can I use Ni-Cd rechargeable batteries with a bluetooth keyboard or mouse?

I should go for Nickel-metal-hydride (Ni-MH) batteries as they last longer than NiCads and don't have the memory problem if you recharge them while they still have a charge in them. There are also hybrid Ni-Mh which have a slower self-discharge when not in use. Examples on Amazon.com.

Rechargeable batteries work just fine in those devices. When I had those, I had a number of rechargeables and a fast charger. As you know, it, over time, saves money. I would get "brand" batteries.

Barry