... .Voltage:11.1V,Current:7200mAh . 2.Replacment battery for acer Extensa 3100. 3.Warranty:1year. 4.Certificate:CE,ROHS,FCC SpecificationsMOQ ... .BTP01.101.MS2180. Fits Laptop Model:For acer travelmate 4320,extensa 3100,aspire 3600,3620,5540,5550,5560,5590 series.travelmate ... or hairpins.acer travelmate series Replacement laptop battery for Acer Extensa 3100