Seems Better than original,
Verified Purchase(What is this?)
This review is from: Anker New Laptop Battery for Dell Vostro 1520 1320 1510 1310 PP36L PP36S 2510 fits T116C T114C T112C 0K738H - 18 Months Warranty [Li-ion 6-cell 4400mAh/48WH]
I am always reluctant to buy products which are recommended by company itself but in this case I went to purchase this battery as original Dell was too expensive. But I am glad I bought it. It seems better than original one which came with my Vostro 1520 in Dec 2009 and was not giving any backup after one year.
I am not giving 5 star as I have not used this product for a year so far.