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Using Powertool Battery to power project

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pdbeyer

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Using Powertool Battery to power project
« on: March 05, 2013, 10:29:40 PM »
I building an automation project using an Arduino Uno board, and I am having a power problem. I want to power the project with an 18V Dewalt DC9096 battery. I need +12V and +9. When I try to use LM 7812 / 7809, I burn the voltage regulators out with no load on them. I really am at a loss as to why they are burning out, unless it is something to do with the DC9096 battery pack.
Battery Specs...

Chemistry    NiMH
Voltage    18
Capacity    3000 mAh / 3.00 Ah
Rating    54 Whr
Cell    15 cells

Is there something I'm missing? I am wiring the 7812 according to the basic schematic on the spec sheet

remonx6

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Re: Using Powertool Battery to power project
« Reply #1 on: August 01, 2013, 06:58:23 AM »
U can Used uNIverSal AC aDapter Thanks Author helpful topics