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Laptop battery can show up in auctions, sold by folks who have an interest in Batteries. Consider:

Laptop battery has been available in the past as:

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Did you know the following facts about Batteries?

Protection index (IP) - Index indicating the capacity of an electrical device to resist environment conditions. It is made up of three digits (e.g. IP 205), each corresponding to a type of environmental risk. The higher the number, the greater the capacity to resist. First digit (0 to 6) - capacity to resist penetration by solid objects. Second digit (0 to 7) - capacity to resist penetration by liquids. Third digit (0, 1, 2, 3, 5, 7, 9) - mechanical strength.

Inverter - UPS subassembly that recomposes a sine-wave output (regulated and without breaks) using the DC current supplied by the rectifier-charger or the battery. The primary elements of the inverter are the DC/AC converter, a regulation system and an output filter.

Load (non-linear) - Load (generally with a switched-mode power supply) generating major harmonic currents. Current wave form is different from voltage wave form. Ohm's law is not applicable. It can be used only with each harmonic.

Switching Transients - Rapid voltage peak up to 20,000 volts with a duration of 10mS to 100mS.

Power factor (l) - Ratio between the active power P supplied to a load and the apparent power S supplied to said load by an AC power supply.

Distortion (individual) - Ratio between the rms value of an nth order harmonic and the rms value of the fundamental.

Current Drain - The current withdrawn from a battery during discharge.


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