Replacement 3.6V 700mAh Ni-MH Battery Pack for RADIO SHACK CLT2418 Cordless Phone. Restore your cordless phone's talk time with this high-quality battery. Matches original specifications: 3.6 Volts, 700mAh Capacity, Ni-MH Chemistry, and sized at 45.90 x 31.20 x 10.70mm. Compatible with numerous Radio Shack models.