Replacement battery fits 7 Ohaus compatible models. Specifications: 3000mAh, 7.2V, Nickel. Compatible with: Defender 5000 bench scale, T51P, T51XW, Defender 5000, Defender 7000, T51 and 1 more compatible models. Replaces: Ohaus 80500729, Ohaus GP300SCH6S6Z. Ohaus replacement battery designed for Equipment/Survey/Test devices. Delivers steady power for reliable everyday operation.