Maker Pro
Maker Pro

12v battery in a solder tube

quantumtangles

Dec 19, 2012
153
Joined
Dec 19, 2012
Messages
153
Drill a small hole in the base of an empty solder tube.

Push tabbing wire through the base of the tube to make a sort of spring (inside the base of the solder tube).

Use any type of sticky tape on the other end of the wire (the end outside the solder tube) to form a terminal.

Fill the tube with 12 silver oxide batteries in series.

The photos show 12 x 1.5v silver oxide batteries inside an old solder tube outputting 17.68v.

Under a small load (for example the LEDs in a solar charge regulator), expect 15.5v @ 0.43 amps = 6.665 Watts for a short time.

As the tube warms up, power diminishes due to equivalent series resistance (churning out more power than they were designed to provide).
 

Attachments

  • Drill hole in base for wire connection.jpg
    Drill hole in base for wire connection.jpg
    150.1 KB · Views: 144
  • Top view.jpg
    Top view.jpg
    151.6 KB · Views: 110
  • Fill solder container with silver oxide watch batteries.jpg
    Fill solder container with silver oxide watch batteries.jpg
    139.3 KB · Views: 196
  • 17.68 volts when not under load.jpg
    17.68 volts when not under load.jpg
    145.6 KB · Views: 118
Last edited:
Top