Monday, September 23, 2013

CD (capacitive discharge) battery welder

With all of the batteries I have around that are tab welded, I thought that having a tab welder would be handy. Looking at a commercial tab welders, I discovered that they are VERY expensive. They should be because they are meant for industrial purposes and overbuilt for heavy-duty use. I didn't need anything that large so I found this great article on the web.

How to build a battery tab welder for $100.
http://www.ledhacks.com/power/battery_tab_welder.htm

Two of the major components are a very large capacitor. Large meaning, greater than 1 Farad and also a high powered SCR (silicon controlled rectifier).

I was able to find some needed items for a great price recently. Here they are:



1 comment:

  1. That cap looks like a Pringles potato chip can!

    ReplyDelete