Laptop battery replacement for ACER TravelMate C100 Series BTP42C1 1800mAh/27Wh 4 cells+Free Thumb Brand Bracelet Gift +Free Thumb Brand Bracelet Gift Replacement Brand:ACER Cells QTY:4,N.W.:208g Voltage(V):14.8V Capacity:1800mAh/27Wh Dimension:142.42*70.82*20.10mm,Color:Dark blue