Since I’m starting to use more 9V rechargeable batteries, I thought it would be a good idea to build a simple 9V rechargeable battery for my friendly guitarist instead of having to urge him to look ...

Sure you could go buy a USB charger off the shelf, but what fun would that be? Try making one yourself with a little help from a 9V battery and a few extra components. This simple hack on a standard ...

When you’re building your own custom electronics projects, a simple power switch isn’t always easy to find. If you have some DIY projects that use 9V batteries, this super small power switch is fairly ...

Electronic enthusiasts looking for a way to control power to the next project from a 9 V battery may be interested in a small device called snapVCC. Available to purchase from the Crowd Supply website ...

I came across a Gizmodo post with an eye-catching photo of a disemboweled 9V battery – apparently taken from the Axe Collector source post, “Why I Never Pay For “AAA” Batteries“. Axe Collector has ...