battery meter - indicates the approximate capacity of a dry cell

battery meter elektor october 1984 The advances in electronics and, in particular, the push towards ever greater miniaturisation means that our lives are becoming more and more filled with battery-powered radios, clocks, cassette recorders, calculators and so on. It is very often a matter of guesswork to know how long the batteries will last as it is not possible to estimate a dry cell"s capacity simply by looking at it. This battery meter simplifies matters considerably and, as it has been kept as uncomplicated as possible, the price is low enough to make this circuit a very attractive proposition. battery meter indicates the approximate capacity of a dry cell The more battery-powered equipment we use the more difficult it becomes to remember how old all the various bat- teries are. All the various aspects of Murphy"s Law come into the equation and just in the middle of an important recor- ding the batteries in your cassette recorder give up the ghost. (The law of conservation of...