Why is my Victron energy SmartSolar MPPT 150/85 Controller battery not fully charged?
- BbriantaylorAug 4, 2025
Several factors can prevent your Victron Energy Controller from fully charging the battery. It could be due to: * A bad battery connection: Check the battery connection. * Cable losses being too high: Use cables with a larger cross-section. * A large ambient temperature difference between the charger and the battery: Ensure that ambient conditions are equal for the charger and battery. * For a 24V or 48V system: The wrong system voltage being chosen (e.g., 12V instead of 24V) by the charge controller: Disconnect the PV and battery, then reconnect the battery first. Make sure that the battery voltage is higher than 17.5V (24V system) or 35V (48V system).