No It will give the laptop an overload and will wreck your laptop. Do not do it.
power cord
There are some power adapters that are designed for use on airplanes, but they are expensive and only offer a short addition to battery life.
Yes, you can use the Asus K53E laptop without a battery as long as it is connected to a reliable power source via its AC adapter. Running the laptop on AC power only is a common practice, especially when the battery is no longer functional or has been removed for maintenance
Well to make a laptop run/do stuff on yes. When the laptop is plugged in, it is taking in 75% of enegry but then the other 25% goes to the battery where it is stored for if you don't have the plug, then it will use the enegry from the battery.
Use DC to AC converter for car power outlet and then plug in your AC charger to the converter. I am use this method since 2 years, working fine but faced some problems like once burning car power outlet and weaken the car battery.
Your battery may be worn out. When you use electricity to run the laptop your battery should not be in your laptop. The power will run through the battery making it drain. Either replace your battery, or take it to get it check out if it is still under warrenty.
You will need to use the power cord and/or the battery in order to turn the laptop on.
Decrease the brightness of the LCD screen Use "screen blank", "standby" and "hibernation" modes to save power If you will not be using the computer for a long time, remove the laptop battery pack and store it in a cool place. Do not recharge until all battery power is used. Do not use the laptop battery until it is fully charged. And remember the best way to get the most from your laptop battery is to purchase a good quality produced battery like those by mcVolt.
Yes, the cassette is inserted into your car stereo which uses power from the battery.
Unlike the CRT monitor, LCD doesn't use as much power. So, the battery of the laptop is enough to power its LCD monitor. There is a power supply cables within the laptops. That cables carry the power from the battery to its LCD monitor and other power needed devices. It is the simplest answer of how is the LCD on the laptop powered?
I would use my laptop to check emails and such, and the battery, and well, nothing really I wouldn't USE my battery for anything except running my laptop which it already does on its own...