My cell phones, my GPS for my car, my mustache trimmer, you name it: they all gave a recharger for the battery. NONE of them have a label indicating the device they are for!
I've a drawer full of these transformers that I negligently failed to label with their application. I can find and buy these charging units on the internet with the information that is on their labels, but the sites do not inform which items they work for.
Why can't the manufaturers put xyz telephone, suchandsuch GPS, etc. on the recharger they enclose with their device???? The labels are on the devices, on the boxes they come in, on the wrappers they enclose for protecting the devices.
But the rechargers are all generic with no indication of which device they are for!
Bah! Humbug!