The Panasonic BAT-CR2450H-P is a 3.0 Volt lithium coin cell battery. It is a reliable source of power for a variety of electronic devices, including watches, calculators, remote controls, and keyless entry systems. It has a capacity of 540mAh and a diameter of 24.5mm, with a height of 5.0mm. Additionally, this battery has a nominal voltage of 3.0 Volts. The BAT-CR2450H-P is a fast-acting primary battery and has a high energy density and withstands extreme temperatures. Additionally, this battery requires no memory effects, so it can be charged and discharged multiple times without losing its overall capacity.