Review: MPPT-M20 Solar Charge Controller #2 - A Devious Fraud

It's worse than I thought! Not only is this not MPPT, it's not proper PWM either and the temperature probe does nothing. But far worse than that, there appears to be an attempt to fool buyers of this controller into thinking that maximum power point tracking is actually taking place. It's not (and this can be proved by checking if there's any current gain - there isn't). And all this trickery actually reduces the battery charging effectiveness. It's a rip-off, don't buy it.

Видео Review: MPPT-M20 Solar Charge Controller #2 - A Devious Fraud канала Julian Ilett