Yes, heaters require a lot of power, however, it you use 12 volt DC deep cycle batteries running through an AC inverter, you can utilize an electric heater which is normally plugged into a wall outlet. This configuration will cost approximately $250 to $350 but effective.
Mainly all laptop are power by a cord. Usually its the kid version laptops that can run on batteries, but not the professional ones.
There are new registers that can run on both batteries and electricity.
Tankless water heaters are low energy because they only run when the hot water is needed.
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.
Rechargeable batteries are more expensive than disposable batteries initially but pay for themselves in the long run if you use them consistently. Consumer reports has a report on the best and worst ones.
Propane heaters cost less to run per hour.
Yes,they do. and if a cars' batteries run out you have to get a new one.
Same kind of batteries as any other auto.
yes. you can run dual batteries
Rechargable batteries have many great advantages. One of the advantages is that you will save money in the long run. You will be able to use them a lot longer that regular batteries. It can also help you if you need batteries at the last minute and dont have time to go buy new ones.
In a long term, recargebale batteries are cheaper than any brand of one-time batteries on the market.
Most GPS systems now including tomtoms do not run on disposable batteries but lithium rechargeable ones. They are made to plug into a car's lighter to maintain a constant charge but also have an AC adapter available.