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After the batteries went dead in the middle of a shot using my new camera with double the number of megapixels and features, I discovered there was no...
Combine or Not?In many devices, such as a flashlight, the batteries are wired in series. In these devices you may be able to combine the voltages with...
If the adapter has long leads then they may be all that is needed when the plug is removed.Otherwise a 22 AWG or lower AWG set of leads should be acqu...
To make the "contacks" simply strip the end of the lead, wind it around the tack and solder. You'll need at least two "contacks," one for the negativ...
If you have a device where there may not be a series connection between the batteries then you'll need to cut each piece of dowel to the length of an ...
Shown is just one AA battery but if you cut the piece of inner tube wider you can parallel several batteries for more amperage and amp-hours. (Hint:...
Test the contacts with a voltmeter to be sure the polarity and voltage are correct and then test the fit of the connectors and the external power supp...
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