Explanation of icon.
Nickel Metal Hydride
Function name:Nickel Metal Hydride

Voltage : 1.2V/cell

Keeping Quality : capable of long storage (desirable to be kept in the state of discharge)

Price : more expensive than Nickel Cadmium

Charge Characteristic : constant current

Full-Charge Detection : a little difficult (using dT/dt detection)

Memory Effect : susceptible

Large Amount of Power Discharge : meagerer than Nickel Cadmium