FIELD: chemical power supplies. SUBSTANCE: battery operating time can be increased by means of regulator, for instance by changing cell voltage into output voltage which is higher than opening voltage of electronic device, by changing cell voltage into output voltage which is lower than rated voltage of battery galvanic cell, or by protecting galvanic cell against current peaks. Regulator may also incorporate grounding bias circuit that provides for virtual ground to allow for voltage changer operation at lower voltages across cell. Battery can designed as single-cell battery, universal single-cell battery, multiple-cell battery, or hybrid multiple-cell battery. EFFECT: enhanced operating time of battery. 10 cl, 21 dwg, 2 tbl
