I'm making a parallel/series switcher for two lithium ion cells because I can only charge them in parallel, but my project requires 7.5v. I'm using NPN transistors as switches, controlled by Arduino to switch between charging and discharging. The analog pins are used because all of the other pins on…

Does this look okay?

system March 1, 2013, 8:14am 5

Hows this?

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