Because even though the electronics in the car run off the battery the alternator is constantly putting a charge back in the battery as long as the engine is running.
The Honda Civic Hybrid will run fine on a dead battery, but acceleration will be sluggish.
It depends on the type of laptop you have.
A Compaq nc6000 will run on ac power when the battery is dead. The battery is long lasting but it can be charged by using ac power.
It would only run as long as the battery had a sufficient charge.
The car boosting should run for ten minutes or so. The car with the dead battery will need to be charged for 8 hrs with a battery charger, but as long as the battery is good a 1hr run will likely allow the car to start again.
After jump starting a car, the battery should run for at least five minutes. You want to get enough juice in the battery before attempting to turn it off.
Depends on what is connected to the battery and the load that item is pulling.
Of course laptop can run with a battery as long as the battery is in good condition. If you battery have some problem with charge, you may need to buy another one. And you may shop here, i bough one recently, and it runs quite fair.
Yes, as long as you can get it cranked with one.
That depends on the Amp-hour capacity of the battery and the power requirement of the TV when it's on. If the TV isn't designed to operate on 12 volts, then it won't run at all, no matter what the capacity of the battery is.
Not Long... 7-10 min at best.