FNIRSI® HS-03 Cordless Soldering Iron, 18650 Removable Battery, USB-C, 212–842℉

$74.99 USD
$99.98 USD
$74.99 USD
Extra $20 off coupon HS320, click to copy!
📁 Manuals & FirmwaresDownload

Highlights

◉ 2600mAh Built-in Battery – No Cords. Replaceable Battery

◉ Corded + Cordless Dual Mode

◉ 10W Power, 212–842°F (100–450°C)

◉ 7s Fast Heating for Instant Use

◉ 5 Quick-Adjust Levels for Faster Workflow

◉ 1℉ Ultra Precision Control

◉ Smart Auto Sleep & Power Saving System

◉ Advanced PID Temperature Stability

FNIRSI® HS-03 Cordless Soldering Iron, 18650 Removable Battery, USB-C, 212–842℉

FNIRSI® HS-03 Cordless Soldering Iron, 18650 Removable Battery, USB-C, 212–842℉

$99.98 $74.99

FNIRSI® HS-03 Cordless Soldering Iron, 18650 Removable Battery, USB-C, 212–842℉

$99.98 $74.99
The FNIRSI HS-03 cordless soldering iron features a 2600mAh rechargeable battery, delivering true wireless soldering for electronics repair, DIY, and precision work. With fast heating, USB-C power support, and accurate temperature control, it provides stable performance for both professionals and hobbyists.
 

Features

  • 2600mAh Replaceable Battery – True Cordless Freedom
    High-capacity battery with a replaceable design enables full wireless operation while extending the product lifespan—perfect for field work, repairs, and outdoor use without limits.
  • Dual Power Mode – Cordless & USB-C Powered
    Switch seamlessly between battery and Type-C power supply for uninterrupted soldering anytime.
  • Fast Heating – Melt Solder in 7 Seconds
    Rapid heat-up technology ensures quick start and high efficiency for daily tasks.
  • Wide Temperature Range (212–842℉ / 100–450℃)
    Covers everything from delicate SMD work to high-temp soldering applications.
  • 1℉ Precision Adjustment Control
    Fine-tune temperature in ultra-precise increments for professional-grade accuracy.
  • Advanced PID Temperature Control Chip
    Maintains stable temperature and minimizes fluctuations under load, ideal for precision electronics.
  • 5-Level Quick Temperature Presets
    Instant switching between preset levels (480–840°F) for faster workflow.
  • Smart Auto Sleep & Standby System
    Customizable sleep (0.5–60 min) and standby (1–60 min) to extend tip life and save power.
  • 0.96" IPS HD Display – Real-Time Monitoring
    Clear display shows temperature, power status, and working mode at a glance.
  • Left & Right Hand Mode Support
    Adaptive control system automatically adjusts button logic for both left- and right-handed users.
  • F210 Precision Tips for Fine Work
    High-quality tips (2.10Ω core) deliver excellent thermal response for small components and SMD soldering.
  • Compact & Lightweight Design
    Ultra-portable and ergonomic with silicone grip, perfect for long-time handheld use.

Specifications

Model
HS-03
Working Voltage
5V
Temperature range
100-450℃ (212-842℉)
Screen
0.96 IPS HD Color Screen
Power supply
Type-C
Power
10W (Max)
Soldering iron tip
F210
Weight
≈134g
 

Package List:

◉ HS-03 Host with 2600mAh Battery + K-Tip (Knife Blades)
◉ Pen Cap
◉ I-Tip (Extra Sharp) + IS-Tip (Bent Hook)
◉ Screwdriver
◉ USB Cable
◉ Storage Box
 

Package List:

◉ HS-03 Host with 2600mAh Battery + K-Tip (Knife Blades)
◉ Pen Cap
◉ I-Tip (Extra Sharp) + IS-Tip (Bent Hook)
◉ Screwdriver
◉ USB Cable
◉ Storage Box

Using Environment and Precautions

The device should be stored in a soft case, and the operating environment should be at a temperature of -5~40℃, and the relative humidity should not exceed 80%.

The device should be stored in a clean and dry place to avoid moisture, mold, heavy pressure, mechanical damage,humidity and direct sunlight.

Avoid using in the rain or fog, avoid dropping or shocking.

When the screen on the LCD does not light up, it indicates that the voltage is too low, and it needs to be charged in time.

Copyrights

The product specifications are subject to change without notice, allfinal interpretation rights were reserved by FNIRSI Technology Co., Ltd, All trademarks, product images, technical parameters are properties of FNIRSI Technology Co.. Ltd. All rights reserved.

Warranty

30-Day return and refund guarantee (Refer to our Refund Policy), 2-year warranty (only available for orders purchased directly from fnirsi.com), lifetime technique support by FNIRSI.
Please feel free to reach us with any concerns:
Email: service@fnirsi.com / info@fnirsi.com
We strive to reply to you within 24 hours.

FNIRSI has started researching and development manufacturer of quality optical products including Golf rangefinder, laser,measure device and binoculars since 2016.
Focus on the development,researching, and manufacturing for over 8 years.
We are committed to delivering premium products and exceptional customer service, striving to be your most reliable and intelligent assistant.

At Fnirsi, we are committed to providing our customers with the best value for their purchases. To ensure you always get the best price, we offer a 30-day price guarantee on all products purchased directly from fnirsi.com. This policy aims to give you confidence and peace of mind when shopping with us.

What is the 30-Day Price Guarantee?

Our 30-day price guarantee means that if you purchase a product from fnirsi.com and the price of that product drops within 30 days of your purchase date, you are eligible for a refund of the price difference of the products. (Prices are based on USD. No refunds will be given for price changes in other currencies due to exchange rate fluctuations.)

How Does the Price Guarantee Apply?

  • Eligibility: The price guarantee applies only to purchases made on fnirsi.com. Products purchased from other retailers or third-party sellers are not eligible.
  • Timeframe: The price drop must occur within 30 days of your original purchase date.
  • Product Match: The price guarantee applies to the same product (identical model, specifications, and condition).

How to Apply for a Price Difference Refund

If you notice that the price of a product you purchased from fnirsi.com has dropped within 30 days, follow these steps to apply for a refund of the price difference:

  • Documentation: Prepare your order number and proof of the price drop (such as a screenshot and link to the product page showing the reduced price).
  • Contact Us: Reach out to our customer support team at info@fnirsi.com .Include your order number, proof of the price drop, and a brief explanation of your request.
  • Verification: Our team will verify the price drop and your purchase details.
  • Refund Process: Once verified, we will process the refund for the price difference to your original method of payment. It typically takes 1-3 business days for you to receive the refund.

At Fnirsi, we strive to provide our customers with high-quality products and exceptional customer service. Our 30-day price guarantee is just one of the ways we ensure you get the best value for your investment. Shop confidently with Fnirsi, knowing that you are always getting the best deal available.
Thank you for choosing Fnirsi. If you have any questions or need further assistance, please do not hesitate to contact our customer support team at info@fnirsi.com.

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  • 5 stars: 150 (88%)
  • 4 stars: 12 (7%)
  • 3 stars: 5 (3%)
  • 2 stars: 0 (0%)
  • 1 star: 3 (2%)
F
Fisa.ma87 F.
Perfektní

Perfektní

E
Elio D.S.
light and efficient welder

I have to admit that this soldering iron was a real surprise. Once you set the temperature, it heats up in no time and it's very light to hold. Unlike gas ones, it can be used in any position and the battery life is good.
There are different soldering tips to use, and the packaging is really well done.
In my opinion, it lacks a system for cleaning the tip because after a while it tends to oxidize, and if not cleaned, it struggles to melt the solder. A small sponge with a container to moisten it would be enough, and then it would be perfect.

F
Fabio Z.
Finalmente un saldatore a batteria che garantisce un’ottima autonomia anche ad alte temperature

Finalmente un saldatore a batteria che garantisce un’ottima autonomia anche ad alte temperature oltre che buone prestazioni nella saldatura di componentistica smd. Vedremo con il tempo la durata degli stilo resistivi. Brava FNIRSI 😉

N
Nazzareno M.
Ottimo saldatore con astuccio e tutto

Ottimo saldatore con astuccio e tutto l'occorrente per il funzionamento, ben costruito, lo Consiglio. 👍🏻😉

S
Serhii L.
HS-03

Чудовий портативний паяльник, для роботи з smd компонентами, зручно працювати з малими елементами при використанні мікроскопу, з більш теплойомкими платами нажаль не справляється, не вистачає потужності, всеж таки 10 ват. В загалом дуже подобається за портативність.

T
Tim
Soldering iron

Does as it says on the tin. Great value.

E
Electronic F.
Excellent products

I really love FNIRSI’s products. I’ve purchased their wired and wireless soldering irons, multimeter, and component tester, and I’ve been very happy with the quality and performance. Their tools have been a great addition to my workbench, and I’m already planning to buy more. Electronic Fix

D
Dragan T.
Fnirsi

Great

J
Jonatan C.
Fantástico!!!

El soldador es espectacular, cómodo de usar, ergonómico, práctico y muy completo!! Ideal para poder realizar cualquier tipo de trabajo o reparación, sin necesidad de cables ni enchufes!!! Maravilloso!!

K
Ken S.
Parfait

Ce fer à souder est de très bonne conception, ergométrique, et facile d'emploie, je vous le conseille.

N
Nikos D.
My best purchase

What a tool... I definitely recommended 👌

D
David H.
Excellent Product

This cordless soldering iron is excellent and comes with all you need, just add solder!

The service from FNIRSI was also excellent, highly recommended.

X
Xosé
Excelente

Pués me ha encantado, buena construcción, un estuche estupendo y se desempeña bien, obviamente es un soldador para usar en momentos puntuales si te desplazas por ejemplo, soy informático y lo llevo conmigo por si acaso.

T
Thomas
Great lightwight soldering iron

My beloved daily helper on my workbench - for fast prototyping and other projects.

c
colten s.
Amazing

Work always I'm so happy with my product that I buy from you guys that you guys just go beyond and for the price you cannot be I love it 10 out of 10 you guys are killing it just the top company right now I mean awesome

J
Jiří Š.
FNIRSI® HS-03

This is the third product from FNIRSI. I am extremely satisfied. Everything works as described. Thank you.

M
Mauro B.

FNIRSI® HS-03 Cordless Soldering Iron, 18650 Removable Battery, USB-C, 212–842℉

T
Tonny B.
Master piece

I love good tools and these brand is one of the best I tested!

A
Antonio Q.R.
Great!!

I've already bought several products from this brand and I love them. The quality, the performance, the design, the presentation—everything is perfect. I've used it several times and it works flawlessly. The battery has only been charged once and is still above 50%. Shipping to Spain took about 12 days. Highly recommended.

N
Nguyễn T.H.
Thank you.

Order number ZTTVN0000002517YQ has been received. The product looks very beautiful and exquisite. Thank you to the Shop and the Company for supplying this useful item to users. Wishing the Shop and the Company continued success and prosperity.

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