Item specifics|Condition|Open box: An item in excellent, new condition with no wear. The item may be missing the original ... | |Read more|about the condition|Open box: An item in excellent, new condition with no wear. The item may be missing the original packaging or protective wrapping, or may be in the original packaging but not sealed. The item includes original accessories. The item may be a factory second. See the seller's listing for full details and description. |See all condition definitions|opens in a new window or tab| |Battery Type|Li-Ion|Battery Capacity|44Wh/3900mAh|Compatible Brand|For Lenovo|Compatible Product Line|ThinkPad|Type|AC & DC|Color|Black|Brand|Lenovo|Voltage|11.1 V|MPN|0A36287 42T4844 42T4845 42T4846 42T4847, 45N1036 45N1037 45N1038 45N1039, 45N1064 45N1065 45N1143|Compatible Model|Lenove ThinkPad T420s T420si T430s T430si|Number of Battery Cells|6|UPC|Does not apply|