... 4. accept OEM Replacement laptop battery for ACER 5500/5600/3600/BATEFL50L6C40/BATEFL50L6C48(replacement laptop battery) 1.Cell type:Li- ... , 555x, 557x,558x, 5570, 5570z, 5573AWXCi, 5580, 5585WXMi,5600, 5670, 5672Acer TravelMate 2400 SeriesTravelMate 2400, 24xx, 2403, 2404, ... -qualitymulti-functional protection and 100% compatible.And every battery can be charged and discharged reach 1000 times again ...