50A DSP MPPT Power Controller

AP-50C MPPT Solar Charge Controller
Manufactured by Foshan Top One Power Technology Co., Ltd.

The AP-50C is a 50A maximum power point tracking (MPPT) solar charge controller manufactured by Foshan Top One Power Technology Co., Ltd., a power conversion equipment company based in Foshan, Guangdong. It has been operating since 2003. The AP-50C is part of the company's AP Series of MPPT controllers and is designed to maximise the output of solar panels in off-grid systems for use in homes, cabins, RVs, and remote monitoring stations.

What sets the AP-50C apart is its tracking efficiency. At over 99%, it is extremely efficient at extracting usable power from solar panels. The controller operates at up to 98.6% charging conversion efficiency, meaning almost all the harvested energy makes it into the batteries. Unlike basic pulse width modulation (PWM) controllers, which simply switch the panels on and off, the maximum power point tracking (MPPT) algorithm in the AP-50C constantly adjusts the voltage and current to keep the panels operating at their peak power point, regardless of changing sunlight conditions.

The AP-50C supports system voltages from 12 V to 96 V, and can handle sealed lead-acid, gel, AGM, and lithium (LiFePO₄) batteries. It uses a three-stage charging profile - constant current (MPPT), equalising charge, and float charge - to extend battery life and ensure smooth operation. There is also an RS485 communication port so that you can connect the controller to a monitoring system or phone app to keep tabs on performance remotely.

The built-in LCD display provides real-time readouts of input voltage, output current, battery status and load information, eliminating the need for guesswork. Installation is straightforward, and the device can handle a DC input of up to 150 V, providing flexibility in arranging your solar panels. Backed by the expertise and quality control of Foshan Top One Power Technology Co., Ltd., the AP-50C provides reliable performance for those who demand the best.

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