If I took 2 9v batteries in series to create 18V, plus a resistor in series to lower the voltage, could I plug that in to run my Evo? I am thinking the load of the Evolver is 15V / 0.5 A = 30 ohms? So a 10 ohm resistor in series with the evolver would take 1/4 of the 18V, ie 4.5 V, leaving 13.5V for the Evo. Anybody know if I'm thinking about it the right way?
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making a simple battery pack?
2005-10-25 by rgmccaig