The range of rechargeable spotlights is quite staggering. I have cheap halogen lights with SLA batteries previously made by
Vector which is now owned by Black and Decker and I've got a
Maxabeam that I picked up cheap on eBay a few years ago. If you let us know how much you want to spend and your intended use, I'm sure the lot of us can come up with some good suggestions for you.
Craig