| With this instrument, you can check the condition of your car battery by measuring its internal resistance without discharging it. Not only...
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| Mole hills can ruin your carefully manicured lawn in no time at all. If you guard your precious garden with an electronic mole repeller, thi...
| When a battery-operated device can also recharge its batteries, it can be useful to measure its instant and average current in both directio...
| Check the condition of your car battery by measuring its internal resistance, without discharging it. Also track shorts and measure with h...
| Do you use battery-powered equipment? By replacing the cells in your product's battery pack, you can save money and reduce waste. Check out...
| When you need to choose a suitable battery for your next battery-powered IoT design, you could sit down with a DVM and measure the active an...
| Five LEDs are connected to a 9V battery by means of two series resistors are all you need to build this nice-looking Christmas star. The cir...
| Need a charger for your new and used Li-ion batteries? Build your own without a microcontroller. No software required!
| Want to design a battery level indicator? Would you like to construct a magnetic levitation device? Curious about what Elektor was predictin...
| Want to monitor a battery? This circuit gives a signal using an LED when the voltage of a monitored battery drops below an adjustable minimu...