. . .because if there is one thing we here in the robunker seek to promote, it’s the correct misuse of dangerous power tools.

The fine, fine folks at Instructables send us this fine fine shop tip for our Shop Tip List:

Nicad batteries often die in such a way that they won’t take a charge and have zero voltage. This usually means they’re shorted out by crystal dendrite growth.

Here’s a method of bringing them back to life by zapping those shorted crystal dendrites away with too much current and/or voltage. We’ll use a welder as a power source. You could also use a car battery, a DC powersupply, or almost anything with some voltage.

There are step by step instructions that follow, but my favorite part is the first warning:

If you get killed by a poisonous explosion it means you did something wrong.

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