Well....Have a client with 1 year and 2 months old Lenovo N100 Laptop. His battery won't charge, Guessed It's a dead battery, And went to online search for a replacement. Found that there are 2 types of batt. for this computer - 6 Cell like the original and 9 cell which is a bit fatter.I called a battery restoration company, And been said that N100 Battery cannot be refurbished.I saw that some online shops sells compatible batteries. When I called IBM, I told the price of battery is 1/2 the price of the online shops !!! I wasn't sure about it, And drove there to buy the battery, And it was true. Like they sold me the battery for 80$ while the cheapest original on the shops was 170$ !!! The only thing that was strange, Is that they give only 3 months warranty on the battery, While they insist it's new. I will give my client 6 months of warranty to keep his piece of mind after this incident after using the computer for just a bit more than 1 year, But don't you find it strange ?