1. Keep the battery charged and can be connected full time without overcharging;

2. Temperature-compensated to ensure optimum charge voltage according to ambient temperature;

3. Unique Gel Cell battery adjusted software allows for a slightly lower charge voltage and higher store voltage to protect sensitive true Gel Cell batteries;

4. Multi-stage charging program allows for optimal constant battery levels without overcharging;

5. Automatically switches to float/mainenance voltage mode after fully charging the battery.