you’ll be able to charge your device faster while it is running and it’s much more efficient, which will give your 9 volt a longer battery life. the best part is that it’s easier and ...

It’s a project called snapVCC, and it turns a 9 volt battery into a regulated 3.3 or 5 volt supply. The idea behind snapVCC is simple enough; just add a circuit board to the top of a nine volt ...

Leaving these on could drain the battery faster than you’re charging it. Optionally, you could use a handheld volt meter to ...