More about battery (486)

1-07-1995 | A small quartz clock that is powered by a 1.5 V battery provides a simple means of determining the capacity of a NiCd battery. The circui...

1-07-1995 | A microprocessor-controlled charger is described that surely meets the requirements of most users of NiCd batteries. It is fast, suitable...

1-07-1995 | Systems with RAM must always be connected to a power supply otherwise the data in the memory get lost. Any break in the supply can, ther...

1-07-1995 | 9 V BATTERY LlFE EXTENDER rten an equipment is supplied by O a battery whose nominal voltage 01 1N4002. L1 is only slightly high er than the...

1-07-1995 | The charger is designed to charge NiCd batteries with capacities of 150-4000 mAh. A potential 5 V higher than the nominal voltage of the...

1-07-1995 | Batteries often go flat at the most inopportune moments. What's more, frequently, this is not detected until it is too Iate, but this ca...

1-06-1995 | There are often occasions when a higher direct voltage is required than an available battery can provide. In many such cases, the circuit...

1-05-1995 | The capacity of a fully charged NiCd (nickel-cadmium) battery can be measured fairly accurately by draining the battery with a fixed curre...

1-05-1995 | The alkaline-mangane se battery is an example of the type of battery that until so me years ago was available only in non-rechargeable (p...

1-03-1995 | The power that can be obtained from a standard car radio amplifier operating from a 12 V car battery is 5-6 W, which (for many listeners)...