How to choose a laptop battery
1. To use software tools to detect
Generally speaking, international brands of notebook battery products will be provided a battery-management tool in the CD-ROM, such as the ThinkPad’s Thinkpad Configuration, SONY’s PowerPanel. This is a tool we can use this software to read the intelligent control chip of battery,then,we can learn about the design capacity of the battery, the actual capacity, and the other information
However, these tools only used to the original battery, I recommend using this software – BatteryMon, the parameters of the battery can be visualized to them. BatteryMon can read the information of the PCM board of battery, and due to the core for batteries, keeping the original circuit, it is still an original batteries BatteryMon “eyes”. In this regard, we can choose a battery from the capacity information, in general, the capacity of core for the actual battery is often not consistent with the design capacity.
2.Look at the appearance
When We buy notebook battery (such as purchase a dell inspiron 1420 battery from a online store)should to check carefully whether the battery’s shell is a good process, the edge of the battery is fine, the print is clearly or not. There was a clear distinction between genuine and the fake in details. If convenient, use BatteryMon to detect the battery manufacturer and part number. Here we proposed to bring your original battery when buy the replacement battery, and compare with the original carefully.
3.selected a battery through the smell
If you are sensitive to odor, you can try to smell. There are kind of factory-specific flavor in the new original batteries and the compatible batteries (similar to sandalwood, I believe more accurate that this is a plastic smell), and the specific odor is not a common perfume scent that can be replicated. But if the battery is renovated, because used many times, the counterfeit batteries have no smell, used the adhesive to agglutinate the battery cells together, there will be irritating odor
4.selection from weight
The weight of notebook batteries is directly proportional to the quality , you can compare the weight to the original battery. It is necessary to pay your attention if it’s lighter than the original battery. Of course, sometimes this approach is not very accurate, for example: the old battery of nickel-metal hydride battery cells.
5.According to the warranty period to authentication
If the warranty period is not more than six months,we should be careful, because of consumables belonging to the battery, recharging is a constant, with many times, general speaking, the counterfeit batteries will drop the endurance performance after a month or two, will can not be recharged. It can be said that according to the warranty period to judge whether the battery is a new or not, at least to judge whether the battery cells is new or not.

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yes i will
Hi,
well written article, I think our views on batteries comment » How to choose a laptop battery differ a little however you put foward some good points
Thanks
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Nice site!
DAY TWO with the Acer AS 1410:
Originally purchased DELL Mini-10 but returned it after a week with it. There is a design flaw in the DELL Mini-10 that caused the extra capacity 6-cell battery I bought with it to continually fall out of the unit.
The Acer AS 1410 has been a true joy to play with thus far. I bought the Sapphire Blue color one and have only two complaints thus far on Day Two with it:
CONS
1. Speaker is located under the front of the unit and is not very loud. Plan on using headphones or purchasing powered external speakers if you wish to use this unit to watch movies on.
2. The glossy blue top, while absolutely gorgeous, is a magnet to fingerprints and smudges and is hard to keep clean.
PROS
1. Large, comfortable to use keyboard – full size or very near full size.
2. Battery Life – I looked at the Acer Timeline 3810 and 5810 due to the battery time claims, but opted NOT to buy those models because I was looking for a smaller unit that was ultra portable and light. This unit comes standard with a 6-cell battery so no need to upgrade or worry about something sticking out the back of the unit. The interesting thing is, they claim 5-6 hours battery life on this unit but using the Power Saver setting on day 2 I am getting 8 hours of battery life easily – a VERY pleasant surprise! I LOVE having that amount of time to work untethered in such a light, small unit.
3. Screen size – 11 inches is perfect for what I was looking for. 15 inches on the Timeline series would have been too large for me. I was looking for a netbook, but this is much more than the other models from DELL or the other netbook lines.
4. Trackpad/Mouse – Originally I purchased the DELL Mini-10 from Best Buy. I quickly learned that the only units Best Buy carries are the lower-end vanilla ones. I like fast computers and I wanted one with bluetooth standard. The trackpad on the DELL Mini-10 drove me NUTS. It is very poorly designed and awkward to use. The Acer AS 1410 trackpad on the other hand, is easy to use with recessed buttons and a sensitive trackpad. For those who want to use an external mouse with this unit, bluetooth comes standard, which is really nice not to have to pay extra as an add-on as you do with the DELL Mini-10.
5. Solidity – I like my laptops to have a solid feel to them. This unit is a really nice blend of low price without sacrificing quality. I am actually a Mac user – have been using MacBook Pros for years, but wanted to buy this as a second machine to have for light use and better mobility.
6. Functional use – I purchased this unit for email, browsing, Word, Excel, Powerpoint, light coding of XHTML and CSS. Thus far on Day Two it is a joy to use.
7. Speed – This unit comes standard with 2GB of RAM. It was a no-brainer to add an extra 2GB RAM chip for $20 when I bought this. I strongly recommend bumping the RAM when you buy this to the max of 4GB. For an extra 20 bucks you will not be disappointed with the speed increase.
8. Backup – I use and recommend BackBlaze , an online backup service that runs in the background while you work. If you buy the annual plan for $50/year that puts your backup costs at less than five bucks a month – well worthwhile.
I will try to update this review in a couple weeks or should I have any problems with this unit, but in general am extremely happy with the purchase of the Blue Sapphire Acer AS 1410. It’s fast, ultra-portable, sexy and sleek. A joy to use.
UPDATE: 19-OCT-2009: Two weeks with this product and I still love it. Only thing I can say differently than my original review is that I had thought when buying this that it came with Bluetooth. It DOES NOT COME WITH BLUETOOTH. That’s really the only drawback I can see. Other than that, this was my first ACER product purchase and it feels really solid. So much so that if I needed a larger PC I’d buy the ACER 15″ Timeline. But I specifically bought the AS1410 because I wanted the small portable screen size and weight. If you buy this you will not be disappointed.
As I mentioned in my review title, I had originally purchased a DELL Mini-10 and returned that to the store. I went through so many problems trying to return the 6-cell batteries that I had purchased directly from DELL that I will never buy another DELL product again. Ever. I’m into the ACER line. They are slim, sexy and work right out of the box.
I should also mention that I am NOT normally a PC person. My primary machine is a MacBook Pro. I bought this 1410 as a second machine for light use. Love it.
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