/diy/ - Do It Yourself

Anonymous Wed Mar 27 19:30:58 2019 No.1581787 [View]
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>>1581784
I was still thinkin about trying to build a jumper pack for the car. There was 3rd battery pack too, I shoulda grabbed it but I only took 2.

They have this second contact part. I stuck the DMM probes in the regular slots and got 7.8V, thought I just wasted $6. Then I hit the little charge level button and got 19.8V. The two on top were 0.0V, then I hit that battery indicator button and got 5.0V. I could charge a cell phone off that bitch.

Now I need to figure out what makes it go from 7.8V to 18.9V and 0V to 5V. The little cell phone power banks were like that too and BigClive has a video where he shows you just short the + and - data leads for a second to get full power.

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/diy/ - Do It Yourself

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