Every laptop battery is given a power rating in order to show you, the consumer, about how long your Dell Inspiron 1520 Battery should last before it needs to be recharged. These electrical specifications are given using volts (V) and milliAmps (mAh). For example, you may see your Dell Inspiron 1520 Battery is given a rating of: 10.8V, 4000mAh.
Volts and milliAmp hours are used because they measure the amount of energy used by a Dell Inspiron 1520 Battery. A volt (V) is a measurement used for the amount of pressure the positive and negative electrodes produce in a laptop battery during the process of discharging energy. Amps (A) measure the amount of resistance the energy in your Dell Inspiron 1520 Battery produces in order to power a laptop.
You may also notice that increasing the size of the pipe and shower head without having to open the faucet all the way will produce similar results. This is an example of the amount of resistance in the flow of energy. Measuring this resistance is measured in terms of amps. In terms of a Dell Inspiron 1520 Battery, the amount of resistance is dependant on the size of the Dell laptop battery and the amount of energy inside.
Laptop ratings are given in terms of amp hours (Ah). Amp hours measure the length of time a Dell laptop battery will discharge energy before it needs charging. In order to adequately measure v, manufacturers use milliAmp hours (mAh). This means that every 1000mAh is equal to 1Ah. What does this mean for your new Dell Inspiron 1520 Battery? If your original Dell Inspiron 1520 Battery is measured at 2500mAh and your replacement Dell laptop battery is measured at 5000mAh, then your Dell Inspiron 1520 Battery run time will double.

Dell Inspiron 1520 Battery brief information:
Dimension : 226.90 x 66.90 x 22.75 mm
Net Weight : 460g
Brand :Replacement

Dell Inspiron 1520 Battery Description:
Voltage: 11.1V
Capacity: 4400mAh
Type: Li-ion, 6 cells
Number of cells: 6
Condition: new
UL certificated cells inside!
100%OEM compatible, guaranteed to meet or exceed OEM specifications!
Keep in mind that technology constantly changes. Your old Dell Inspiron 1520 Battery may be rated at a lower run time than a newer one because of technological advancements that have produced longer lasting laptop batteries. If you are looking for other Laptop Accessories, laptop battery or Dell laptop battery, you can look here: PA-6(Power: 70W )
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