Review: TS100 Soldering Iron – Best Portable & Field Repairing Tool

by Oscar

The TS100 soldering iron is one of the best tool I’ve owned for building and repairing quadcopters. It can be powered by a LiPo battery as well as a power supply. It’s small and lightweight, and extremely portable. I will go though the features in this review and explain why this solder iron is so good.

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Update (Jun 2023): The TS100 seems to be discontinued as I can’t find it anywhere now. But fear not! Check out the HGLRC RC2 / Sequre SI012, it’s a cheaper yet better iron.

Here is my tutorial on how to select soldering equipment, what solder to use, and how to solder.

Why is the TS100 Soldering Iron Great?


The TS100 is a portable, programmable soldering iron. It’s only 31g in weight and 17cm long.

Input voltage is 12V to 24V which means you can power it off a PSU as well as any 3S, 4S or 5S LiPo batteries allowing you to carry out field repairing easily. A lot of people have been using this iron on 6S LiPo (up to 26.4V) without any problem, but do this at your own risk.

The power of the iron is proportional to the input voltage.

Input Voltage Power Time to heat up from 30° to 300°
12V (3S) 17W 40s
16V (4S) 30W 20s
19V (5S) 40W 15s
24V (6S) 65W 11s

The default temperature range is between 100°C to 400°C which should be more than enough for RC hobby use. (Any higher than that increases the risk of damaging PCB)


It’s got REAL temperature controlUnlike traditional soldering irons that simply apply a constant power, the TS100 actually monitors and adjusts the temperature by heating up and cooling down with built-in temperature sensors.

When the iron is idle for too long (3 mins) it enters Standby Mode automatically (it has an accelerometer with STM32 processor!), in which it lowers the temperature to 200°. This prevents dry heating that could oxidize the tip, prolongs the life span of soldering head, and helps save your energy bills. When you hold it up again, it will detect the movement and raise temperature.



  • TS100 Soldering Iron
  • TS-B2 Solder Tip
  • 1x Allen Key and 2 screws (For replacing the tips and heating element)

Assembly only took about 10 seconds :)


It has 2 buttons and a OLED screen.

On the rear of the body, it mentions the connector type (DC5525) and input voltage range. And the model number of the tip (TS-B2) is printed on the head.

On the end of the TS100, there is a micro USB port for updating firmware (not a 5V USB charger), and the power connector.

Different shape and size tips are available (purchase separately). The one that comes with it is the TS-B2 pencil tip. I think it’s probably the best choice for mini quad builds if you ever only use 1 tip.


User Experience

Overall, the TS100 is a great soldering iron: simple to use and works as expected. It’s compact and light weight. It can be powered off our 4S LiPo batteries, makes it perfect for bench as well as field repairing and building.

However the grip is a bit small compared to my full size soldering iron. If you have big hands you might find it harder to handle than a proper bench soldering station.

Lastly, you will need the following 2 items to make your TS100 perfect.

Power Adapter Cable

You can get a power supply for the TS100 with the correct connector, such as the Sony AC-S2422 (output [email protected])

But if you want to power it from LiPo batteries you’ll also need a XT60 2.5mm Barrel adapter cable. You can get buy it pre-made from GetFPV or Banggood.

Anyway, it’s really simple to make, all you need is a female XT60, a DC5525 Barrel connector, and some silicone wires of 24-26 AWG. (current is only about 2.5A so no need to go too large in wires)

For the wires, I think 26awg or larger wires should be fine (current at max power is under 3A). The lighter wires handle better, I tried 16awg wires and I didn’t like the extra weight on the soldering iron. Also make it longer, 2 feet or more ideally.

Soldering Iron Holder

TS100 doesn’t come with a holder, so you have to be creative and safe. There are some 3D printed solution like this one. I am not a big fan of this since the soldering iron could get warm and melt the plastic :)

Or you can use a soldering helping hand stand like me.

Should you buy the TS100?

After using the TS100 for about a year now, I think it’s perfect for beginners or advanced drone builders.

You can probably get a cheaper soldering station with built-in power supply, but the TS100 is so powerful in terms of features, and it’s also portable for field repairing, therefore I highly recommend it!

Here is a review video from Carlos on his YT channel.

Firmware Update

The custom firmware is developed by Ralim on Github. The firmware can be found here:

Why do you want to update the TS100 to the custom firmware?

There are many new features made available by the new custom firmware, but the most important ones to me and to many others are the following:

  • Enables maximum temperature up to 450°C
  • Allows you to adjust all the settings on the pen itself which is handy (with the original firmware, you have to upload the settings in a text file)
  • Set a voltage lower limit for LiPo batteries so you don’t over-discharge the battery pack (you can select 3S, 4S, 5S, 6S, or DC)
  • Battery charge level indicator (shows how much power is left)
  • Custom boot-up logo (here is my logo in case you want to play with it)
  • Automatic LCD rotation based on orientation

The firmware update is really easy to do, only takes a couple of mins so I recommend doing it.

How to Update?

Download the latest firmware “.hex file” of your preferred language here:

Instructions to update the firmware can be found here for all Windows, Mac and Linux users:

To sum it up for Windows users:

  1. Hold down the button closest to the tip, and plug in the USB to the computer
  2. The unit will appear as a USB drive
  3. Drag the .hex file onto the USB drive
  4. The unit will disconnect and reconnect
  5. The filename will have changed to end in .RDY or .ERR or .NOT
  6. If it ends with .RDY you’re done! Otherwise, something went wrong
  7. Disconnect the USB and power up the iron. You’re good to go

Power Supply

So I think the best power supply for the TS100 is probably a 6S LiPo. If you don’t have that, you can also get a step-up voltage regulator to boost the voltage of a 4S battery to 24V :)

Better Tip

You can get replacement tips for this iron. In fact I like the bevel tip even more than the stock one for RC applications.

Type: TS-BC2 – It has a larger contact surface area for heat transfer, much easier for soldering large joints like PDB and XT60 pigtails. The pointy end is good for precise works.

Edit History

  • Apr 2017 – Review published
  • Dec 2017 – Added instructions to update firmware
  • Apr 2019 – Added link to replacement tips

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Mike 11th November 2019 - 3:59 am

The config. Txt file I accidentally deleted, what I need to do?

Noel 17th March 2019 - 7:41 am

Hi oscar, in the dc5525 connector which one is the negative and positive? Thanks

Oscar 21st March 2019 - 7:37 pm

middle pin is positive, the contact around the outside is negative.

Alexandru Girbo 4th October 2018 - 3:23 pm

how fast does it drains a 60W battery?

BrokePilot 18th June 2018 - 8:33 am

Hi! Thanks for the review. Will the firmware update work with macs? Thanks!

jesi 4th September 2017 - 8:06 pm

Has anyone tested with fully charged 6s?

Oscar 5th April 2018 - 1:44 pm

Yes it works even better than 4S :) Heats up much faster and holds the heat better.

Mark Cocquio 17th April 2017 - 2:04 am

I have a proper soldering station, but i use the TS100 basically all the time now. It’s awesome. And it can run off a 6S battery.

Adam 13th April 2017 - 7:01 pm

What decent soldering station would you recommend for 60$?

Oscar 13th April 2017 - 7:12 pm

I have been using the Duratool 48W, it’s only about $20… the first one lasted 2 years (broken cord) then I bought a 2nd one.