TY - GEN AU - Berndt, D. TI - Maintenance free batteries based on aqueous electrolyte lead acid, nickel/ cadmium, Nickel/metal hydride: a handbook of battery technology T2 - Power Sources Technology Series edited by N. E. Bagshaw, M. A. CEng and Fim Fbim SN - 818868953 X U1 - 621.312424 PY - 2006/// CY - New Delhi PB - Overseas Press India N1 - includes index ER -