Compaq Evo Computer power supplies are specifically designed for each computer brand and model. AtBatt.com offers a complete line of Compaq Evo power supplies and compatible replacements for most computer models. We have developed a Compaq EvoComputer Power Supply Select Technology™ that will guide you in choosing the correct power supply and ac adapter for your computer. Your first step is to choose your Compaq Evo model from the list below.
Upgrade my Compaq Evo Computer Power Supply from NiMH to Li-Ion
NiCad, NiMH and Li-Ion Compaq Evo computer power supplies are all fundamentally different from one another and cannot be substituted unless the computer has been pre-configured from the manufacturer to accept more than one type of power supply chemistry. Please refer to your manual to find out which rechargeable power supply types the computer device supports or use our Compaq Evo Power Supply Finder above to find all the compatible computer power supplies for your device. It will automatically list all of the power supply chemistries supported by your specific device. If your device does allow you to upgrade the power supply from NiMH to Li-Ion, you will typically get longer run times.
For example, if your computer uses a NI-MH power supply that is 9.6 Volts, 4000mAh and the new li-ion computer power supply is 14.4 Volt, 3600mAh, then you will obtain longer run time with the li-ion power supply.
Example.
Li-Ion: 14.4 Volts x 3.6 Amperes = 51.84 Watt Hours Ni-MH: 9.6 Volts x 4 Amperes = 38.4 Watt Hours The Li-Ion is stronger and has longer run time.
How can I maximize the performance of my Compaq Evo computer power supply?
There are several steps you can take to help you get maximum performance from your computer power supply:
Prevent the Memory Effect - Keep the computer power supply healthy by fully charging and then fully discharging it at least once every two to three weeks. Exceptions to the rule are Li-Ion power supplies which do not suffer from the memory effect.
Keep the Compaq Evo computer Power Supplies Clean - It's a good idea to clean dirty power supply contacts with a cotton swab and alcohol. This helps maintain a good connection between the power supply and the portable device.
Exercise the Power Supply - Do not leave the power supply dormant for long periods of time. We recommend using the power supply at least once every two to three weeks. If a computer power supply has not been used for a long period of time, perform the new power supply break in procedure described above.
Power Supply Storage - If you don't plan on using the computer power supply for a month or more, store it in a clean, dry, cool place away from heat and metal objects. NiCad, NiMH and Li-Ion power supplies will self-discharge during storage; remember to recharge the power supplies before use.
What is the run time of AtBatt's computer power supply?
Compaq Evo computer power supplies have two main ratings on them: Volts and Amperes. Because size and weight of computer power supplies is limited when compared to larger power supplies such as car power supplies, most companies show their ratings with Volts and Milliamperes. One thousand Milliamperes equals 1 Ampere. When buying a power supply, select power supplies with the most Milliamperes (or mAh). Power Supplies are also rated by Watt-Hours, perhaps the simplest rating of all. This is found by multiplying the Volts and the Amperes together. For example:
14.4 Volts, 4000mAh (Note: 4000mAh is equal to 4.0 Amperes).
14.4 x 4.0 = 57.60 Watt-Hours
Watt-Hours signifies the energy needed to power one watt for one hour. This Compaq Evo computer power supply can power 57.60 watts for one hour. If your computer runs at 20.50 watts, as an example, this computer power supply could power your computer for 2.8 hours.
Understanding your Compaq Evo Power Supply Needs
We strive to make you computer power supply purchases easy. Since we understand that finding the right power supplies for your needs can be overwhelming and confusing at times we developed a computer power supply finder tool to help find the right size for the make and model of your equipment. We also offer educational articles and tips to help you conserve your power supplies and understand common problems. By us providing education you are able to make the right purchasing decisions as well as provide proper care for all of your electronics.
Are there restrictions when taking lithium-ion batteries on planes? Effective January 1, 2008, the Department of Transportation (DOT) will no longer allow loose lithium batteries in checked baggage. These batteries may continue to be packed in carry-on baggage. To read more: http://www.atbatt.com/blog/31/Traveling-with-Spare-Batteries.asp
