WATTSTUNDE 20A 90V MPPT WLR-BT Charge Controller

The WATTSTUNDE 20A 90V MPPT WLR-Charge Controller is an efficient charge controller that converts solar energy into a stable charging voltage for batteries. The integrated LCD display provides real-time insight into battery voltage, charging status, and temperature.

The intelligent disconnection function prevents deep discharge by automatically disconnecting connected devices when a critical voltage level is reached.

Advanced MPPT technology continuously optimizes the operating point of the solar panel, converting excess voltage into increased charging current. This shortens charging time and boosts energy yield by up to 30%, especially under variable weather conditions.

The charge controller automatically detects 12V or 24V systems and adjusts the charging voltage dynamically with the external temperature sensor. Built-in protections against overcharging, discharge via the solar panel, reverse polarity, excessive voltage, short circuits, and overload ensure reliable operation.

With the integrated Bluetooth function, charging status and settings can be easily managed remotely via a smartphone or tablet.

The WATTSTUNDE 20A 90V MPPT WLR-Charge Controller is compatible with sealed, gel, and flooded lead-acid batteries as well as lithium batteries (Li-Ion, LiFePO4).