9-Phase Energy-Saving Charger-Tester-Maintainer 12V 1A The OptiMate 4 DUAL program includes two charging programs - program 1 is for direct charging of one battery - program 2 allows safe and unsupervised charging via the 12 V socket OptiMate 4 Dual Program performs tests before and after charging and can recover a "fully discharged" battery from 0.5 Volts. Special features of the CAN bus program: - Automatic activation WITHOUT KEY and continuous maintenance until the charger is disconnected. Safe low-voltage pulse desulphation. - CHARGING AMPS: 1A (constant current) - USAGE: Indoor / Outdoor (minimum temperature: -40 F / -40 C). - SAVINGS: 0.5 V low voltage start-up + 2-step desulphation recovery (1-step low-voltage pulse rescue during CAN-bus mode). - IDEAL FOR: 12V STD, AGM, GEL 3 - 50Ah batteries. - INPUT: Global (100-240V 50-60Hz), High Efficiency (CEC Listed), Fully Sealed. - STYLE: Weatherproof case with wall mounts, with 180 cm AC power cord and 180 cm charging cable terminating in the SAE connector. Weatherproof battery cable and standard drum clip set included. - SAFE: no risk of overloading. Totally safe for the vehicle's electronics. Sparks suppressed. Safe for long-term battery maintenance. Automatic shut-off if short-circuited or battery disconnected. 3-year limited replacement warranty. CODE: 1-0784 CZ