Replacement battery fits 22 Telstra compatible models. Specifications: 650mAh, 3.7V, Li-ion. Compatible with: Mitel 5614, Mitel 5613, Mitel 5603, Mitel 5602, Swyx D210, Swyx D215 and 16 more compatible models. Replaces: Ascom BKB201010/1, Ascom FA01302005, Ascom FA83601195, Aastra BKB 201 010/1, Aastra FA01302005, Aastra FA83601195 and 9 more. Telstra replacement battery designed for Cordless P…