Replacement battery fits 68 Telstra compatible models. Specifications: 600mAh, 2.4V, Ni-MH. Compatible with: DeTeWe Style 250, 8400A, 8450, CLS-8450, Slim 8450, Doro TH50 and 62 more compatible models. Replaces: DeTeWe 5M702BMX, DeTeWe GP0827, DeTeWe GP0845, DeTeWe GP0735, DeTeWe GP0747, DeTeWe GP0748 and 60 more. Telstra replacement battery designed for Cordless Phone devices.