The SeeSii 801D is not just a tool; it’s a finely-tuned instrument, a maestro conducting a symphony of electrical pulses with unparalleled precision. This 12KW capacitor energy storage pulse battery spot welder is a powerhouse, yet it operates with the delicate touch of a master craftsman, and it’s this dual nature that sets it apart. The 73B welding pen, its faithful and versatile companion, acts as an extension of your own hand, allowing you to reach and weld with an effortless grace that belies the immense power being harnessed. It supports two distinct welding modes, which are like different gears in a high-performance machine, enabling you to switch seamlessly between subtle, precise work and more robust, industrial applications. Consequently, whether you are a hobbyist meticulously piecing together a DIY project or a professional tackling demanding manufacturing tasks, the SeeSii 801D: Capacitor energy spot welder delivers consistent, high-quality results. Furthermore, its ability to handle 0.1-0.3mm nickel strips with enhanced efficiency means it can tackle a wide range of materials, thereby solidifying its position as a truly indispensable tool in any workshop.
Imagine the SeeSii 801D as a lightning bolt captured in a box, ready to unleash its immense power at your command, but instead of being destructive, it is creative. This is the essence of the SeeSii 801D: Capacitor energy spot welder. The capacitor energy storage system is the secret to its success; it’s a deep well of energy that allows for incredibly fast and powerful discharges, resulting in strong and clean welds with minimal heat deformation. Consequently, the welds are not just functional; they are aesthetically pleasing, almost like tiny, metallic stitches that hold your creations together with unwavering strength. In addition, its pulse welding technology is akin to a heartbeat, delivering quick, precise bursts of energy that prevent the surrounding material from overheating. Indeed, this is a critical feature, for it ensures the integrity and longevity of your battery packs and other welded components. Therefore, the SeeSii 801D is more than just a piece of machinery; it is an alchemist’s tool, transforming raw materials into a unified whole with a whisper of electricity and a flash of light.
Ultimately, the SeeSii 801D offers an experience of power and control that feels both intuitive and exhilarating. Its design is a testament to thoughtful engineering, balancing raw capability with user-friendly features. The interface is simple and straightforward, so you can focus on the task at hand rather than wrestling with complex settings. Because of its robust construction, the welder feels substantial and reliable in your hands, giving you the confidence to undertake even the most challenging projects. Moreover, the enhanced support for a wide range of nickel strip thicknesses makes it exceptionally versatile, proving that it is a tool built for longevity and adaptability. In summary, the SeeSii 801D: Capacitor energy spot welder is the final word in a category of welders, a beacon of efficiency and precision for anyone who values craftsmanship and performance. Therefore, whether you are building intricate battery packs or performing essential repairs, this device will become an indispensable part of your toolkit, a silent partner in your creative and professional endeavors.
FEATURES:
– 12KW capacitor energy storage
– Supports 2 welding modes
– Comes with a 73B welding pen
– Welds 0.1-0.3mm nickel strip
– Suitable for DIY and industrial use
– Adjustable welding power
– Dual pulse welding
– Built-in cooling fan
– LED light for night work
– Foot pedal included
The SeeSii 801D is a 12KW capacitor energy storage spot welder designed for both DIY and industrial applications. It features a 73B welding pen and supports two welding modes, including dual-pulse welding, to handle 0.1-0.3mm nickel strips. The machine has adjustable welding power, a built-in cooling fan, an LED light for low-light conditions, and comes with a foot pedal for convenient operation.
– Works great on pure nickel
– Handles 0.20mm nickel
– Easily handle 0.30mm nickel
– Excellent value for the money
– More then satisfied
– Good for .20 to .25mm nickel
– Rather consistent for 20-30mins
– One of the few that work
– Works
– Adequate welds
– Cannot reliably weld 0.3mm nickel
– Struggles with 0.2mm nickel strip
– AC adapter is too short (2 feet)
– Welding pressure adjustments are weak
– Stopped working after 2 uses
– Lever mechanism was defective
– Soldering iron was weak and failed
The SeeSii 801D Spot Welder is a powerful and versatile tool for both DIY and industrial use. It features 12KW of power, capacitor energy storage, and a 73B welding pen. Users report that it works great on pure nickel strips and can easily handle 0.20mm to 0.25mm nickel, with some users even successfully welding 0.30mm. It is considered an excellent value and one of the few welders that consistently performs well for 20-30 minute sessions. However, some users have noted issues with the device, including an adapter that is too short, weak welding pressure adjustments, and inconsistent performance when welding thicker 0.3mm nickel. A few users also reported that the unit stopped working after a couple of uses, and there were some complaints about defective lever mechanisms and weak or failing soldering irons. Read more…
SeeSii 801D Spot Welder: Auto and Pedal Modes

The SeeSii 801D spot welder has two operational modes. The AT Mode is an automatic mode. It is suitable for fast and efficient use. It is ideal for welding large quantities of battery packs. The MT Mode is a manual or pedal mode. It is convenient for fine-tuning the welding process. This mode is good for debugging and precision work. This device is suitable for various settings, including household, factory, and commercial use.
12KW Pulse Output Welder for Battery Pack Assembly

A man is using a SeeSii 801D 12KW pulse output welder. He is building a large battery pack. The welder is a compact, red device with a digital display. He is holding two welding probes. He is applying the probes to the top of the battery cells. The probes are attached to the welder by thick cables. The process creates sparks and smoke. This shows the spot-welding process used to connect individual battery cells.
A spot welder demonstrating its capability to weld nickel sheets of varying thicknesses for battery pack assembly.

The image shows a SeeSii 801D Spot Welder in action. It highlights the device’s ability to weld nickel sheets with thicknesses ranging from 0.1 mm to 0.3 mm. The visual demonstrates how the welder fuses these sheets to cylindrical battery cells, a common process in creating battery packs. The image also includes a digital caliper measurement of a 0.3 mm pure nickel sheet. The bottom section of the image provides close-up views, showing the quality of the welds on 0.1 mm, 0.2 mm, and 0.3 mm sheets.
Universal Voltage Compatibility for SeeSii 801D Spot Welder

This image highlights the universal voltage compatibility of the SeeSii 801D spot welder. The device can operate on a wide range of power inputs, from 100 Volt to 240V. This makes it suitable for various settings. It can be used in a household, a factory, or a commercial environment. The red arrows and text on the image emphasize this feature, pointing to the 100 Volt and 240 Volt limits. The main display shows the machine’s current settings, indicating its precision welding capabilities.
Compact Capacitor Energy Spot Welder

The image shows a SeeSii 801D capacitor energy spot welder. It has a main red unit with a digital display. The display shows settings like voltage and pulse time. There is a foot pedal for operation. A red and blue welding stand is also visible. The stand holds the welding probes. A separate handheld welding pen is included. The pen is blue and black. This setup is for precision welding.
SeeSii 801D: A spot welding setup for precision work

This image shows the SeeSii 801D, a capacitor energy storage precision welding machine. It’s designed for use with a handheld spot welder and an integrated welding pen. The setup includes the main red unit, which has a digital display showing voltage and energy settings. An output cable connects the machine to the handheld welding pen. A battery holder with several blue cylindrical batteries is also visible, indicating the device’s use for battery pack assembly and other small-scale welding tasks.
SeeSii 801D Rocker Type Down Pressure Spot Welder

The image shows a SeeSii 801D rocker type down pressure spot welder. It is a machine used to weld battery packs. The welder applies pressure from above. The two electrodes are visible. The machine is welding multiple cylindrical batteries together. The recommended distance between the electrodes is 4-9mm. The product is designed to be easy to operate. It also has pressure regulation.
Versatile Industrial Welding for Electronics

This image shows a professional industrial welder, specifically the SeeSii 801D, used in various applications. It highlights its use in battery pack maintenance and batch welding. The pictures show a person working on a laptop’s circuit board. There are also images of a car battery, a coin-cell battery on a circuit board, and a DIY battery pack setup. These images demonstrate the welder’s versatility for different welding tasks and materials.
SeeSii 801D Spot Welder Packing List

The image displays the contents of a SeeSii 801D spot welder kit. It shows the 801D Spot Welder machine, a pedal switch, and a quick charging adapter. The kit also includes a 73B welding pen and a rocker arm welding tool. Accessories like a spot welder base, two packs of welding needles, and a battery clamp are present. Additionally, there’s one pack of welding pen pins and two different sizes of nickel strips.






















