The Victron Energy Cyrix-i 12/24V-400A intelligent battery combiner is a microprocessor-controlled heavy-duty relay for 12V and 24V battery systems. It automatically parallels battery banks when charging voltage rises and disconnects them as voltage falls. With 400A continuous current, 2000A peak current for one second and virtually no voltage loss, it supports efficient high-current charging.
Bidirectional voltage sensing allows charging from either battery side, while four selectable switching profiles adapt operation to different systems. A 30-second Start Assist, bicolour status LED and remote-monitoring microswitch add control for demanding dual-battery installations.