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I need to generate 4.4W at 12V to operate a pump for about a minute or two at a time. What's the lightest I can go with this?
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So I need to operate a micro solenoid pump for a fully automated apparatus, and the pump operates at 12V and draws 4.4W. I did the math, and I know I need to get 366 mA, but I have 12V batteries (A23) that I tried to do this with that didn't seem to turn on the pump. Probably didn't generate enough current. How can I get the current I need? And how light can I get it? Cost isn't really an issue. Also, it needs to be self-contained (powerbank) Am I on a hopeless search?
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