Twicell Nickel-Metal Hydride (Ni-MH) Batteries

What is a Twicell Nickel-Metal Hydride Battery
It's a secondary battery which lasts more than twice as long as CADNICA batteries. Twicell uses hydrogen absorbing alloys in its negative electrode (anode) and nickel oxide in its positive electrode (cathode). Since its release, the first in the world in October 1990, the "Twicell" sealed Nickel-Metal Hydride battery has developed a strong reputation for high capacity, high performance and high quality. In November 1996, Sanyo was the first manufacturer in the world to achieve 300 million cells accumulatively.

The HR-4/3AU (3,500mAh) is a new battery (volumetric energy density: 300Wh/l), first marketed in May 1996, that well exceeds the volumetric energy density of lithium-ion batteries. Sanyo released another Twicell battery of even higher capacity (volumetric energy density: 340Wh/l) in the end of 1997. In addition, the new Twicell HR-4/3FAU(4,000mAh), released in September 1996, was specially designed for notebook computers and has the same diameter (18mm) as the lithium-ion UR18650 battery

Feature
	High volumetric energy density well exceeding that of Lithium-ion batteries (HR-4/3AU and HR-4/3FAU).
	Double capacity of standard CADNICA batteries.
	Can be used over and over (more than 500 times with a specific charger).
	1.2-1.6 hour quick charge with a specific charger.
	Compatible with Nickel-Cadmium batteries (almost same discharge voltage).
	Produced under a ISO9002 certified quality control systems.

Applications
Notebook computers

Cellular phones, PHS phones, telecommunications equipment

Video cameras, digital still cameras, PDA

Shavers, electric toothbrushes

Various portable equipment