Docreate 756 Handheld Spot Welder 800A – 11-Level Adjustable
Original price was: 3,000.00 EGP.2,600.00 EGPCurrent price is: 2,600.00 EGP.
The Docreate 756 Handheld Spot Welder is a compact rechargeable welding tool for attaching nickel strips to 18650 and other cylindrical battery cells. It features 11 adjustable power levels, automatic and manual welding modes, an LED status display, replaceable copper electrodes, a 3000mAh internal battery, and USB Type-C charging.
Docreate 756 Handheld Spot Welder
The Docreate 756 Handheld Spot Welder is a compact rechargeable tool designed for assembling and repairing lithium battery packs. Its integrated design combines the power source and welding electrodes in one handheld unit. Therefore, it does not require a separate welding pen or a large external power supply.
This portable spot welder is suitable for attaching thin nickel-plated strips to 18650 and other compatible cylindrical battery cells. It is ideal for electronics workshops, DIY battery projects, repair technicians, makers, and educational applications.
11 Adjustable Welding Levels
The Docreate 756 Handheld Spot Welder provides 11 adjustable welding levels. This allows the user to select the welding pulse strength according to the thickness and type of the metal strip.
Lower levels are suitable for very thin battery tabs and delicate applications. Medium levels are recommended for approximately 0.10mm nickel-plated strips. Meanwhile, higher levels can be tested with 0.12mm and 0.15mm strips.
The manufacturer states a maximum welding thickness of 0.25mm. However, welding performance at 0.20mm or 0.25mm depends heavily on the strip material, battery charge, electrode condition, surface preparation, and user technique. For consistent battery-pack assembly, 0.10–0.15mm nickel-plated strip is the recommended working range.
Automatic and Manual Welding Modes
The unit supports both automatic and manual operation. In automatic mode, the welder detects contact between both electrodes and the metal strip before delivering a welding pulse.
In manual mode, the user positions both electrodes on the strip and presses the welding button to trigger the pulse. Consequently, manual mode provides additional control when working with unusual battery shapes or precise welding positions.
Key Features
- Portable handheld spot-welding design
- Suitable for lithium battery-pack assembly
- 11 adjustable welding power levels
- Automatic and manual welding modes
- Maximum advertised output current of 800A
- Integrated 3000mAh rechargeable battery
- USB Type-C charging interface
- Recommended 5V/1A charging input
- LED indicators for power, mode, and welding level
- Replaceable copper welding electrodes
- Automatic shutdown after approximately eight minutes of inactivity
- Lightweight ABS housing
- Protective electrode cover
- Multiple operating and battery safety protections
- No external welding pen required
Technical Specifications
| Specification | Value |
|---|---|
| Brand | Docreate |
| Model | 756 |
| Product Type | Handheld battery spot welder |
| Welding Levels | 11 adjustable levels |
| Operating Modes | Automatic and Manual |
| Internal Battery Capacity | 3000mAh |
| Charging Interface | USB Type-C |
| Recommended Charging Input | 5V DC, 1A |
| Output Voltage | 4.2V |
| Maximum Advertised Current | 800A pulse current |
| Recommended Strip Thickness | Approximately 0.10–0.15mm |
| Advertised Maximum Thickness | Up to 0.25mm under suitable conditions |
| Display Type | LED indicators |
| Electrode Type | Replaceable copper needles |
| Housing Material | ABS plastic |
| Product Dimensions | Approximately 196 × 41 × 25mm |
| Approximate Weight | 142.4g |
| Automatic Shutdown | After approximately 8 minutes of inactivity |
Suggested Welding Levels
| Material or Thickness | Suggested Level |
|---|---|
| Thin mobile-battery tabs | Levels 1–3 |
| 0.10mm nickel-plated strip | Levels 3–6 |
| 0.12mm nickel-plated strip | Levels 6–11 |
| 0.15mm nickel-plated strip | Levels 6–11 |
| 0.20–0.25mm strip | Highest levels; testing required |
These settings are starting recommendations only. Always begin with a low level and test the weld on a sample or discarded cell before increasing the welding power.
Common Applications
The Docreate 756 Handheld Spot Welder can be used for:
- Building 18650 lithium battery packs
- Repairing compatible battery packs
- Attaching nickel strips to battery terminals
- DIY power-bank battery assemblies
- Electric bicycle battery maintenance
- Portable lighting battery projects
- Robotics and electronics power packs
- Workshop and laboratory battery experiments
- Mobile-device battery-tab repair
- Small-scale battery production and prototyping
Operating Instructions
Fully charge the unit before first use with a regulated 5V/1A power source. Clean the battery terminal and nickel strip before welding because oxidation, oil, and dirt can reduce weld quality.
Select a low welding level initially. Position the nickel strip over the battery terminal, then place both copper electrodes firmly and evenly on the strip. In automatic mode, the unit applies the welding pulse after detecting contact. In manual mode, press the welding button after positioning the electrodes.
Inspect the weld after each test. If the strip separates easily, increase the power gradually. However, if the strip becomes black, burns through, or damages the battery terminal, reduce the welding level.
Safety and Maintenance
Spot welding battery cells requires care. Never weld a damaged, leaking, swollen, rusted, or overheated lithium cell. Avoid repeated welding in the same position because excessive heat can damage the cell.
Keep the electrode tips clean and smooth. If oxidation appears, polish them lightly with the supplied abrasive paper or fine sandpaper. Additionally, allow the unit and electrodes to cool during repeated operation.
Only charge the device using a 5V/1A supply. Do not use high-voltage fast-charging adapters unless they can provide a standard 5V mode. Finally, store the welder with its protective cap fitted in a dry location away from metal objects and moisture.
