We have created a spot welding machine for electrode tab welding that operates using a battery as the main power supply.
Significantly upgraded the previously produced spot welding machine.
Specifically, timer control was introduced to achieve uniform welding quality. Welding strength has been improved by improving the welding tip.
Previous video    • 【電子工作DIY】バッテリー式スポット溶接機を作ってみた【リチウムイオン】...  
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★ Purchase link (including AMAZON associate link)
Omron timer relay (12V input) http://www.ia.omron.com/products/fami...
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12V relay https://amzn.to/2V9jB2V
Pedal switch https://amzn.to/2VaYYTT
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Crimping tool https://amzn.to/3bbOPOs

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