Cordless Phone Battery

Wireless phone battery
The batteries used in wireless phones are often nickel-cadmium and nickel-metal hydride. In newer phones, more than AAA batteries are used in phones, but in the past, batteries that put together 2 or 3 NiCd and NiMH batteries at AA, AAA, 1 / 2AAA, or 1 / 2AA and 3 / 4AA, and sequencing them in different shapes, sometimes with a fused wire, and sometimes in a mold, each with their own code and identifier, were identified on the phone Wireless was used and, of course, is now also used.
Building of Nickel Cadmium Batteries
Nickel cadmium batteries are a subset of rechargeable batteries in which nickel (III) oxide and cadmium are used as metal in the electrode position.

Building of nickel metal hydride batteries
Nickel metal hydride batteries are also battery-protected, with its positive electrode nickel oxyhydroxide and its negative electrode of hydrogen adsorption alloy.

The difference between nickel cadmium and nickel metal hydride is in their capacity. Nickel metal hydride is two to three times more delicate than nickel cadmium.