FNIRSI HS-03 Cordless Soldering Iron Kit
- Wattage: 10 watts
- Upper Temperature Rating: 842 °F
- Heating Element: Ceramic
- Power Source: Corded Electric
Last refreshed Sep 8, 2026 · Based on the Amazon listing and published specifications, not hands-on testing.
A quick heating cordless pen aimed at field repairs and modding, with tool free tip swaps as the standout convenience.
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ASIN: B0GXFTTGWZModel: HS-03Category: Soldering Irons
Overview
The FNIRSI HS-03 is a cordless soldering pen built around a 2600mAh battery, rated to heat in about 3 seconds across a 212 to 842 F range, with a 0.96 inch color IPS screen and tool free tip swaps.
A knob steps through 5 preset temperature levels for quick jumps, then buttons allow fine adjustment in 1 F increments once you are close to your target. It also runs directly from a Type-C power source with no battery installed, so it does not have to sit idle while charging.
- 2600mAh dual power battery
- 3 second heat up, 212 to 842 F range
- 0.96 inch color IPS display
- Tool free K/I/IS tip swap
Who it's for
Mobile repair techs and console or handheld modders who need a cordless iron with fast tip changes, and either left or right hand users, since the display can flip orientation.
Pros and cons
- Heats to working temperature in about 3 seconds
- Tool free swaps between K, I, and IS tip shapes
- Runs wired without the battery installed, or fully cordless
- Display flips for left or right hand use
- Battery powered output is lower than a corded station for sustained heavier joints
Performance notes
A knob gives 5 quick temperature levels while buttons allow 1 F fine tuning, and the IPS screen brightness adjusts for use in a bright workspace or a dim garage. K, I, and IS tip shapes swap without tools for joints, precision work, or tight spaces, and an aluminum housing with left or right hand display orientation rounds out the ergonomics.
Specifications
| Brand | Fnirsi |
|---|---|
| Model | HS-03 |
| Dimensions & fit | |
| Item Weight | 0.3 pounds |
| Capacity & performance | |
| Upper Temperature Rating | 842 °F |
| Heating Element | Ceramic |
| Power & efficiency | |
| Wattage | 10 watts |
| Power Source | Corded Electric |
| Construction & materials | |
| Handle Material | Silicone |
| Included components | |
| Included Components | Screwdriver, Soldering Iron Tips, Storage Bag, USB |
| Other details | |
| Number Of Items | 1 |
| Additional Features | Heat Resistance Handles, Portable, Wireless |
| Specific Uses For Product | Electronics DIY & Repair, Home & Small Appliance Repair, Industrial Use, Jewelry Soldering, Residential Use |
| Style Name | Pencil |
| Item Highlight | 212-842°F, 5 Preset Temp Levels, Auto Sleep, 0.96" IPS Display Portable Soldering Iron Kit For Electronics Repair, DIY & PCB |
Frequently asked questions
How fast does the FNIRSI HS-03 heat up?
It is rated to reach working temperature in about 3 seconds from cold.
Can the FNIRSI HS-03 be used without its battery?
Yes, it can run directly from a Type-C power source with no battery installed.
What tip shapes does the FNIRSI HS-03 include?
It ships with K-Tip, I-Tip, and IS-Tip shapes that swap without tools.