I was under the impression that in order to install Windows 7, your machine needed to have at least 512MB of RAM.

aspire 5520 batteries tips:

All of us want to prolong our acer laptop battery's life. What should we do to prolong the battery's life? here is some brief guide to extend your li-ion acer aspire 5520 battery battery's life..

* You must initially give the acer aspire 5520 laptop battery a 12-14 hour charge on the proper charger.Try to use the home charger more often than the cigarette lighter charger.
* Not in the high temperature environment for charging acer aspire 5520 laptop battery ,make sure the environment temperature is suitable temperature.
* Lithium-ion Battery prefers a partial rather than a full discharge,frequent full discharges should be avoided when possible.
* Do not use higher than its threshold voltage to charge the acer aspire 5520 battery ,as it would become unsafe.
* purchase spare lithium-ion batteries for later use if your battery series get weak over times.
* Keep the rechareable hp Li-ion battery cool. Avoid a hot situation. For prolonged storage, keep the acer aspire 5520 battery at a 40% charge level.
* Do not short-circuit. A short-circuit may cause severe damage to the battery.
* Through the above Suggestions, you can take better care of your aspire 5520 battery. You need them for your daily life.
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I've also installed 7 on 4-5 machines and the install time has been about 25 minutes or less.