Product Code: LB55
Nickel Metal Hydride (Ni-MH) Voltage 10.8V Nominal Capacity 4000mAh Diameter/Width 214.6mm Height 21.4mm Length/Breadth/Depth 57.6mm ACER : Extensa 390HITACHI : Vision plus 5000HITACHI : BTP-031 ACER : BTP-031This battery is a fully compatible alternatve to the original branded product