Solder anywhere with the FNIRSI HS-03’s cordless, swappable-battery design.
The FNIRSI HS-03 Cordless Soldering Iron pairs a 2600mAh replaceable battery with fast USB-C charging, giving you bench-iron heat-up speed in a pocket-sized tool for field repairs, drone builds, and on-the-go electronics work.
Top Features
- 2600mAh Replaceable Battery: Swap in a spare cell for true cordless freedom, or run on USB-C power for uninterrupted soldering.
- 7-Second Heat-Up: Reaches working temperature almost instantly, so there’s no waiting around mid-repair.
- 0.96″ IPS HD Display: Colour screen shows set vs. real-time temperature and battery status at a glance.
- 1°F Precision with PID Control: Actively holds tip temperature steady across the 100-450°C range, even under load.
- 5 Temperature Presets: Jump straight to your most-used settings (480-840°F) without scrolling through a menu.
- Smart Auto-Sleep & Standby: Customisable sleep (0.5-60 min) and standby (1-60 min) to protect tip life and save battery.
- Left & Right-Hand Mode: Button logic automatically adapts for left- or right-handed use.
- Interchangeable F210 Tips: Comes with K, I, and IS tip variants for fine SMD work through to bigger joints.
Details & Specs
| Specification | Details |
|---|---|
| Model | FNIRSI HS-03 |
| Weight | ≈134 g |
| What’s in the Box | HS-03 host with built-in 2600mAh battery and K-tip fitted; pen cap; I-tip (extra sharp) and IS-tip (bent hook); screwdriver; USB cable; storage box. |
| Other | Working Voltage: 5V via USB-C; Power: 10W (max); Temperature Range: 100–450°C (212–842°F); Screen: 0.96″ IPS HD colour display; Soldering Tip: F210 (2.10Ω core); Heat-up time: 7 seconds; Adjustment: 1°F step with PID temperature control; 5 preset temperature levels (480–840°F); Auto-sleep: 0.5–60 min, standby: 1–60 min (both adjustable); Left- and right-hand mode support. |
Built for technicians and hobbyists who need bench-grade control without being tied to a mains socket, the HS-03 brings precise, repeatable soldering to repairs on phones, drones, laptops, and PCBs wherever the job takes you.