Review on 💡 LAMPVPATH (Pack of 5) 9v Battery Holder with Switch for Convenient Power Supply by Jesus Jenkins

I bought them thinking I could tie their center negative wire to my guitar pedals. I am an advanced guitar and electronics maker. But a small cover over the internal wiring rests on small pins that break at the slightest bend, as does the cover itself. On the next attempt I routed all the wiring outside of the box, using heat shrink to cover the connectors. It worked, but the wires are thin, about 26 ga, easily tangled and broken. 9V terminals are the cheapest metal, so don't try to bend them further. Also, the on-off switch made popping noises in my horn every time the box moved slightly. They are designed for Arudino kits and can be a cheap option, but they are not suitable for guitar pedals.