DIY 360F Supercapacitor Car Starter Guide

If you're interested in making a DIY 360F supercapacitor car starter, you might want to check out this article.

You just need to prepare one 360F supercapacitor, add a casing, and install four terminals, and you're basically done.

For the casing, you can use heat-shrink from a soda bottle, a plastic fruit box, or anything similar as long as it's about the same size. You can also skip the heat-shrink part if you want.

Next, you need to make the cable lugs, which is actually pretty easy. Use a black wire for the negative terminal, and if you feel the core isn't thick enough, just run two wires in parallel.

For the positive terminal, you should use a different color to clearly tell it apart. Find a wire, and if you think the core still isn't thick enough, you can bundle three wires together into the lug, as shown in the picture below.

After that, the finished supercapacitor should look like the picture below.

The negative terminal should be connected to ground (Φ10 mm copper lug), as shown in the picture below.

For the positive terminal, you can choose a commonly used three-pin connector, as shown in the picture below.

As shown in the picture, the positive and negative terminals are very clear. You really need to pay attention here, because mixing them up on a supercapacitor is absolutely not an option.

Finally, after installing everything in place, you still need to take care of waterproofing, and then the whole thing is finished.

If you feel the casing is a bit too big or not a good fit, you can always find a better one and replace it yourself.

Done.