The Battery Saver kit
December 31, 2025 DISCONTINUED
got a project that eats 9V batteries ?
(or any other battery from 3 to 14 volts)
simple hardware timer, pushbutton activated
shuts off the power after a 17 or 37 minute delay
(approximate - selectable with resistor change)
good intro to surface mount with two easy to solder
surface mount parts and four through hole parts
low standby power (less than 1 ua at 9 V)
small size ( .9 by .6 inches)
new silk screened, solder masked board
Printed manuals available for an additional charge or save money by downloading
(Right click/save target as)
and printing the
manual ,
schematic and
hookup diagram
.
Please email:

with any questions/comments.
Downloadable files for the Battery Saver
The Acrobat files of complex diagrams (like the Battery Saver schematic) may not
view well on your computer screen - suggestion: use the magnifier to zoom in
for better detail or print out the file.
batsavtb.jpg - Battery Saver top picture
battsavs.pdf - Battery Saver schematic
battsavm.pdf - Battery Saver manual
battsahu.pdf - Battery Saver Hookup diagram
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