No set answer to that, it depends on the size/capacity of the battery and what it's powering.
5 hours
The answer will depend on the battery, and the amount of power it is required to deliver.
That depends on the amount of power being drained from it.
No set answer to that. It depends on the capacity of the battery and the power consumption of what it's connected to.
The battery life has an average of 4 hours depending on what programs you have running and your power settings.
It would depend on the power consumption of the device in use.
Depends which size of battery, what you are powering with it (motors take more power than radios), and which grade of battery you are using.
No set answer to that. It depends on the capacity of the battery and the power consumption of the flash light.
The battery in the ASUS Eee 1000HE will provide 9.5 hours of computing power based on system configuration and/or usage.
a car battery last for about 3-5 years
It really depends on the computer model. I think what ur trying to ask is how long does the battery last, 6 to 8 hrs I think.
With no charging the battery could last a few minutes. There is a large amount of power needed to move a car forward. Starting would shorten the time.
Not exactly "damage", but if you keep it on the charger all the time, then the battery capacity may appear to decrease, i.e., the battery won't last as long when you do use it. Think of the battery as a muscle.