# SZ-KARIDGE 50103 cordless soldering iron, 1600mAh

The SZ-KARIDGE 50103 is a rechargeable cordless soldering iron listing aimed at PCB soldering, cable repair and small appliance fixes. Its claimed adjustable temperature and Type-C charging suit occasional bench work, while customer feedback is mixed on heat retention and battery life.

- [Original product page](https://bargainpostbox.co.uk/product/sz-karidge-50103-cordless-soldering-iron)
- [View offer](https://bargainpostbox.co.uk/visit/sz-karidge-50103-cordless-soldering-iron)
- Market: UK
- Language: en-GB
- Currency: GBP
- Brand: SZ-KARIDGE
- Model: 50103
- Price: 22.94 GBP
- Previous price: 26.99 GBP
- Discount: 15%
- Price checked: 2026-11-12T17:41:59.115Z
- Rating: 4.2 / 5
- Reviews: 43

Prices and deal status are the latest recorded data, not a guarantee of availability. Confirm the price and availability with the store.

## At a glance

- The listing claims an 8-second heat-up and electronic temperature adjustment from 180°C to 450°C.
- Its 1600mAh battery is claimed to provide approximately 30-60 minutes of cordless operation depending on temperature.
- Type-C charging is claimed to support charging from a wall adapter, laptop, power bank or car charger.
- A sleep mode is claimed to activate after 60 seconds of inactivity.

## Pros

- Cordless operation and Type-C charging give more flexibility than a permanently tethered iron.
- Temperature adjustment and three listed interchangeable tips support a range of small repair tasks.
- The listed kit includes soldering consumables and storage accessories, subject to the package caveat below.

## Cons

- Customer feedback reports mixed heat retention, including concerns that the iron may not maintain heat during work.
- Battery life receives mixed feedback, with reports of slower recharging and charge depleting sooner than expected.

## Specifications

### Identity
- Brand: SZ-KARIDGE
- Model: 50103
### Power and battery
- Power configuration: Battery Powered
- Battery capacity: 1600mAh
- Claimed cordless runtime: approximately 30-60 minutes of continuous wireless use per charge, depending on the temperature setting
### Heating and controls
- Claimed heat-up time: 8 seconds
- Temperature range: 180°C to 450°C
- Start-up temperature: 350°C
- Temperature adjustment: ±5°C
- Heating element: Integrated Heating Core
- Sleep mode: 60s of inactivity
### Charging and construction
- Charging connection: Type-C
- Handle material: Plastic

## Before you buy

- The stated cordless runtime depends on temperature, and the listing also claims use while charging. Customer feedback is mixed on heat retention and battery life, so consider these reports when planning longer or heat-demanding work.
- The title claims a kit with three tips and solder consumables, while the explicit contents list specifies the iron, three tips, solder paste, solder wire rolls, Type-C cable, stand and storage case. The title does not establish whether every named accessory is included, so check the selected listing's package details.

## In the box

- Cordless soldering iron (Included)
- 3 interchangeable tips (Included)
- Solder paste (Included)
- Solder wire rolls (Included)
- Type-C cable (Included)
- Stand (Included)
- Storage case (Included)

## A good fit for

- DIY users handling PCB soldering, cable repair or small appliance fixes who want a rechargeable iron.
- Buyers who value temperature adjustment and a kit listing that names tips, solder supplies and storage accessories.

## Less suited to

- People needing confirmed sustained heat performance or dependable long sessions without interruption.
- Buyers who require a separately confirmed package inventory or a confirmed replacement-tip supply.

## Customer feedback

Customer feedback describes the iron as a good kit, but reports on heat retention and battery life are mixed. Some customers say it heats quickly, while others report it does not maintain heat. Battery comments include slower recharging and quicker-than-expected depletion. These concerns matter for sustained soldering, despite the listing's claimed rapid heat-up and 30-60 minutes of cordless use.
- Positive themes: Customers describe it as a good kit.
- Mixed feedback: Heat retention receives mixed feedback, including reports that it may not maintain heat.
- Mixed feedback: Battery life receives mixed feedback, including slower recharging and quicker-than-expected depletion.

## Frequently asked questions

### What temperature range does the listing specify?
It claims electronic adjustment from 180°C to 450°C, with a 350°C default start-up temperature and 5°C steps.
### How long does the battery last?
The listing claims approximately 30-60 minutes of continuous cordless use per charge, depending on temperature. Customer feedback on battery life is mixed.
### What is included in the package?
The explicit contents list names the iron, three interchangeable tips, solder paste, solder wire rolls, a Type-C cable, a stand and a storage case. The title also presents the product as a kit, so confirm the selected listing's exact package contents.
### Can it be used while charging?
The listing claims it can be used while charging from a power bank or adapter. This is a manufacturer claim, not an independently verified performance result.
### Are replacement tips available?
The listing says tips are consumables and states that replacements are not sold separately. It points to C210 as a search term, but does not confirm compatibility.

## Alternative options

- [A-HEYIDA Cordless Soldering Iron Kit, 15W, 1600mAh, Type-C, 8s Heat-Up \| 15W dual power, 1600mAh, USB-C charge, 8s heat-up, 180-450°C, 3 tips, case, electronics and circuit board repair](https://bargainpostbox.co.uk/visit/sz-karidge-50103-cordless-soldering-iron)
- [FrogBro Portable Cordless Soldering Iron Upgraded 11W LD006A-Pro 2500mAh \| High Capacity Fast Heating, Professional Safe Battery Soldering iron Kit,for Beginners and Professionals, Max 520°C](https://bargainpostbox.co.uk/visit/sz-karidge-50103-cordless-soldering-iron)
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- [XUZIE USB-C Cordless Soldering Iron Kit, Rechargeable, Fast Heating, Grey \| LCD Digital Display, Adjustable Temperature 260°C-420°C, 3 Tips & Solder Wire, Portable for Electronics Repair, DIY Projects](https://bargainpostbox.co.uk/visit/sz-karidge-50103-cordless-soldering-iron)
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- [Soldering Iron Set - Portable Wireless Soldering Iron, Solder Kit, Orange \| USB 1400mAh Battery, 8s Fast Heat-Up, Adjustable Temp 180~450°C, 3 Soldering-Tips for Repairing Circuit Board](https://bargainpostbox.co.uk/visit/sz-karidge-50103-cordless-soldering-iron)
- [SEESII S01 16W Cordless Soldering Iron Kit, 2600mAh Battery, Foldable Stand \| 7s Fast Heating\(390℉-840℉\), 10℉ Step Adjust, Protective Cap, Portable 16W Soldering Pen for Electronics Repair, DIY & PCB](https://bargainpostbox.co.uk/visit/seesii-s01-cordless-soldering-iron-kit)
- [FrogBro 11 W Battery Soldering Iron Set with 2 Soldering Tips \| 1 Desoldering Pump and Type C Cable + UK Adapter, Easy to Use, Professional and Safe Cordless Welding Tools \(LD006A-11W-UK\)](https://bargainpostbox.co.uk/visit/sz-karidge-50103-cordless-soldering-iron)
- [Soldering Iron Kit 80W LCD Adjustable Temp 180-520°C Welding Tool,Black \| 15s Fast Heat 13-in-1 Electric Solder Gun with 50g Solder Wire, 5 Soldering Tips, Desoldering Pump, Wire Stripper, Tweezers](https://bargainpostbox.co.uk/visit/sz-karidge-50103-cordless-soldering-iron)
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## Add-ons

- [Rechargeable Cordless Soldering Iron Kit, 1600mAh Wireless Soldering Pen 8s Rapid Heating, 180-450°C Adjustable, 3 Interchang](https://bargainpostbox.co.uk/visit/sz-karidge-50103-cordless-soldering-iron)

## Images

![SZ-KARIDGE 50103 cordless soldering iron, 1600mAh — 1](https://bargainpostbox.co.uk/i/aJYn8o5xwT2v7s5u6lTXaUPAkEPzLsF_gGMHG5QXuBPncL36mDhp42XM8JwOMwAsg5TbDjKpbAQZezUGMHo4jVUuY4wwt4GkAMPZFVgnlCfdXqQ6ih0X8Al9.jpg)

![SZ-KARIDGE 50103 cordless soldering iron, 1600mAh — 2](https://bargainpostbox.co.uk/i/GhcnYfxVoV15WdayiLr-f4FdGOO-ekAh20gsIqF4hL4nVBxqc7Pz0AtmPJMVe6dcghcFFFwTJ__4GBrfqqRoggDi3eN0P0FiQi6F3ToHmOHXfVa7tRvfR3Nz.jpg)

![SZ-KARIDGE 50103 cordless soldering iron, 1600mAh — 3](https://bargainpostbox.co.uk/i/OZVaeyt6O-S7bE1wuIh_bHwcW9iFNU6VpViyLkc3Q-7MPJxyzT3VNOUfMx-Ik9I712xYOFn3sjZEGDuBbbHeQxQbWgKIPeRxh4_FM2XClNhKZ-a7Exv4W9ex.jpg)

![SZ-KARIDGE 50103 cordless soldering iron, 1600mAh — 4](https://bargainpostbox.co.uk/i/klFGPRpw6vCrQ_FB1d9_005_5OQ712lEkwPGKAa7C8ihVvN1qJNssNJ2mBvHvrtr0fg9P5dDVo4Tp7asH19ZmrnyqysHy2wpGlGUHFPk0wkIsJ8dU7Qdq3VS.jpg)

![SZ-KARIDGE 50103 cordless soldering iron, 1600mAh — 5](https://bargainpostbox.co.uk/i/dH6NGpBbB-JmRYicBYOFBfHrnmEh541wZiBj9p-dIwjilmGKBhQ_8GIE2ya4XbNCiTW-Y1xrHzBGCwuS6CV9XSrURvnCL3ez6zr2hhPev3hQ5Fprw7rmC2nD.jpg)

![SZ-KARIDGE 50103 cordless soldering iron, 1600mAh — 6](https://bargainpostbox.co.uk/i/l1JbPZTp6zVRuQK7q03KMkkSSa3-dCWjzyO_uSREVgujzZi2ZOMDs-HtZoeyR90jnPBtokFGp7zo_xiO9p-c5GFiAsGfpcMp-fw5MeZ3o_EE-KLujZJTSpW2.jpg)

![SZ-KARIDGE 50103 cordless soldering iron, 1600mAh — 7](https://bargainpostbox.co.uk/i/4GeosCpXTmlXmMCm8OgrFEc9_cJab60FVBwULI5I4X6M6zi2Bo2kxAODhlP5PUasPg07fZl339vVBAeMZmYsRco0CJrmLZpuhoNGdi56CANXYd8jPli9vW70.jpg)