Most portable CD Players run on batteries, although there is a line Sony makes that is rechargeable.
Most portable TVs have the option to run the machine on batteries, Modern portable televisions are LCD and thus able to run off batteries for quite a long time before they die.
Portable dishwashers do not run on batteries. They are usually smaller and take up less space. They plug into a regular outlet and can go anywhere you put them.
It depends. There are batteries for the Toshiba portable dvd, but you can also use a charger to charge up the dvd. It can run for awhile w/out batteries. Here is a place to buy the batteries: www.ebatts.com �ۼ Portable DVD Player Batteries
its called an inverter
About 90 minutes long.
Most CD players run off of AA batteries. If you plan to use your CD player a lot, I would recommend investing in a good set of rechargable batteries. Not only will you save money in the long run, but you will be doing your part to save the planet.
Anyone with children can tell you all about the importance of a portable movie player on long trips. While everyone loves their kids, there is a certain breaking point that all parents have when they're pent up in a hot car for hours on end with screaming children. This is why a portable movie player is so important. When you're shopping for a portable movie player, it is important to keep battery usage in mind. Some movie players only use throwaway batteries, which is costly and inefficient. When you're trying to decide on which one you want to get, make sure you find one that has a rechargeable battery. Not only are these batteries cheaper in the long run, but they can be charge in the car as you drive.
Electric current, but the voltage required depends on the electrical standards of the country you are in.
Yes, there are some GPS handheld systems that run on batteries that need to be charged. This all depends on the manufacturer.
There are watches that wind as well as watches that run on batteries.
Screen sizes on portable dvd players for use in cars will never be as large as normal televisions, but they do have to be large enough for practical use. The sizes available tend to to run between 7 inches and 10.2 inches.
A portable boombox is one that you can take with you to the beach, on a boat or anywhere else where you wouldn't necessarily have access to an electrical outlet. They usually run on batteries and can have an am/fm radio and cd player along with other features.