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Graupner - Polaron AC/DC 240W 7S 3

Graupner - Polaron AC/DC 240W 7S 3" Color and Touch TFT (Silver)

Graupner - Polaron EX Combo 7S 3" Color and Touch TFT (Silver)

Graupner - Polaron EX Combo 7S 3" Color and Touch TFT (Silver)

Special Price $459.99 was $479.99
Availability: In stock

Graupner - Polaron EX Combo 7S 3" Color and Touch TFT (Silver)





  • Sleek silver color
  • Optimal space saving design
  • Friendly 3.0” color and TFT LCD touchscreen
  • 400W at 24V, 220W at 12V per channel
  • Charges LiPo, LiLo, LiFe (up to 7 cells), NiCd, NiMh (up to 14 cells), Pb 1-12 cells
  • Discharge current 60W per channel
  • Supports high voltage LiPo battery charging
  • Support for parallel charging of multiple batteries on a single channel
  • 20 memory battery profile channels for each charge port (total 40 memories)
  • USB data port for firmware updates and PC charger monitoring
  • External USB charge port for tablets or smartphones
  • Built-in servo and sensored motor tester
  • Supports tire warmer accessory (P/N S8350 sold separately)


  • Input power (AC 100~240V/50~60Hz)
  • Temperature range (0~40°)
  • Built in protection (Short circuit/ Overload/ Over voltage/ Over power)
  • Backside On/Off switch
  • Cooling fan and Internal circuits to control heat
  • Built in USB connector for multiple device’s (5.0V, 1.0A)
  • Short circuit detection
  • Easy to carry
  • Capable of docking with Polaron EX/PRO/EX1400 Chargers
  • Easy to check voltage and current in real time from LCD screen
  • Outdoor temperature sensor to check outdoor temperature in a screen


  • Polaron EX charger
  • Polaron Switching Power Supply
  • AC Input Cable
  • EH to XH 7S Adapter Board and 7S Cable
  • USB Cable
  • DC input cable
  • Temp Sensor x 2
  • Charge Cable x 2
  • Alligator Clip x 2
  • Charger Stand
  • Manuals




Charge multiple batteries simultaneously with the Graupner Polaron EX dual-charger, for a grand total of 800W.  The beautiful TFT LCD touchscreen gives the Polaron EX a user-friendly interface. Automatic setup provides optimal charge profiles, ensuring efficient and safe charging – simply enter the battery type, cell numbers and capacity information and the Polaron EX will do the rest!  Eliminate the need to re-enter battery information by using up to 20 different memory profiles – just select the appropriate battery profile and press CHARGE. Prolong the life-cycle of your batteries by discharging them and/or placing them in Store Mode when not in use.  Safe handling and monitoring is easy when the Polaron EX is attached to the supplied balancing boards and when used with the enclosed temperature sensors that carefully monitor high charge rate batteries.    

Personalize your look with the silver casing.  Stay informed on a desktop or laptop computer via the USB connection by monitoring the charging process or upgrading the firmware with our free Graupner Update Studio.  The Polaron EX excels at bringing new life to your batteries and hobby experience!




The Graupner Polaron Switching Power Supply has been specially designed with a genius side-docking power system that eliminates the need for external connecting cables, allowing a seamless coupling to the Polaron EX.  The user-friendly LCD screen keeps you informed of integral real-time information regarding consumed current, voltage, and charging environment temperature. 


Charge additional devices simultaneously with additional output connectors, and the frontal USB port provides plenty of power to charge your USB devices!  The Polaron Power Supply is the perfect staple for your hobby workshop.




Power source

11-28V External DC Power Supply (Docking system)


TFT 3.0” LCD Color Touch screen

Battery Type & Cells

NiCd, NiMH / 1~14 cells / each channel

LiPo, LiFe, LiIo / 1~7 cells / each channel

Pb / 1~12 cells (2V/cell) / each channel


2 Channels (400W x 2CH = 800W)

Charge Current

0.1 ~ 20.0A (100mA steps) / Max. 400W-24V, Max. 220W-12V

Discharge Current

0.1 ~ 10.0A (100mA steps) / Max.60W


Discharge / Charge to Discharge / Discharge to Charge

Balancing current

Max. 350mA


USB 5V output (5.0V 2.5A ) / USB B-Type

Sub Function

Servo Test, Sensored Motor Test, Warmer

Firmware upgrade

External Mini USB device

PC communication

Data Monitoring and Logging


English Default, other languages with firmware update

Cooling system

x 2ea Dynamic Cooling Fan

1.97 x 1.97 x 0.39 in

50 x 50 x 10 mm

Ext. Module socket

Futaba 3P socket

Motor Test socket


Servo Test socket

Futaba 3P socket


Each channel 20 memories (20 x 2CH = 40 memories)

SMPS Docking Terminal



3.47 x 8.00 x 7.73 in

88.2 x 203.4 x 196.3 mm


48.25 oz (3.01 lbs)

1368 g


Input power

AC 100-240V

Output voltage

DC 12V

Output current

Max. 30A (Continuous current: 25A)

USB connector

5.0V 1.0A

Output connector

Front 2ch

Side 1ch

Cooling Fan

1.57 x 1.57 x 0.39 in

40 x 40 x 10 mm


0.79 x 7.66 x 7.85 in

55 x 194.6 x 199.4 mm


B/W Backlight LCD Display


42.79 oz (2.67 lbs)

1213 g

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