FNIRSI HS-03 Soldering Iron Review

In this video, I'm unboxing and putting the FNIRSI HS-03 wireless soldering iron through a real-world stress test. This cordless iron features hot-swappable 18650 batteries and uses high-precision JBC 210 tips, making it a very interesting option for both field repairs and keeping a clean workbench. Here is the affiliate links they provided me with, if you're interested in getting one using this link will show them it came from me and will help me get more goodies to test out! US Link: https://amzn.to/4yjTY1J CAN Link: https://amzn.to/44SA4gx -------------------------------------------- I'll walk you through: Unboxing & Build Quality: A look at the HS-03 and the included carrying case. Menu & Settings: Exploring the UI, temperature calibration, and sleep modes. Performance Testing: Soldering through-hole pins on ESP32 and Raspberry Pi Pico boards, plus some tricky surface mount (SMD) rework. Battery Life Stress Test: I'll see exactly how many boards I can solder on a single charge and test the "low voltage" cutoff. Final Thoughts: How it compares to the popular TS101 and whether it's the right choice for your electronics lab. Timestamps: 0:00 - Why a good iron matters 0:46 - Unboxing the HS-03 1:33 - JBC 210 Tips comparison 2:52 - First boot & scroll wheel UI 4:20 - Settings & Calibration 6:40 - The best feature: Swappable Battery 7:40 - SMD / Surface Mount Test 11:33 - Production test (Soldering 5+ boards) 16:47 - Low battery & charging test 19:44 - Final Verdict: HS-03 vs TS101