No compromises. My DREAM portable soldering iron is ... ALIENTEK T90B

ALIENTEK T90B Portable Soldering Iron

Main Features

• JBC C245-style tips: Uses standard tips rather than the modified tips required by the Sequre S99. The reviewer praises their heat delivery and temperature control.
• Flexible power: Runs from USB-C Power Delivery or DC input, including a 6S LiPo battery. With an adequate power source, the iron can support up to about 140 W.
• Configurable controls: The color display shows temperature, input voltage, current, and power. The iron offers three adjustable temperature presets, adjustable temperature increments, and Celsius/Fahrenheit options.
• Sleep and standby: It can automatically lower its temperature when set down, wake when picked up, or be put into standby manually. The timing and temperatures are configurable.
• Other options: Screen rotation, left-handed display orientation, temperature calibration, beeps, and a setting to control whether the iron heats automatically at startup.
• Included accessories: Metal protective cap, silicone resting pad, sponge, and tip storage.

Pros and User Experience

• The reviewer finds the aluminum construction and ergonomics notably better than the plastic, less-solid feel of older TS-style irons.
• It heats quickly and handles demanding drone-repair tasks well. In the demonstration, it rapidly soldered and desoldered thick ESC power-wire pads.
• It worked from a 6S battery, addressing a key limitation of the Sequre S99. Although rated for up to 140 W, the demonstration typically showed around 50–70 W being drawn.
• The iron can be bought on AliExpress for under $40 without the power adapter. Suitable replacement tips add roughly $10–$20, while authentic JBC tips cost much more—around $45–$50 each.
• The reviewer says it can run from a lower-wattage USB-PD supply, but it may shut down and reboot if it tries to draw more power than the supply can provide. The configured power can be lowered to match the supply.

Cons and Quirks

• The included tips are poorly suited to substantial soldering: The reviewer considers two of them too small and says the iron should ship with beefier tips.
• Inconsistent power-trim setting: During testing, the setting sometimes reverted or failed to save. The reviewer could not determine exactly why.
• Potentially confusing rocker-button controls: After rotating the screen, the buttons’ functions remain tied to their sides rather than their positions relative to the display.
• Manual work-voltage setting may be needed: To get maximum output from a 6S battery, the reviewer had to set the work voltage manually. Auto mode sometimes limited the power.
• A full 140 W USB-PD setup needs suitable equipment: It requires a high-output charger and cable; many multi-port chargers cannot provide that much from a single port.

Comparisons and Verdict

Compared with TS100/TS101-style irons, the T90B feels more premium and avoids the long, loose-fitting tip arrangement the reviewer disliked. The older irons were still considered adequate in raw performance.

Compared with the Sequre S99, the T90B keeps the compact JBC-style-tip approach while addressing the S99’s main limitations: restricted USB-PD power and a DC input limit that prevented use with 6S batteries. According to the reviewer, the S99 was limited to about 65 W over USB-PD and supported DC input only up to 21 V.

The reviewer calls the T90B his ultimate travel soldering iron at the time of the video. His main reservation is the weak selection of included tips; with better aftermarket tips and an appropriate power source, he strongly recommends it. No formal score or rating is given.

Speaker Perspective

The video presents one reviewer’s assessment. He acknowledges that his earlier positive review of the Sequre S99 was sincere, but says the T90B better meets his needs for high-power portable soldering.