13-Apr-24 - 06:42 PM

Thermal Circle Text - Thermal Circle 48

Written by Hayden Daley - 27 April, 2022.

Welcome to this edition of the Thermal Circle. In this edition we look at some Model Flight products available in country at this time. Please enjoy!!! Many thanks to Mike O’Reilly for allowing these products to be put online.

Available from:

Ultra Power 240AC Plus 240w Four Output AC/DC Charger with 2x XT60 Charge Leads, UP240ACPLUS


  • Four independent channels, charge 4pcs batteries at the same time
  • Delta-peak sensitivity (NiMH/NiCd)
  • Individual cell balancing charge & discharge
  • Battery meter function
  • One button control factory setting
  • Data storage (10 profiles in memory)
  • USB Port for PC Control & Firmware Upgrade

The Ultra Power 240AC Plus is a rapid charger with a high-performance microprocessor and specialized operating software. It has 4 channels and a built-in power supply, support AC input or DC input.

Optimised Operating Software

UP240AC Plus features the AUTO function that set the feeding current during the process of charging or discharging. Especially for lithium batteries, it can prevent overcharging which may lead to an explosion. It can disconnect the circuit automatically and alarm once detecting any malfunction. All the programs of this product were controlled through two-way linkage and communication, to achieve maximum safety and minimize the trouble. All the settings can be configured by users.

Balancing Individual Cells For Battery Discharging

During the process of discharging, UP240AC Plus can monitor and balance each cell of the battery individually. An error message will be indicated and the process will be ended automatically if the voltage of any single cell is abnormal.

Adaptable to Various Type of Lithium Battery

UP240AC Plus is adaptable to various types of lithium batteries, such as LiPo, LiIon and the new LiFe series of batteries.

Fast and Storage Mode of Lithium Battery

Purposes to charge lithium battery varies, 'fast' charge reduce the duration of charging, whereas 'store' state can control the final voltage of your battery to store for a long time and protect the battery.

Cyclic Charging/Discharging

1 to 5 cyclic and continuous process of charge > discharge or discharge > charge is operable for battery refreshing and balancing to stimulate the battery's activity.

Re-Peak Mode of NiMH/NiCD Battery

In re-peak charge mode, the charger can peak charge the battery once, twice or three times in a row automatically. This is good for making certain the battery is fully charged, and for checking how well the battery receives fast charges.

Data Store/Load

The charger can store up to 10 different charge/discharge profiles for your convenience. You can keep the data pertaining to the program setting of the battery of continuous charging or discharging. Users can call out these data at any time without any special program setting.

Terminal Voltage Control (TVC)

The charger allows the user to change the end voltage.

LiPo Battery Meter

The user can check the battery's total voltage, the highest voltage, the lowest voltage and each cell's voltage.

Maximum Safety

Delta-peak sensitivity for NiMH/NiCd battery: The automatic charge termination program based on the principle of Delta-peak voltage detection. When the battery's voltage exceeds the threshold, the process will be terminated automatically.

Automatic Charging Current Limit

You can set up the upper limit of the charging current when charging your NiMH or NiCd battery, it is useful for the NiMH battery of low
impedance and capacity in the 'AUTO' charging mode.

Capacity Limit

The charging capacity is always calculated as the charging current multiplied by time. If the charging capacity exceeds the limit, the process will be terminated automatically when you set the maximum value.

Temperature Threshold*

The battery's internal chemical reaction will cause the temperature of the battery to rise. If the temperature limit is reached, the process will be terminated.

*This function is available by connecting an optional temperature probe (sold separately).

Processing Time Limit

You can also limit the maximum process time to avoid any possible defect.

What's in the box?

  • Ultra Power 240AC Plus Charger
  • 2 x XT60 Charge Leads
  • 2 x Balance Boards
  • Instruction Manual
  • Power Adapter


Input voltage

AC 100~240V – AU compliant
DC 11.0-18.0V

Charge power

2x120W or 4x60W (240W)

Discharge power

2x10W or 4x5W (20W)

Charge current range

0.1~12.0A ( 2x120W version)
0.1~6.0A ( 4x60W version)

Discharge current range

0.1~5.0A ( 2x120W version)
0.1~2.0A (4x60W version)

LiIo/LiPo/LiFe cell count

1~6 series

NiCd/NiMH battery cell count

1 - 15cells

Pb battery voltage

2V~20V (1-10cells)



Available from:

Spektrum SMART LiPo Battery Checker and Servo Driver

The Spektrum XBC100 Smart Battery Checker is a must have tool for any pilot or drivers pit box. More than a battery checker, it features a built-in cell balancer, integrated servo tester and driver, and Spektrum Smart battery connectivity.


  • Battery checker with built-in cell balancing
  • Advanced Servo testing feature helps with model setup
  • Spektrum Smart battery technology allows users to take advantage of Smart Battery features
  • Easy to read full-colour display
  • Qualcomm 3.0 compatible USB power port with Quick Charge for compatible Android and IOS devices (up to 12v and 2 amps)
  • Update port for easy access to updates and new features

Product Information

When used with a Spektrum Smart battery, you will be able to see and adjust many of the settings only available with a Spektrum Smart charger. This includes one connection for balance and battery level checking and providing records like the number of cycles, internal battery temperature and exception reports. You can even adjust Smart battery settings right from the XBC100.

The XBC100 also features a Qualcomm 3.0 USB charge port, giving you an easy way to keep your mobile device and Spektrum Smart Transmitters charged when USB power ports are scarce. Better yet, the XBC100 gives you the ability to better set up and test your models with the built-in servo tester! Centre and test your servo endpoints easily with the integrated PWM output port.

Finally, all of this is displayed on a full-color IPS LCD screen that is designed to be easy to read in direct sunlight and is accessed via a user-friendly touch interface.

More than a Balance Checker

Pilots and Drivers can stay better informed about their Lipo, LiHv, LiFe and LiIon Batteries with the Spektrum XBC100 Smart Battery Checker. With the Easy to read full colour IPS LCD display, quickly see the battery percentage, cell balance, and be notified of abnormal conditions. And if your battery cells are out of balance, the XBC100 can conveniently balance each of your Battery cells to within ±0.005V accuracy.

Smart Battery Connectivity

The XBC100 gives Smart Battery users a simple to use battery checker that gives all the benefits of a balance checker with just one connection of the iC3 connector. And when connected to a Smart Battery, users can check all the integrated parameters such as the number of cycles, events such as over-discharge and overheating, as well as adjust smart battery settings like auto storage timer and preset charge current.

Integrated Servo Tester

Built into the XBC100 Smart Battery Checker is a helpful PWM out port that is facilitated to be used as a Servo tester. Easily check your control ranges on any modern servo or ESC. Users can Test for binding and current draw right from the checker, no special inline meter required.


Working voltage


Input voltage 1s


Input voltage 2-8S


Battery cells


Voltage measurement accuracy

±0.005V @ 4.2V

Balancing cells accuracy

< 0.005V

Support USB charging

QC 2.0 / 3.0, BC1.2, Maximum output 12V/2A

Support smart battery

Charging and discharging setting, read battery info and usage history.

Supported Batt. Type

LiHv (1-8S) / LiPo (1-8S) / LiFe(1-8S) / Lilon (1-8S) / NiMH/Cd(1-10S)


2.4?320×240 260,000 color IPS LCD


80 X 55 X 19 mm



Operating Temperature


Working Humidity

10%-90%RH (noncondensing)

Storage Temperature


Storage Humidity

5%-90%RH (noncondensing)

Servo PWM Output Hz

1520uS = 50Hz / 760uS = 333Hz

Available from:

Spektrum Smart S1200 DC Charger, 1x200W

The Spektrum™ S1200 Smart Charger is the first DC smart charger to feature Spektrum Smart Charging technology. Small and portable, this 200W charger features the brand new Spektrum IC3™ connector that delivers a robust connection that also reads vital battery content that relays to a bright LCD color display to clearly showing you how many charge cycles you have on the pack, and much more.


  • Ideal for quick charging larger batteries with a cooling system that charge efficiently and at safe temperature levels
  • The charger automatically identifies the battery voltage, capacity and chemistry when combined with Spektrum Smart Batteries. This ensures the correct settings are used for recharging which rules out the possibility of over/under charging
  • The bright display on the 2.4-inch colour screen shows all your vital information even in bright sunshine
  • A 5V 2A integrated USB port gives you the option of powering up other devices like your phone, another monitor etc.
  • With a sleek profile the intuitive touch wheel interface allows for simple navigation on all charger settings along with being small enough to transport easily
  • New IC3 and IC5 connectors
  • Backwards compatible with EC3 and EC5 connectors

Product Information

Smart Technology Overview

Spektrum Smart technology is about offering a higher connection to your hobby. It’s a connection that puts you in complete control, makes you more aware and more confident about the capability of your equipment—all the while making vital components of your model easier to use than ever. The combined result is a sense that will make you wish everything about your hobby was “smarter.”

For all radio control hobbyists that are looking for a better way to charge batteries, Spektrum Smart Chargers and Smart Batteries combine for an intuitive charging experience that results in a simple, connected, and safer charging experience. Spektrum Smart Charging virtually eliminates the hassle from charging your LiPo batteries. This is made possible by an integrated microchip on each Smart battery that communicates with your Smart charger to automatically determine the best charging settings. Plug it in, and just press start. While all hobbyists will enjoy this simple experience, advanced hobbyists can take advantage of unique data such as cycle count, unhealthy activity like overcharge and discharge, battery temperature, C rating and much more, all saved within each battery. Additionally, automatic discharge to storage ensures a better, and healthier, lifespan for your batteries.

Smart Charging Technology

When connected to a Spektrum Smart Battery, unique parameters and health of your LiPo battery upload from the Smart memory microchip integrated into the battery. Through the charger, you can set and record preferred settings, such as charge rates and self-discharge options, so that all you have to do to charge the pack is press the “Start” button. Smart technology will take care of the rest. Every Smart LiPo charger is factory assembled with the next-generation IC3™ output connector that utilizes a data transfer pin to display saved battery information directly on the LCD screen.


Preset charge, discharge, and storage parameters are automatically relayed from your Spektrum Smart Battery making charging as simple as pressing the “Start” button. The charge rate of individual batteries can be user customized allowing you to take full advantage of packs with faster charge ratings. The integrated microchip on each battery will remember the last charging rate you set, so the next time you plug it in, these settings will automatically populate so all you have to do is press “start.” Another feature that the Smart microchip allows is a single-connection balance charge. When you plug in your IC3 or IC5 battery, the individual cell voltage is automatically relayed to the Smart charger and allows you to balance charge without fussing with standard balance connectors.

New IC3 & IC5 Connectors

The innovative Smart connection is made possible by an installed microchip on every battery, feeding the unique information through a data cable to the new IC3 and IC5 connectors. The IC series of connectors are designed from the ground up to provide a more solid connection, higher heat resistance, and effortless installation. Sprung bullets ensure a solid connection that is easy to connect and disconnect, while the convenient solder pads allow for easy installation on your device.

Backwards Compatible

For those using the popular EC3 and EC5 connectors, there’s no need to worry. The IC connector series is entirely backwards compatible with existing connectors so you can use your Smart Charger with older batteries, but only when connected to a Spektrum Smart Battery are all the benefits of Smart technology obvious.

LED Display

High visibility 2.4-inch colour screen brightly displays all your vital information, even in bright sunlight.

High Powered

When paired with a capable power supply, enjoy 200W of output power that lets you quickly charge large and high cell count batteries with ease.

Touch Wheel interface

A clean and intuitive touch wheel interface makes it easy to navigate all the settings on your Smart Charger. This clean and simple design keeps a sleek profile that is perfect for tossing in your field bag.

Efficient Cooling System

The internal cooling fan keeps the charger at a safe and efficient operating temperature, perfect for fast charging larger batteries.

Built-in Protection

When combined with Spektrum Smart Batteries, the charger automatically recognizes battery chemistry, cell voltage, and capacity to ensure that you are always charging with correct settings, virtually eliminating the potential for charging incorrectly.

The Smart S1200 DC Charger requires a power supply for operation.



7-32 V DC

# Cells

LiHv (1-6S) LiPo (1-6S) LiFe (1-6S) Li-Ion (1-6S) NiMH (1-6S) Cd (1-16S) Pb (1-12S)

Charge Rate

0.1 - 8.0A

Cooling Method



Yes - on main LCD display

Amp Meter

Yes - on main LCD display




3.1 in (80 mm)


3.1 in (80 mm)


1.3 in (34 mm)

Available from:

Spektrum Spektrum Micro 6 Port DC/USB 1S LiPo Battery Charger

The Spektrum S63 DC/USB 1S LiPo Charger features Spektrum Smart technology, portable charging convenience and six independent 1S output port versatility in a way that’s easy so even on the go you can keep your entire ultra-micro fleet powered up.


  • Small size and low weight makes it easy to take anywhere
  • Six independent charge output ports can be used simultaneously
  • Operates from a wall outlet or standard USB port
  • Convenient voltage-check function
  • Digital LED displays Port and Voltage information
  • (6) Charging status lights (Red: Charging/Green: Full)
  • Charging current: 350mA (4), 500mA (2)
  • Works with a variety of 1S battery connector types

Product Information

The Spektrum™ S63 DC/USB 1S LiPo Charger is a portable 6-port device no RC pilot of ultra-micro aircraft should be without. Featuring Spektrum Smart™ Charger technology, the digital LED status screen keeps you in control of your ultra-micro 1S LiPo battery fleet by instantly displaying voltage no matter which of the six ports a battery is connected into.

Simply connect a 1S LiPo battery into one of the ports, and press Start—the Spektrum S63 LiPo Charger features integrated circuitry and six totally independent output charge ports dedicated to the 1S-type LiPo battery. For batteries with a 350mAh capacity or less, use ports 1-4; ports 5 and 6 have a higher charge rate for 1S batteries up to 750mAh.

Load up all six ports and fly practically as long as you like.

At practically half the size of the average smart phone, the Spektrum S63 LiPo Charger can easily fit in your pocket making it ideal to have handy at the flight line for quick battery voltage tests.

Go wireless with the Spektrum S63 LiPo Charger by using any 6.0V power supply or USB output from a Laptop. Both a battery charger and a battery checker, management of your 1S batteries could not be made simpler.

Easy to Operate
One-touch button operation makes charging simple. The vivid LED readout center clearly displays port and voltage information while status LEDs brightly glow either red or green to indicate port status. SIMPLE!



5VDC - USB charge port

# Cells


Charge Rate

6V | 0.1 - 1.0A

Input Connector

Mini USB connector

Output Connector


Battery Type



76 mm


63 mm


22.8 mm

Available from:

Dualsky GA6000.8 Brushless Motor, 60cc, 180kv, Four Bolt Prop Hub

The GA6000.8 is a high torque brushless motor from Dualsky which can work with 10-12S lithium batteries. It is designed for 3D airplanes up to 10kg in weight, sports airplanes up to 17kg in weight or UAV systems. This motor can serve as an alternative to a 55-60cc class gasoline engine.


  • Suitable for 3D airplanes, sports airplanes & UAV systems
  • Brushless
  • Can serve as alternative to 55-60cc gas engine

Product Information

The GA6000.8 is a 180kv, high torque brushless motor from Dualsky which can be used with 10-12S lithium batteries. It is designed for 3D airplanes up to 10kg in weight, or sports airplanes up to 17kg in weight, or UAV systems. This motor can serve as an alternative to a 55-60cc class petrol engine. It has a maximum output of up to 6800 watts, and will run a 12S battery @ 100A continuous using a 24 x 10 propellor developing around 3500-4000 watts. This 90mm diameter motor weighs 1090gm with accessories and features oversized Japanese NSK bearings and the highest grade neodymium magnets.



180 RPM/V

Weight w/o accessories


Outer diameter


Length w/ mounts


Length (Overall)


Diameter of shaft

12mm (internal)
10mm (output)

Mounting holes pitch


Idle current @ 10V


Nominal Voltage

30-51V, 10-12S LiPo

Peak Power (15s)

6800W (9.2HP) @ 8000RPM

Bursts current (15s)

140 A

Recommended ESC

130A - 160A HV Series


22 x 10, 23 x 8
23 x 10 (Max 7650RPM)
24 x 8, 24 x 9, 24 x 10, 25 x 10
XOAR 24 x 10 CF @ 12S, 125A, Thrust 18KG (No electric propeller allowed)

Weight of sports airplane

Up to 17kg

Weight of 3D airplane

Up to 10kg


Designed for 55-60cc class, 3D airplanes or UAV systems

Available from:

Dualsky GA3000.7 Brushless Motor, 30cc, 270kv

DUALSKY BL motors are precision mechanical masterpieces, are precisely manufactured and have an excellent efficiency. A wide range of motor types offers a drive for almost every application. Series "GA" is specifically designed for large-scale models and offers outstanding performance and a robust stainless steel motor shaft.


  • Designed for 120E to 140E Class 3D airplanes
  • High strength stainless steel shaft
  • Brushless
  • 30cc - 35cc class

Product Information

DUALSKY BL motors are precision mechanical masterpieces, are precisely manufactured and have an excellent efficiency. A wide range of motor types offers a drive for almost every application. Series "GA" is specifically designed for large-scale models and offers outstanding performance and a robust stainless steel motor shaft.



270 RPM/V

Weight w/o accessories


Outer diameter


Length w/ mounts


Length (Overall)


Diameter of shaft

12mm (internal)
8mm (output)

Mounting holes pitch

71 - 75mm

Idle current @ 10V


Nominal Voltage

19.6V, 8S LiPo

Peak Power (15s)

3000W (5.5HP)

Bursts current (15s)


Recommended ESC

1600W (2.75HP)


18x10, 19x10, 20x10

Weight of sports airplane

Up to 7.5kg

Weight of 3D airplane

Up to 5.0kg

Slots, Poles

24, 28

Available from:

Dualsky GA800.11 Brushless Motor, 30E, 500kv

Dualsky GA800.11 500KV Brushless Motor, 1000w, 30E


  • Designed for 30E - 40E class 3D airplane (Up to 55 inch wingspan)
  • Great alternative for a .15-.46ci engine
  • New modular light weight structure
  • Dualsky 28 poles efficient structure
  • Integrated motor mount




Weight w/o accessories


Outer Diameter

46 mm

Length w/ mounts


Length (overall)


Diameter of Shaft

5mm (internal)
8mm (output)

Mounting holes pitch

52mm to 58mm (D 4.2)

Slots, Poles

24, 28

Idle Current (Io) @10V


Resistance (Ri)

42.7 mOhm

Nominal Voltage (V)

22.2V, 6S LiPo

Peak Power [15s]


Bursts Current [15s]


Cruising Power [8 mins]


Recommended ESC



12 x 6 for best efficiency
13 x 6.5 for pilots performance
14 x 7 for extreme thrust

Weight of Sports Airplane

Up to 2.2kg

Weight of 3D Airplane

1.5kg to 1.8kg

Available from:

That’s all from the Thermal Circle happy, safe and successful soaring. Hayden Daley 2022

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