- Efficient automatic voltage recognition: negative control circuit automatically identifies system voltages, making it easy to connect solar panels, batteries and the positive terminal of the solar charge controller for improved efficiency. - Auto voltage correction and load control: automatically adjusts charge and discharge voltages; includes an assumed timer for street lights and selectable load modes to extend battery life. - Reliable data logging: the controller records runtime, error events and full battery charges, ensuring important information is not lost. - Easy installation and operation: positioned near the battery to minimise voltage interference from long wires; lightweight data display and straightforward parameter adjustments. - Compact, practical design: focused for easy integration in small or tight spaces, with clear status information and dependable performance. 2-3 practical use scenarios: - Street lighting with timer: automatically manages on/off cycles and load modes to keep batteries healthy and lights consistent. - Remote cabin, RV or boat systems: reliable data logging and voltage management for off-grid power with limited maintenance. - Solar-powered signage or equipment with long cable runs: near-battery placement minimizes voltage drop while providing easy configuration and monitoring.