MORE BATTERY-TESTING CIRCUITS.

Here we are again, ready to continue our battery-testing adventure. Last visit we covered a few voltage-monitoring circuits along with loading methods. We're going to start this session off with a simple pulsed on/off battery-life testing circuit, followed by a slightly more complex pulsed system with many additional timing features. Then, we'll move on to constant-current discharge circuits, which just may be the very best method for meaningful life testing comparisons.

Our first on/off load-testing circuit is shown in Fig. 1. A 555 IC timer is connected in a simple ...

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