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Lithium Li-ion 18650 Multimeter
Converting a digital foot scale to rechargeable battery.
Finding a use for weak AAA batteries.
Big phone battery
MY DC POWER SUPPLY
DC Multi-voltage Regulator
UberCool MiNi RECHARGEABLE POWER SUPPLY
Wet Cell Battery out of Food
Change 9 volts to 5 volts
Volthaus Electronics Laboratory
Convert a Genius speaker to run on 9 volt baterys.
Posted:Jan 28, 2013
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