Solar MPPT + PWM Controller Details Note on Compatibility: High-quality compatible, not a 100% true MPPT controller. Voltage Specifications: Controller voltage: 12/24/36/48V auto Photovoltaic panel voltage recommendations: 12V battery: ~18V panels 24V battery: ~30-37V panels 48V battery: ~60V panels For panels around -72V, connect controller to battery first, then to the panel. Charging Protection: To prevent damage, ensure correct wiring order. Boost and Float Charging Voltages: 12V Battery: Boost >14.8V to Float 13.8V 24V Battery: Boost >29.6V to Float 27.6V 36V Battery: Boost >44.4V to Float 41.4V 48V Battery: Boost >59.2V to Float 55.2V Connection Instructions: Connect the battery to the controller before the photovoltaic panel. Ensure battery voltage is sufficiently higher than the specified minimums to avoid voltage identification error: 12V battery > 10V 24V battery > 20V 36V battery > 30V 48V battery > 40V Product Specifications: Color: Black Material: Plastic Type: 100A Solar MPPT Controller Package Contents: 1 x Solar MPPT Controller (additional products not included) Note on Visual Discrepancies: Actual product color may vary slightly from the image due to lighting and different display settings. Measurement tolerance: +/- 1-3cm