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Notice 

1.  When building battery pack with Sunkko welders, if the home circuit system keeps 

tripping, please replace your Circuit Air Breaker. For 110V version machine, the Circuit 
Air Breaker in your circuit system should be higher than 40 A.  For 220V version 
machine, the Circuit Air Breaker in your circuit system should be higher than 30 A. 

2.  Please put on gloves and mask during your battery pack welding process to protect 

yourself(Sparks may occur during welding process). 

3.  Unplug the welder when you are not using the welder. 
4.  During your welding process, the instantaneous large current generated by the welder 

may  cause the lighting equipment under the  same power system flash  and it is 
considered normal. 

5.  Do not short circuits during spot welding or charging. 
6.  Do not use Sunkko welders with a voltage transformer as Sunkko welders are not 

compatible with the common voltage transformers in the market. 

7.  Continuously spot weld too fast will speed up the loss of internal components of the 

spot welder. We recommend that the time between each spot welding should be 3 
seconds or longer. 

 

Warranty information

 

1. What is covered? 

This limited warranty covers defects in main machine. 

 

2. What is not covered? 

  The warranty does not cover any damage caused by the owner modifying, 

attempting to fix, or otherwise altering the machine.   

  The consumable accessories are not in coverage, such as welding pen, 

cooper rods and nickel strips. 

 

3. How long does this coverage last? 

The warranty lasts one year since the date of original purchase of the product. 

 

4. Who is covered? 

This limited warranty covers only the original purchaser of the product on 

sunkko.net. If you need warranty service, please contact us at 

[email protected] directly and provide us your order ID. 

 

If you still have questions on sunkko products, please go to th

blog

 category 

on https://www.sunkko.net/ or email 

[email protected]

. We are happy to 

assist you. 

Summary of Contents for 797DH

Page 1: ...Model 797DH Thank you for choosing Sunkko 797DH battery spot welder let s now make the building of Lithium battery pack for our projects more convenient and efficient Manual ...

Page 2: ...set On the basis of sunkko 709 series LCD we added an extra part to show the dynamic welding current and pulse quantity during the welding process The value at the lower left corner stands for the dynamic welding current 0 1 equals to 100 amps The value at the lower right corner is the dynamic pulse quantity The right pulse quantity will be displayed after the first welding when you adjust the pul...

Page 3: ...797DH can also be used with our professional welding desks ...

Page 4: ...welding area and this design is popular among electric hobbyist because they can build large lithium battery packs for their e bikes or other projects Welding range 0 05 0 2mm for nickel plated steel 0 05 0 15mm for pure nickel strip Preparation steps 1 Insert mobile welding pen 2 Plug in foot pedal 3 Turn on the main power switch 4 Weld your batteries with mobile welding pen along with the foot p...

Page 5: ...0 25 mm Mobile welding part Welding thickness for nickel plated steel 0 05 0 2 mm Welding thickness for pure nickel 0 05 0 15 mm Specification for mobile welding pen 70B Welding needle distance adjustable 2 7 mm Total length approx 22 4 Cable cross sectional area 16mm2 Dimension of welding pins 1 5x7mm Others Product dimension 14x25x20cm Item weight 7kg Packing List 797DH main machine 1 pc mobile ...

Page 6: ...ible with the common voltage transformers in the market 7 Continuously spot weld too fast will speed up the loss of internal components of the spot welder We recommend that the time between each spot welding should be 3 seconds or longer Warranty information 1 What is covered This limited warranty covers defects in main machine 2 What is not covered The warranty does not cover any damage caused by...

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