Batteries in portable consumer devices (laptops and notebooks, camcorders, digital camera, etc.) are principally made using either Nickel Cadmium (Ni-Cd), Nickel Metal Hydride (Ni-MH) or Lithium Ion (Li-ion)...
Amazing wrist watch with vintage look! Just like the ones in 1980's, stainless steel, with green led light button, alarm chrono, water resistant (but not underwater). Recommend to all vintage collectors.
Recently, I was searching for decently large number of rechargeable batteries on Ebay, and all of the decent combined shipping deals I found averaged more than a retail site I have...