Kiss wasteful disposable batteries goodbye by building this $6 ni-cad battery charger battery charger, including proper care a feeding, the design, circuit board diagram, cost and materials list.
When contributor James E. Bialy sent us a slick design for a AA ni-cad battery charger that works off an automobile's electrical system, we were impressed . . . but we just weren't able to leave well enough alone.
PHOTO: MOTHER EARTH NEWS STAFF
Chart: Bill of materials for Ni-Cad battery charger.
MOTHER EARTH NEWS STAFF
Diagram: Circuit board for Ni-Cad battery charger.