Product Description | 138.4.2.3 Correct dimensioning> As the current drawn rises, the battery pack warms and the usable capacity is lowered.The ideal operating temperature during discharge is between +20 and +40 °C and mustnot exceed +60 °C even under extreme load.> The maximum short-time current that can be loaded to the battery pack is stated inthe technical data sheets or can be read directly from the battery pack. The value “C”always refers to the capacity value of the respective battery pack.Example:A battery pack with a capacity of 2100 mAh and ”20 C” can be loadedwith 2100 mA x 20 = 42 A maximum.> However, the maximum permissible continuous current is clearly lower. If there are noprecise manufacturer’s specifications, the battery pack should not be loaded with morethan approx. 50 % of the maximum permissible surge current over a long term.8.5 Miscellaneous> Consult an expert when in doubt about operation, safety or connection of the device.> Maintenance, modifications and repairs are to be performed exclusively by an expertor at a qualified shop.> If you have questions which remain unanswered by these operating instructions,contact our technical support service or other technical personnel.9. PRODUCT DESCRIPTIONThe »Xtreme is a pre-assembled quadcopter flight model with four rotors. In theprofessional field, such flight devices are already used for the most diverse of tasks. Thelatest micro processor controlled electronics with position control and acceleration sensorstabilize the »Xtreme. The »Xtreme is an ideal micro multirotor platform with the ability tolift a camera such as GoPro ® , RC Logger PRO, SOCAM® or similar using the optional “RCLogger Aerial Kit” (89064RC).High-quality direct current brushless motors in connection with a specially developedcontrol permit a long, powerful flight operation. The new control and electronic self-stabilisation lead to great flight properties. Different flying programmes ensure that bothbeginners and experts will have fun.You can operate the »Xtreme via:> Stock transmitter> RC EYE OneLINK (89036RC) & Your own transmitter (e.g. Futaba, Spektrum)> PPM (Pulse-position modulation) & Your own transmitterThe »Xtreme can be operated both indoors and outdoors during calm weather conditions.The in-built electronic controls can balance out small undesired changes to the flightaltitude. The low weight of the »Xtreme makes it react sensitively to wind or draughts.You can fly the »Xtreme in three different modes:> Beginner> Sport> ExpertThe model is designed for beginners as well as experienced model helicopter pilots.Tap the model’s full potential through regular practice.