Recent Posts

18v-to-12v-battery-charger
08
Jan
2021
Posted in Charging batteries

Re-using an old 18v printer power supply to charge a 12v battery

I recently recycled my first printer, an HP DeskJet 710c, but just before leaving it in the…

06
Jan
2021
Posted in How to guides

Using a 12v battery to run 5v microcontrollers

Having to use a voltage of 5 volts is something very common today. The first thing that…