Replacement battery for Power Tool. Specifications: 2700mAh, 14.4V, Nickel Metal Hydride (NIMH). Compatible with: Power Tool. Replaces: 1051D, 1051DWA, 1051DWAE, 1420, 1422, 1433 and 53 more. Burndy replacement battery designed for Power Tool devices. A precise, secure fit you can rely on.