How to pick up high quality Dell laptop batttery?

Recently, I received a lot of e-mail or phones from frends, complaining that the Dell laptop battery they bought 3 months ago is now fully charged but can only use for an hour or even half an hour. someone said that their Dell laptop battery that just bought for half a year, can't be charged any more. It is clear that the Dell laptop battery they bought is low quality Dell laptop battery. And I asked them why they did not buy my high-quality Dell laptop battery, some one asked me how can I trust you?

First of all, we are high quality Dell laptop battery manufacturers.
so that, compared with other suppliers, we can use high quality Dell laptop battery cells on the same price or lower than any other supplier .

Second, if you have doubts, our site is written clearly, we provide one year warranty and if you are not satisfied with our products or service, we can give your money back in 30 days.

Third, in order to increase our sales, we have decided recently to 2 months, the product is free of all taxes and fees, that is, you only need to pay the price of the product itself, and just $ 7.99 shipping fee, we will be able to put your products to your hands in just a few working days, If you have doubts, please contact us