The backstory on [Tim O’Brien]’s DIY off-grid PV system starts with his desire to charge ... MPPT data without shipping it off to parts unknown. While we appreciate a DIY MPPT controller ...
A few years ago, [Lukas Fässler] needed a solar charge controller and made his own, which he has been improving ever since. The design is now mature, and the High Efficiency MPPT Solar Charger ...
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