On Order Cytron Notebook, Laptop Battery Li-ion Battery fits Cytron, md40400, lenovo, e120 11.1V, 4400mAh CS-MT8381NB $69.99 The batteries we supply almost always will match the existing batteries capacity. Sometimes there may be a difference due to the availability of components. We want you to get the right battery first time. We will select the appropriate battery for you and guarantee that fitment. Email or live chat and you can save yourself a lot of time and money. Add to cart