After charging laptop it will 3 to 4 hours backup
Laptop battery life depends on a variety of factors. Typcially Dell has higher rated batteries.
The average life for a laptop battery is between 3 to 4 hoursand sometimes even less than 3 hours.
Automotive batteries tend to last between 3 and 7 years.Automotive batteries tend to last between 3 and 7 years.
Batteries that comes specific to your camera tend to last the longest, but for rechargable AA batteries, the the new hybrid Nickel-Metal Hydride (Ni-MH) are considered the best.
A good place to find replacement batteries for Dell laptops is eBay. It is possible to find batteries for less than $10, but they might not last as long as Dell-manufactured batteries.
If the BIOS (Basic IO) battery is the one one you are asking about. It is a lithium battery which should last for up to 7 years. It is difficult to be accurate but, laptop batterys can last around three years, however this depends how you use them. They last around a thousand charges, but this is if you recharge them 10 percent or 100 percent. A laptop battery left in continuously charging cause the laptop to overheat and the battery will loose performance very quickly.
Samsung laptop and hp laptop batteries are really good and last very long.As my laptop give minimum of 6 hours of internet browsing .
There is some difference between the phones but you will actually get you battery to last longer by changing the operatin functions. By turning off applications that you do not require your battery will last for a longer period of time between charges.
No, batteries don't charge faster when around magnets. It charges at the same speed.
It depends on usage. But laptop batteries last anywhere between 12-24 months. My laptop battery needs to be replaced because it will not charge all the way and it is 19 months old. If possible, Replace it with a 9 cell for longer life and it will hold a charge longer too.
You can find good batteries that last a while on Best Buy and Fry's sites. But you should know that it also depends on your laptop brand and model on how long your battery will last.
According to manufacturers, you should never remove the battery when the computer is plugged in. Removing the battery does not extend battery life because all batteries have "shelf" life and are no good after a certain time. Today's batteries actually will last longer if you keep it in the laptop.