FNIRSI HS-03 cordless soldering iron with Type-C USB, 18650 battery, fast heating in 7 seconds.
The FNIRSI HS-03 is a modern cordless soldering iron designed for electronics repair, DIY projects, and precise soldering tasks. Powered by a replaceable 2600 mAh 18650 lithium battery, it allows you to work without wires anywhere – outdoors, in the workshop, or on the go. Fast heating in 7 seconds, precise temperature control, and USB-C charging ensure reliable performance for both professionals and hobbyists. The compact design and ergonomic handle allow for comfortable use for extended periods.
Key features of the FNIRSI HS-03
- 2600 mAh replaceable battery — Provides true freedom without wires and extends the device's operating time for outdoor work.
- Two power options — Switch between battery power and the Type-C connection to ensure soldering never stops.
- Fast heating in 7 seconds — Saves time in daily tasks and increases overall efficiency.
- Wide temperature range of 100–450°C — Suitable for both SMD components and high-temperature soldering.
- PID temperature control circuit — Maintains a stable temperature even under load, ensuring accurate results.
- 0.96 inch IPS display — Displays the temperature, power status, and operating mode in real time.
Technical specifications
- Name: HS-03 Cordless Soldering Pen
- Battery type: replaceable 18650 lithium battery
- Operating voltage: 5V (charging) / 3.7V (battery)
- Power supply: Type-C charging port
- Maximum power: 10W
- Temperature range: 100–450°C (212–842°F)
- Supported tips: K-Type (knife shape), I-Type (ultra-fine tip), IS-Type (bent hook)
- Display: 0.96 inch IPS HD color display
- Net weight: approximately 134g
- Temperature adjustment step: 1°F
- 5 quick temperature settings: 480–840°F
- Automatic sleep mode: 0.5–60 min
- Standby mode: 1–60 min
- Resistance of nozzle F210: 2.10Ω
- Package includes: HS-03 body with a 2600mAh lithium battery, cap, K-Type, I-Type, IS-Type nozzles, screwdriver, USB cable, storage box
Who is it suitable for and how to use it?
This cordless soldering iron is perfect for electronics technicians, repair specialists, and DIY enthusiasts who need a mobile and reliable tool. Use it for soldering small SMD components, connecting wires, or repairing electronics in both workshop and outdoor conditions. Choose the appropriate nozzle according to the type of work, set the desired temperature via the display, and use the automatic sleep mode to extend the life of the nozzle.
Buyer questions
Q: How quickly does the iron heat up?
The device heats up in just 7 seconds thanks to fast heating technology, so you can start working almost instantly, regardless of the temperature setting.
Q: Can the soldering iron be used while powered by USB when the battery is empty?
Yes, the HS-03 supports dual power mode - you can connect a Type-C cable and work directly from the charging source without interruption.
Q: What nozzles are suitable for small SMD components?
The package includes K-Type, I-Type, and IS-Type nozzles, while the F210 type nozzle with a 2.10Ω core provides excellent thermal response for small tasks.
FNIRSI HS-03 cordless soldering iron - a reliable choice for those who need a mobile, fast, and precisely controlled soldering tool at home or in the workshop.
Sources: Soldering Iron - Wikipedia | TopSmart store
| Weight | 0.540 kg |
|---|---|
| Dimensions | 26 × 14 × 8 cm |
| Brand | FNIRSI |
| High- related chemical | None |
| Origin | Mainland China |
| Certification | THIS |
| Model Number | HS-03 |
| Product | Cordless Soldering Iron |
| Temperature Range (℃) | 100-450°C |
| Temperature Range (°F) | 212-842°F |
| Maximum Power | 10W (Max) |
| Operating Voltage (Charging) | 5V |
| Operating Voltage (Battery) | 3.7V |
| Battery Type (Removable ) | 18650 Li-ion battery |
| Power Supply | Type-C Charging Port |
| Display | 0.96" IPS HD Color Screen |
| Even Weight | About 134g |
| Supported Tips | K-Tip (Knife Blades), I-Tip (Extra Sharp), IS-Tip (Bent Hook) |
| Dual Usage Modes | Wired & Cordless |
16 review for FNIRSI HS-03 belaidis litavimo lygintuvas su Type-C USB, 18650 baterija, greitas kaitinimas 7 sek.
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Customer –
Thank you for these diagnostic testing tools; they are very helpful.
Question: HS-03 Ships From: Mainland China
Z*** –
Question: HS-03 Ships From: Mainland China
Customer –
% 1
Question: HS-03 Ships From: Mainland China
A * * * –
Excellent welder, very practical and of very good quality.
Question: HS-03 Ships From: Mainland China
Customer –
Amazing value for the tool. It makes my old Hikari model feel like a stone tool. It heats and cools down incredibly fast, but due to that, it doesn't hold the temperature well when dealing with thick cables or PCBs with gold thermal reliefs.
Question: HS-03 Ships From: Mainland China
Customer –
Question: HS-03 Ships From: Mainland China
Customer –
Great just one thing i dont like, the case it comes with wont let me carry the soldering iron with the cap on. whats the point of the cap then if it doesn’t even fit on the soldering iron in the case?
Question: HS-03 Ships From: Mainland China
J * * * n –
Question: HS-03 Ships From: Mainland China
U * * * –
This is a very fine instrument, designed for small, delicate bits. It charged and started working immediately. I love it. The case is nice. I have a stand that works with it. The price is right. Delivery was fast. The HS-02 I tried would drop the cable and not stay hot; this one doesn't have those issues. It also cools down quickly enough in my wire stand for storage.
Question: HS-03 Ships From: Mainland China
Customer –
Workmanship is 5+, heats up quickly and cools down just as fast. Soldering iron for small jobs, I haven’t determined the battery life yet but it seems OK – 5 minutes of fun at 310°C and the battery indicator hasn’t dropped anything.
Question: HS-03 Ships From: Mainland China
Customer –
Question: HS-03 Ships From: Mainland China
Customer –
No words. FNIRSI is amazing! Admiration for this partnership! The equipment is top-notch!
Question: HS-03 Ships From: Mainland China
c * * * e –
It works very well and heats up very fast. The only downside is that it uses a C210 tip, so there aren't many options available, and the tips that came with the product are not very good. However, its usability is excellent because it is wireless.
Question: HS-03 Ships From: Mainland China
Customer –
Shipping was fast, with very detailed information. The product is high quality and sturdy; great purchase.
Question: HS-03 Ships From: Mainland China
a –
Very good quality item; I will recommend this to my friends.
Question: HS-03 Ships From: Mainland China
C * * * t –
Great seller!! item arrived exactly as described. when shipping got delayed in customs – seller answered my questions quickly, great customer service. will buy from this seller again!
Question: HS-03 Ships From: Mainland China