Rechargeable batteries MSI

9-cell, 2600mAh, black The batteries used for MSI notebooks are Lithium/Ion type batteries which do not suffer from the so called 'memory effect', like some other types of batteries do. This also means that you aren't required to fully discharge the battery before recharging it in order to keep the battery charging properly to its maximum capacity. However, the actual battery capacity decreases due to electrochemical inefficiencies within and therefore must be considered as a consumable item, which needs to be replaced at the end of its useful life.