Brand: Ultralast. MPN: UL116. Does your cordless phone need a replacement battery? Check out the Ultralast 3AA-W Rechargeable Replacement Battery! This replacement 3.6-volt, 600 mAh Nickel Cadmium (NiCd) battery fits the Ameriphone Dialog CL40 Cordless Phone and meets or exceeds original manufacturer specifications.  Features. 3.6 volts, 600 mAh; Long-lasting; Rechargeable.