.
8. Never charge the battery unattended. Always charge the battery on a non-flammable surface such as
concrete and never near any flammable materials.
9. Safety is extremely important and users can get more information in the DISCLAIMER.