KNOKOO 4-in-1 709AD+ Mig Pulse Battery Spot Welder Machine 1.9KW 20V DC Output Condition for 18650 14350 Battery Pack

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Section : Machinery
Category : Welding Equipment
SKU : 60746591410

KNOKOO 4-in-1 709AD+ Mig Pulse Battery Spot Welder Machine 1.9KW 20V DC Output Condition for 18650 14350 Battery Pack

The KNOKOO 4-in-1 709AD+ is a powerful spot welder. It helps you join battery cells easily. This machine works well for many projects. It is a top choice for making battery packs. You can use it for 18650 and 14350 batteries. The KNOKOO 709AD+ is strong and reliable. It gives you clean welds every time. This tool is perfect for hobbyists and small workshops. Let's look at what it can do.

Specifications

Attribute	Details
Brand	KNOKOO
Model	4-in-1 709AD+
Power (kW)	1.9 kW
Input Voltage	AC 220V/110V ±20V
Output Voltage	DC 20V
Welding Current	500A
Rated Capacity	25/35/50 KVA
Max Welding Thickness	0.35 mm
Rated Duty Cycle	60%
Dimensions (L x W x H)	140 x 245 x 200 mm
Weight	7.5 kg
Soldering Temperature	150°C - 450°C
Temperature Accuracy	±5°C
Heating Up Time	6-8 seconds to 300°C
Time of 2 Pulse	1-10 ms (Adjustable)
Time of 4 Pulse	2-20 ms (Adjustable)
Warranty	1 Year

Key Features

4-in-1 function for different welding needs.
High 500A welding current for strong joints.
Adjustable pulse times for precise control.
Fast heating up time – ready in seconds.
Portable design, easy to move and store.
Works with 110V or 220V power outlets.
Low power use at just 1.9 kW.
Comes with video technical support.
Free replacement parts for one year.

Applications

Building 18650 battery packs for laptops.
Making 14350 battery packs for tools.
Repairing battery packs for e-bikes.
Creating custom battery packs for projects.
Spot welding nickel strips to cells.
Small electronics repair work.
DIY projects that need battery connections.

The KNOKOO 709AD+ makes battery welding simple. You get strong welds with little effort. This machine is a smart

Product Info Gallery

Shipping Timeframes: All orders are processed within 2-5 business days (excluding weekends and holidays). After your order has been processed, the estimated delivery time is before 31 Aug, 2026, depending on customs, Please note that due to high demand, some items may experience longer shipping times, which will be communicated at order confirmation email.
Order Processing Time: Please allow 2-5 business days for us to process your order before it is shipped . Orders placed after 16:00 on Fridays, or during weekends and public holidays, will begin processing on the next business day. Processing times may be extended during peak seasons or sales events.
Manufacturing Time: Some products needs manufacturing time, the manufacturing process will take approximately 10-30 business days depending on the product. This timeframe may vary depending on the complexity of the product and current demand. but this will be communicated with you during order confirmation.
Returns and Exchanges: We offer a 30-day return policy for most items. If you are not completely satisfied with your purchase, you may return it within 30 days of receipt for a refund or exchange. Items must be unused, in their original packaging, and accompanied by proof of purchase. Return shipping costs are the responsibility of the customer, unless the item was damaged or defective upon arrival.

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