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Battery Warnings

 

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IMPORTANT  NOTE:  Lithium  Polymer  LiPo)  batteries  are  significantly  more  volatile  than  the  alkaline  ,  NiCd 
and  NiMH  batteries  also  used  in  RC  applications. All  instructions  and  warnings  must  be  followed  exactly  to 
prevent property damage and/ or personal injury as mishandling of LiPo batteries can result in fire.

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By handling, charging or using the included LiPo battery you assume all risks associated with LiPo batteries. If 
you do not agree with these conditions, please return your complete product in new, unused condition to the 
place of purchase immediately.

 

You  must  read  the  following  safety  instructions  and  warnings  before  handling,  charging  or  using  the  LiPo 
battery.

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• You must charge the LiPo battery in a safe area away from flammable materials. 

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• Never charge the LiPo battery unattended at any time. When charging the battery you should always remain 

in constant observation to monitor the charging process and react immediately to any potential problems that 
may occur. 

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• After  flying  /  discharging  the  battery  you  must  allow  it  to  cool  to  ambient  /  room  temperature  before 

recharging. Also, it is NOT necessary or recommended to discharge the battery ‘completely’ before charging 
(  LiPo  batteries  have  no  ‘memory’  and  it’s  safe  to  charge  partially  discharged  batteries  when  using  an 
appropriate charger and settings). 

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• To  charge  the  battery  you  must  use  only  the  stock  included  Charger  or  a  suitably  compatible  LiPo  battery 

charger. Failure to do so may result in a fire causing property damage and/ or personal injury. DO NOT use a 
NiCd or NiMH charger to charge Li-Po battery. 

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• If  at  any  time  during  the  charge  or  discharge  process  the  battery  begins  to  balloon  or  swell,  discontinue 

charging or discharging immediately. Quickly and safely disconnect the battery then place it in a safe , open 
area away from flammable materials to observe it for at least 15 minutes. Continuing to charge or discharge 
a battery that has begun to balloon or swell can result in a fire. A battery that has ballooned or swollen even 
a small amount must be removed from service completely. 

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• Store  the  battery  partially  charged  (approximately  50%  charged/3.85V  per  cell),  at  room  temperature 

(approximately 68–77° Fahrenheit [F] ) and in a dry area for best results.

 

• When  transporting  or  temporarily  storing  the  battery,  the  temperature  range  should  be  from  approximately 

40–100°F.  Do  not  store  the  battery  or  model  in  a  hot  storage  car  or  direct  sunlight  whenever  possible.  If 
stored in a hot garage or car the battery can be damaged or even catch fire.

 

• Do not over-discharge the LiPo flight battery. Discharging the LiPo flight battery to a voltage that is too low 

can cause damage to the battery resulting in reduced power, flight duration or failure of the battery entirely.

 

• LiPo cells should not be discharged to below 3.0V each under load. In the case of the 2-Cell/ 2S 7.4V LiPo 

battery used to power the plane you will not want to allow the battery to fall below 6.0V during flight.

 

The  included  ESC  features  a  ‘soft’  low  voltage  cutoff  (  LVC  )  that  smoothly  reduces  power  to  the  motor 
(regardless of the power level you have set with the throttle stick) to let you know the voltage of the battery is 
close to the 6.0V minimum.

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However, even before this reduction in power , if you find that more than the typical amount of throttle/ power 
is  required  to  cruise  or  climb  you  should  land  the  model  and  disconnect  the  battery  immediately  to  prevent 
over-discharge.

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And  while  it  is  possible  to  continue  flying  the  model  after  the  soft  LVC  occurs,  this  is  NOT  recommended. 
Continued discharging can result in reaching the 5.0V ‘ hard’ LVC which may cause permanent damage to the 
LiPo battery resulting in reduced power and flight duration during subsequent fights ( or failure of the battery 
entirely which is not covered under warranty).

 

RANGER EX — Professional FPV Platform

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Содержание RANGER EX

Страница 1: ... 8 in 2000mm Length 46 5 in 1180mm Motor 3715 1000KV out runner Brushless motor Servo 9g servo 4pcs Metal Gear 9g Servo 2pcs Battery 11 1V 2200mAh 25C Li Po or above SEE YOUR WORLD FROM A NEW PERSPECTIVE PROFESSIONALFPV PLATFORM ...

Страница 2: ... to read and follow all the instructions and warnings in the manual prior to assembly setup or use in order to operate correctly and avoid damage or serious injury RANGER EX Professional FPV Platform 2 16 As the user of this product you are solely responsible for operating in a manner that does not endanger yourself and others or result in damage to the product or the property of others Always kee...

Страница 3: ...store the battery in a temperature range of 40 120o F 5 49o C Do not store battery or aircraft in a car or direct sunlight If stored in a hot car the battery can be damaged or even catch fire Always charge batteries away from flammable materials Always inspect the battery before charging and never charge damaged batteries Always disconnect the battery after charging and let the charger cool betwee...

Страница 4: ...PA2 5 7 Connect the push rod to the servo horn and make sure the surface flat 3 Install the servo horn by screws PB2 15 2 4 Install the Rudder and Elevator as shown in the image and fix it by screws PA2 5 8 6 1 Install the wheel by a screw PM4 30 2 with nuts as shown in the image below 2 Install the landing gear to the corresponding gap under the fuselage and fix it by two screws PM3 15 2 ...

Страница 5: ...o backward 9 Fix the motor to the nylon plate by 4pcs screws KM3 6 4 10 Fix the nylon plate into the corresponding gap of the motor tower and fix both side together by screws PA2 5 8 5 11 Install the servo horn as shown in the image and fix it by screw PA2 15 2 12 Insert a short tube into the push rod then connect it to the servo arm 13 Install the servo arm to the servo and fi x i t b y s c r e w...

Страница 6: ... threaded end of the metal pushrod so you can insert the pin in the OUTERMOST hole on each control horn It may be helpful to insert a flat blade screwdriver not included into the clevis then carefully twist it until it disengages the pin from the hole in the clevis Also it is not necessary to snap the clevis back together until the centering adjustments are complete After connecting the clevises t...

Страница 7: ...he trim lever slightly as needed Also it will likely be necessary to make further adjustments to the position of the trim lever during flight as most surfaces do not end up in exactly the centered position when an airplane is trimmed properly for actual flight but centered is still the best starting point Follow the same steps outlined for centering the rudder to center the elevator as well Also w...

Страница 8: ...e model flight If the C G is too far aft tail heavy the model will be too responsive and difficult to control If the C G is too far forward nose heavy the model will be too stable and not responsive enough In order to obtain the C G specified add weight to the fuselage or move the battery position Check the C G before flying RANGER EX Professional FPV Platform 8 16 ...

Страница 9: ...ammable materials to observe it for at least 15 minutes Continuing to charge or discharge a battery that has begun to balloon or swell can result in a fire A battery that has ballooned or swollen even a small amount must be removed from service completely Store the battery partially charged approximately 50 charged 3 85V per cell at room temperature approximately 68 77 Fahrenheit F and in a dry ar...

Страница 10: ...cally best however it will take some careful management of the charge time and the use of a voltmeter to achieve this voltage If you have the equipment and skills to achieve the 50 charge level for storage it is recommended If not simply be sure to not store the battery fully charged whenever possible In fact as long as the battery will be stored at approximately room temperature and for no more t...

Страница 11: ...r and the servos work normally CAUTION Make sure that you must turn on the transmitter firstly and then you can connect the battery plug If you want to turn off the transmitter you must ensure that the battery of the plane must be cut off first RANGER EX Professional FPV Platform 11 16 ...

Страница 12: ...ot to test fly and properly trim the model before attempting your first flight A proven flyable and properly trimmed model is significantly easier and more enjoyable to fly Please contact your local hobby shop and or flying club to find a more experienced pilot near you After you ve properly trimmed the airplane in calm conditions and become familiar with its handling capabilities you ll be able t...

Страница 13: ...ption would be to try another range check at an alternate flying site After the range check fully extend the antenna Monitor and limit your flight time using a timer such as the one on your wrist watch When the batteries are getting low you will usually notice a performance drop before the ESC cuts off motor power so when you notice the plane flying slower you should land Often but not always powe...

Страница 14: ...ll make the plane bank to your right However when the model is flying toward you moving the aileron stick to the right will make the plane move to your left Of course the plane is still responding the same way it s just that your orientation has reversed This must be kept in mind while learning to fly and is also a good reason to take flight lessons from an experienced pilot To establish a turn up...

Страница 15: ...er once you have become more experienced with your plane you can cruise around and perform slow fly bys with the flaps extended CAUTION If during a rough landing the propeller becomes jammed and cannot rotate the battery and speed control will become very hot if you attempt to add power Immediately move the throttle down to stop the motor If you fail to do this the motor speed control and or batte...

Страница 16: ... 2014 VolantexRC Co Ltd ...

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