Compaq Presario R3000 Series Laptop Battery, 4500Mah (replacement) Shopforbattery 100% OEM compatible laptop battery for PRESARIO R3000 SERIES Volts: 14.8 - Cells: 8 - Color: Black - Chemistry: LiIon - mAh: 4500 1 year manufacturer warranty. 100% OEM compatible and made with high quality battery cell. Made with high quality battery cells and components with all safety feature. Ship direct from manufacturer