Remote controls can use either standard AA and AAA batteries or include a custom rechargeable pack. Battery life is determined by many factors, including backlighting, LCD screen, the amount of use and signal strength. The average battery life for an all-hard button remote control is greater than one year, while backlit LCD models may go anywhere from several weeks to several months. See also: battery type, memory backup, rechargeable, LCD screen, backlight.
Digital camera batteries include: Nickle cadmium (NiCad) rechargeable batteries. They use an alkaline electrolyte, have a longer life than non-rechargeable and have memory. A nickel metal hydride (NiMH) rechargeable battery lasts longer than a NiCad and has no memory. Lithium ion batteries are more costly than the NiCad or NiMH, but hold a charge much longer.
Types of batteries for wireless or cellular phones listed below illustrate some of their advantages and disadvantages. Most cellphone handset units will accept a "standard" or "extended" battery, with additional output of the extended adding to the length of time the battery will power the handset. Battery types NiCad or NiCd means Nickel Cadmium. Nimh refers to Nickel Metal Hydride. Li is for Lithium. Most cell phones manufactured today are equipped with lithium batteries. Thers are far superior to the older and less expensive ni cad batteries. Here are their distinguishing characteristics