Preparation Preparation Batteries Your hearing System uses a stately al Its power soles. This battery size dar be identified bathetic grange caloric ode on 1 packaging, Te disarm of replace the battery: 1. Thesaurus nail grip on the battery door, 2. Open he bate door gen o rem die the alt bate. 3. Remove theta from the new battens Line ule BEE TY with tHe EY sign far gde of the Battery hearth battery doer. 5.