A battery replacement cost would be somewhere around $20 to $50. A lithium rechargeable battery bought from the manufacturer of the original device can be more expensive. A 6-cell to 9-cell laptop batteries costs around the US $120.

 

HP Laptop Battery CQ42 and Toshiba PA3817U are some of the best options to consider as both these batteries have a capacity of 4400mAh, they have a great battery life as they can handle up to 500 recharge cycles over a life, they have a built-in safety feature which enables PTC (Pressure, Temperature, Current) protection that provides High current protection, Low voltage protection, and over temperature protection, also, they are made of environment-friendly materials which are harmless to the environment.