About ACER Extensa 390 battery
- ACER Extensa 390 laptop battery, the best replacement for the OEM Extensa 390 batteries !
- This Extensa 390 ACER laptop battery has achieved international standards such as CE, UL, CULListed, ISO9001 /9002 and other certification.
- High quality and lower price with ACER Extensa 390 replacement laptop battery.
- Fast delivery on order of acer Extensa 390 lapotop battery.
- Extensa 390 ACER laptop battery comes with full 1 year warranty and 30 days monday back!
ACER extensa 390 series Battery Disclaimer:
The ACER extensa 390 series batteries offered by us are sold for use with certain products of computer manufacturers, and any reference to products or trademarks of such companies is purely for the purpose of identifying the computers with which our products [are replacement for] may be used. Our company and this website neither related in any way with these manufacturers nor are the products listed in our website manufactured by those batteries manufacturers.
Top Tips To Extend Your ACER extensa 390 series Battery's Life
- Defragmet your hard drive regularly - The less your hard drive spins - less demand you are going to put on the hard drive and your battery. Make your hard drive as efficient as possible by defragging it regularly.
- Dim your screen - Most laptops come with the ability to dim your laptop screen. Some even come with ways to modify CPU and cooling performance. Cut them down to the lowest level you can tolerate to squeeze out some extra acer extensa 390 series battery juice.
- Cut down on programs running in the background - Itunes, Desktop Search, etc. All these add to the CPU load and cut down acer extensa 390 series battery life. Shut down everything that isn't crucial when you're on battery.
- Cut down external devices - USB devices (including your mouse) & WiFi drain down your acer extensa 390 series battery. Remove or shut them down when not in use. It goes without saying that charging other devices with your laptop when on battery is a surefire way of quickly wiping out the charge on your laptop battery.
- Add more RAM - This will allow you to process more with the memory your acer laptop has, rather than relying on virtual memory. Virtual memory results in hard drive use, and is much less power efficient. Note that adding more RAM will consume more energy, so this is most applicable if you do need to run memory intensive programs which actually require heavy usage of virtual memory.
- Run off a hard drive rather than CD/DVD - As power consuming as hard drives are, CD and DVD drives are worse. Even having one in the drive can be power consuming.
- Keep the battery contacts clean - Clean your extensa 390 series battery' s metal contacts every couple of months with a cloth moistened with rubbing alcohol. This keeps the transfer of power from your acer battery more efficient.
- Take care of your battery - Exercise the Battery. Do not leave a charged extensa 390 series battery dormant for long periods of time. Once charged, you should at least use the battery at least once every two to three weeks. Also, do not let a acer li-ion battery completely discharge. (Discharing is only for older batteries with memory effects)
- Hibernate not standby - Although placing a laptop in standby mode saves some power and you can instantly resume where you left off, it doesn't save anywhere as much power as the hibernate function does. Hibernating a PC will actually save your PC's state as it is, and completely shut itself down.
- Keep operating temperature down - Your acer laptop operates more efficiently when it's cooler. Clean out your air vents with a cloth or keyboard cleaner.
- Set up and optimize your power options - Go to 'Power Options' in your windows control panel and set it up so that power usage is optimized (Select the 'max battery' for maximum effect).
- Donât multitask - Do one thing at a time when you're on battery. Rather than working on a spreadsheet, letting your email client run in the background and listening to your latest set of MP3's, set your mind to one thing only. If you don't you'll only drain out your acer laptop battery before anything gets completed!
- Go easy on the PC demands - The more you demand from your acer notebook computer, passive activities like email and word processing consume much less power than gaming or playing a DVD. If you're got a single battery charge - pick your priorities wisely.
- Get yourself a more efficient laptop - Laptops are getting more and more efficient in nature to the point where some manufacturers are talking about all day long batteries. Picking up a newer more efficient laptop to replace an aging one is usually a quick fix.
- Turn off the autosave function - MS-Word or Excel's autosave functions are great but because they keep saving regular intervals, they work your hard driver harder than it may have to. If you plan to do this, you may want to turn it back on as the battery runs low. While it saves battery life in the beginning, you will want to make sure your work is saved when your acer extensa 390 series battery dies.
Do You Know?
- It's a common phenomenon that a charged battery will eventually lose its charge if unused. Therefore,it may be necessary to recharge your Acer Extensa 390 battery after a storage period.
- Li-ion batteries produce the same energy as NiMH batteries but weigh approximately 35% less. Today,a rechargeable Extensa 390 Li-ion laptop battery should be more popular than a NiMh one for its lower weight.
- Actual Extensa 390 battery run-time depends upon the power demands made by the your notebook computer.The use of the monitor, the hard drive and other peripherals results in an additional drain upon the battery, effectively reducing the Extensa 390 battery's run-time.The total run-time of your replacement Acer Extensa 390 battery is also heavily dependent upon the design of the laptop. To ensure maximum performance of the battery, optimize your computer's power management features. Refer to your laptop manual for further instructions.
Help Center
We might be able to help! If you can't find a Acer Extensa 390 laptop battery here or have questions about Extensa 390 Acer laptop battery,please feel to contact us.You can reach us in two easy ways:
- Option #1. Call us at
One of our laptop battery specialists will speak with you and give some suggests for your requirement.
- Option #2. Fill in the form of Contact us and send your questions to us.One of our supporters will contact you with the answer later.
Laptop Batteries 
