I ordered 2 HP batteries directly online as the ones I used to buy from Ikeja normally get bad after 1 charge. unfortunately I received the wrong HP battery and it wouldn't fit into my laptop (HP envy but for a different model), so now I am hoping I can find the casing for my battery so I can swap the Li-ion cells into that casing. I would like to know if it is possible to find used laptop battery casing? another option for me would be to sell the battery but I want to see if it is possible to do this first, if I cannot find laptop battery casing then I would have no other choice but to sell the batteries. I have attached pics of the battery that my laptop uses and the battery that was sent to me. You can see the difference.