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BLACKCUBE Cordless Soldering Iron Kit - Portable 2000mAh USB Rechargeable Soldering Iron Tools with LED Spotlight Max 878℉ Fast Heating 4V Lithium-Ion Battery
BLACKCUBE

BLACKCUBE Cordless Soldering Iron Kit

Bottom line: The BLACKCUBE Cordless Soldering Iron Kit: 2000mAh battery recharges over USB-C in about 3 hours; main trade-off: no adjustable temperature control is mentioned in the listing.

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By , Founder & Editor-in-Chief · Listing data updated

Mike Perry — Hardware researcher since 2014. For PC and retro-hardware cleaning and maintenance tools, synthesises manufacturer documentation, community compatibility lists and marketplace listings rather than first-hand lab testing. Core beat: GPU performance across gaming, rendering, and local-LLM inference.

Pros & Cons

Pros

  • ✓ 2000mAh battery recharges over USB-C in about 3 hours
  • ✓ Reaches 470°C/878°F; indicator turns green in roughly 25-30 seconds
  • ✓ No power cord to drag across the board or snag on your bench
  • ✓ Built-in LED spotlight lights the joint in dim work areas
  • ✓ Kit adds base, solder wire, USB-C cable and nylon storage bag

Cons

  • ✗ No adjustable temperature control is mentioned in the listing
  • ✗ Runtime per charge is not specified by the manufacturer
  • ✗ Tip shape, size and replacement tips are not detailed
  • ✗ Full recharge takes about 3 hours, so a dead battery stalls the job

Manufacturer description

The BLACKCUBE Cordless Soldering Iron Kit removes the power cord from your bench, so you can reach into a console shell, a PC case or a guitar cavity without a cable pulling on the iron. A built-in 2000mAh lithium-ion battery powers the 4V iron. It recharges through a Type-C port in about 3 hours, and the manufacturer rates it for about 1000 charge cycles. Heat-up is quick for a battery tool. The indicator light changes from red to green after about 25-30 seconds, which means the tip has reached its top temperature of 470°C (878°F). An LED spotlight in the body lights the joint you are…

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SpecPicks Verdict

SpecPicks scored BLACKCUBE Cordless Soldering Iron Kit using a rating × review-volume × price-fit model applied to published specs and reviews across the tools & maintenance category. BLACKCUBE's tools & maintenance lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.

Common buyer scenarios for tools & maintenance: PC towers accumulate significant dust in 3–6 months, so cleaning frequency drives cordless vs. canned-air tradeoff decisions. Match the device's RPM or CFM rating to your case size, and confirm battery runtime covers a full tower cleaning before ordering. Prices and stock are set by the retailer and may have moved since this page was last updated.

Frequently Asked Questions

How long does the BLACKCUBE cordless soldering iron take to heat up?

The indicator light changes from red to green after about 25-30 seconds. Green means the tip has reached its maximum temperature of 470°C (878°F).

How do I charge it and how long does charging take?

Charge it with the included Type-C cable. The 2000mAh built-in battery reaches a full charge in about 3 hours, and the manufacturer rates it for about 1000 charge cycles.

How long will one charge last while soldering?

The listing gives the battery capacity (2000mAh) but not the runtime per charge. Runtime depends on how long you hold the iron at temperature, so check the product listing or ask the manufacturer for a figure.

What comes in the box?

The kit includes 1 cordless soldering iron, 1 base, 1 roll of solder wire, 1 Type-C charging cable and 1 nylon storage bag.

Is it suitable for retro console and computer hardware repair?

The manufacturer lists circuit board repair, computer hardware, wiring, TV capacitors and small electronic work as intended uses. Its 878°F maximum and LED spotlight suit small through-hole and wire joints.

Key Features

  • PORTABLE & CORDLESS: Our soldering iron has no wire winding, which makes the control more free and convenient, you can get rid of the shackles of the power cord, perform welding work with our cordless soldering iron freely, it is also extremely lightweight, making it easy for you to carry it
  • LONG BATTERY LIFE: The 2000mAh large-capacity Built-in battery is equipped with a TYPE-C charging port which can be fully charged about 3 hours, the battery can be used repeatedly about 1000 times, bring you long service life and cost-saving
  • LED SPOTLIGHT: Our soldering iron has a built-in LED illumination for precise soldering in dim light working environment. The indicator light changes after approx. 25-30 seconds from red to green and reaches the highest temperature(470℃/878℉)
  • ERGONOMIC DESIGN: With the optimized body structure and material, the TPE handle is comfortable and non-slip that you can hold the soldering iron effortlessly, it is perfect for DIY enthusiasts, and hobbyists
  • PACKAGE INCLUDE: 1×Cordless soldering iron, 1×Base, 1×solder wire tin, 1×type-c charging cable, 1×Nylon storage bag, suitable for DIY, various electronics and circuit board repaired uses, soldering, jewelry, guitar, watches, wiring, mobile device, computer hardware, small electronic work, TV capacitors or accessories

Full Specifications

BrandBLACKCUBE
Wattage8 watts
Head StyleScrewdriver
Style NameCordless Soldering Iron + 1 Tip
Item Length8 inches
ConnectivityUSB
Model NumberSI-L-4V-PRO
Power SourceBattery Powered
Handle Material‎Plastic
Heating ElementCeramic
Special FeatureCordless, Lightweight, Portable
Additional FeaturesCordless, Lightweight, Portable
Included ComponentsSoldering Iron, Soldering Iron Stand, Soldering Iron Tips
Manufacturer Part NumberSI-L-4V-PRO
Specific Uses For ProductElectronics Assembly, Jewelry Soldering, Residential Use
Full listing titleBLACKCUBE Cordless Soldering Iron Kit - Portable 2000mAh USB Rechargeable Soldering Iron Tools with LED Spotlight Max 878℉ Fast Heating 4V Lithium-Ion Battery

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BLACKCUBE Cordless Soldering Iron Kit - Portable 2000mAh USB Rechargeable Soldering Iron Tools with LED Spotlight Max 878℉ Fast Heating 4V Lithium-Ion Battery is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.

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BLACKCUBE Cordless Soldering Iron Kit - Portable 2000mAh USB Rechargeable Soldering Iron Tools with LED Spotlight Max 878℉ Fast Heating 4V Lithium-Ion Battery
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