Second Chance - WATTSTUNDE 40A 90V MPPT Controller WLR-BT 40.90

Generate your own energy with the modern WATTSTUNDE 40A 90V MPPT Controller WLR-BT 40.90. The LCD display provides clear information such as battery charge status and load current. You always have control and can adjust settings. With the built-in Bluetooth module, the yield of your solar panels is easy to read via the app, suitable for both Apple and Android devices.

The current is displayed in real time and a statistical function lets you view the total yield. The innovative MPPT (Maximum Power Point Tracking) technology ensures that the varying voltage of the solar panels is converted into a constant voltage to charge the battery.

This charge controller charges all common battery types (lead-acid, AGM, gel, lithium). The low-voltage protection protects the battery from dangerous deep discharge. The intelligent automatic load decoupling switches off connected loads when the battery reaches a critical state of charge.

WATTSTUNDE's new WLR MPPT series works according to the principle of Maximum Power Point Tracking. The controller determines the optimum operating point of the solar panels several times a second. This allows the charge controller to convert the excess voltage of the solar panels into an increased charge current for the battery. This increase in charge current ensures shorter charging time and the best possible power output for the system.

The system voltage (12 or 24 V) is automatically detected. Thanks to the external temperature sensor, the charging voltage can be automatically adjusted to the ambient temperature. An overload and overcharging protection as well as a solar panel countercurrent protection offers your entire system the necessary safety.