Nickel oxyhydroxide battery cells. Nickel oxyhydroxide battery Nickel oxyhydroxide battery (abbr. NiOx, IEC code: Z) is a type of primary cell. It is not rechargeable and must be disposed after a single use. NiOx batteries can be used in high-drain applications such as digital cameras. NiOx batteries used in low-drain applications, have a lifespan similar to an alkaline battery. NiOx batteries produce a higher voltage (1.7V) than alkaline batteries (1.5V) which can cause problems in certain products, such as equipment with incandescent light bulbs (such as flashlights/torches), or devices without a voltage regulator. The nickel oxyhydroxide cell is different from a standard alkaline
Nine-volt battery in Japan 006P. The PP3 size battery is . Both terminals are at one end and their centers are apart. Inside an alkaline or carbon-zinc 9-volt battery there are six cylindrical or flat cells connected in series. Some brands use welded tabs internally to attach to the cells, others press foil strips against the ends of the cells. Rechargeable nickel–cadmium (NiCd) and nickel–metal hydride (NiMH) batteries of nominal 9V rating have between six and eight 1.2 volt cells. Lithium ion versions typically use two cells (3.7–4.2 V nominal each). There are also lithium polymer and low self-discharge NiMH versions. Mercury