Sunkko 709AD vs 787A+ • Spot Welding Tutorial + Review + Teardown with Peter DIY POWERWALLS

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INGREDIENTS used in this video:
• Fluke 381 remote clamp meter (999.9A DC / 2500A AC): https://goo.gl/ef73GX
• Sunkko 709AD spot welder (better) select 110v or 220v: https://goo.gl/nDpGqD
• Sunkoo 787A+ spot welder (cheaper) select 110v or 220v: https://goo.gl/MozkZc
• Pen for Sunkko Welder HB-70B: https://goo.gl/UKCwXA
• 18650 cell holder: https://goo.gl/EUC7sH
• 18650 paper washer ring insulator: https://goo.gl/HFWm3A
• Heat resistant polyamide Kapton tape: https://goo.gl/qdTfHb

This is a comparison between two very popular eBay / Aliexpress spot welder models, Sunkko 787A+ (cheaper entry level) and the 709AD (more powerful) which is also very similar to the 709A (fanless) and 709AD+ models.

The video starts with a tutorial / introduction to battery spot welding, showing some settings and how to avoid problems. Talked about the different nickel tabs and how to detect if is fake nickel (steel core nickel plated tab), differences in nickel tab design (single strip vs stamped nickel tape).

Peter and I pulled the welders apart to inspect & compare inside and measure the inrush current with my Fluke 381 clamp meter. We were able to see how much surge current both welders pull from the mains and after the transformer (welding current). You will be surprised how much current these little welders are pumping, worth watching!!

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Who is Peter?
Peter started recycling laptop cells 2 years ago after watching Jehugarcia making batteries for his Electric VW Kombi on his YouTube channel. Peter loved the idea so much that he decided to scale it up and put his own twist connecting these homemade recycled batteries to his existing solar system instead. Peter started his project calling it "Homebrew powerwall" which was a budget / homemade version of the Tesla Powerwall.
Today Peter has a massive 60kWh battery bank that is much much bigger than the original Tesla Powerwall with 6720 recycled laptop cells, tested one by one and selected meeting his minimum capacity requirements.
Peter's videos ended up inspiring thousands of people all over the world what inspired him to create www.diypowerwalls.com forum and DIY POWERWALLS group on Facebook where his followers could share their own projects and inspire even more people out there!!
Peter, you're a true LEGEND mate!!

• Peter's YouTube channel: https://goo.gl/8ZxVF4
• Peter's complete project info: https://goo.gl/ggqQyK
• DIY POWERWALL
Facebook group: https://www.facebook.com/groups/diypowerwalls/
forum and 18650 cells database: http://www.diypowerwalls.com/celldatabase.php

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So much POWEEEEEEERR...

Видео Sunkko 709AD vs 787A+ • Spot Welding Tutorial + Review + Teardown with Peter DIY POWERWALLS канала BrunoPOWEEER