6PCS 9V Battery Holder,9 Volt Battery Holder with Leads，Widely Used in Student Experiments,LED Strips or Other Devices with 9V Batteries (6 Pack)

Like them, & like how they have just a few simple modular parts. Easy to take the 9v T connector & switch out by carefully prying. Was able to Dremel in a weather resistant switch opening making one of these a compact 12v lighting switch box. Will next use 2 of these (no adapting needed) for 9v, toolbox ,Led lighting.

Battery packs I will buy again!

Really pretty handy. I like the on/off switch. They seem to slide well together and should hold the battery securely. The only negative is the battery is difficult to install the first time. The prongs are snug. After removing and installing a couple of times they seem to be good.

Perfect for hobby led project. Helped the kids build some diorama boxes with LEDs wired in for lighting effects. These boxes were great for taking all the wires and simply splicing them in so you can switch the box on and off and have everything neat and bundled together.

Good to have around if you have projects and need a perhaps makehifts!!

Good little battery holders and switch

The best feature of this holder is the built-in on/off switch. For me it saved me the trouble of having to wire in a new switch. I also really like that the 9v battery snaps in easily and stays secure. The case itself opens when you want it, but stays closed otherwise. There is an included screw to keep the case closed but I didn't need it, but it's nice to have.

It is OK, but a bit cheaply built. Not that it lacks sturdiness for its purpose, but it's hard to get the cover off to change the battery. I doubt the switch will have a long life.Biggest complaint is the super-thin gauge of the connecting wires. I guess 28-30 awg? They won't hold up to much stress.That said, they're inexpensive, so not the worst choice.