This circuit runs a fast battery test without the need of power supply or expensive moving-coil voltmeters. It features two ranges: when SW1 is set as shown in the circuit diagram, the device can test ...
Here is the circuit diagram of a low cost universal charger for NiCD – NiMH batteries. This circuit is Ideal for car use. It has ability to transform a mains adapter in to a charger . Here is the ...
A blast from the Elektor archives: this 1998 battery tester uses a simple LED display to reveal a battery’s true condition under load — even below 1 V.
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