Laptop batteries purchase attention

We often see the 50$ original Dell laptop batteries or Apple battery in Ebay. And there is no real brand new original laptop battery in the market, because battery manufacturers will be asked to produce the detail terms number battery by laptop manufacture, according to the amount of customized. Therefore, we can estimate the original laptop battery Price: 6 cell + battery protection board + enclosure + test fee + R & D costs + packaging + transportation + labor costs + a series of warranty after-sales and other costs, original laptop battery ex-factory price at least 60$, so You should carefully select these 40-50$ "original" Toshiba laptop battery in the market . There are three kinds laptop battery in the market as following: An original laptop batteries, good quality, need not any evaluation. But the other properties of the battery such as the battery charge and discharge times, the battery anti-aging properties simply can not up to standard. Most of the 3-6 warranty months warrany "Original battery" and "OEM Dell XPS M140 Battery " on the market are made of neutral batteries: It achieve the use of nominal time, but it is difficult to achieve the standard charge and discharge times, battery aging fast, average life between 3-6 months.