The LTO-26 Lithium Ion Laptop Battery by Amstron for the Toshiba Tecra 8000 notebook is compatible to Toshiba laptop battery P/N PA2451URN, PA2510UR, PA3010U-1BAR. The LTO-26 is rated at an industry high of 4500 mAh, providing almost 20% more power than the original battery. • Specs: 10.8 volts 4500mAh • Dimensions: 6.25'' x 4.00'' x 0.75'' • 1 year warranty