The Victron Cyrix is an intelligent battery combiner (voltage sensitive relay). When either battery is being charged, by the alternator, a charger or solar, the Cyrix connects the two batteries so both get charged. When charging stops, it disconnects them, so running your fridge or lights can never flatten your start battery. The Cyrix-ct suits most vehicles, caravans and boats. The heavy-duty Cyrix-i 400A adds a microprocessor-controlled, low-loss relay for big battery banks and high-current systems.
- Bi-directional: combines when either battery reaches charge voltage.
- 12/24V auto-detect (Cyrix-i 24/48V version for 24/48V systems).
- Engine start assist (emergency start) input on Cyrix-ct.
- Battery Combiner Kit includes the Cyrix-ct plus cables and fuses for a complete dual-battery install.
Charging a lithium house battery from the alternator? Use an Orion-Tr Smart DC-DC charger instead.
| Brand | Victron |
|---|---|
| SKU / Part No. | CYR010120011 |
| Category | Battery Isolators & Combiners |
| Weight | 0.1 kg |
| Model options | Cyrix-ct 12/24V-120A, Cyrix-ct 12/24V-120A Battery Combiner Kit, Cyrix-ct 12/24V-230A, Cyrix-i 12/24V-400A, Cyrix-i 24/48V-400A |
| Availability | Special Order — call (07) 4052 1901 |
Fast shipping Australia-wide. Most in-stock orders ship within 1–2 business days from our Cairns warehouse. Freight is calculated at checkout based on size and destination.
Local pickup. Collect from our store at 178 Scott St, Bungalow QLD 4870 — Mon–Thu 8am–4:30pm, Fri 8am–4pm. We'll let you know as soon as your order is ready.
Returns. Faulty or incorrect items can be returned in line with Australian Consumer Law and our returns policy. Get in touch on (07) 4052 1901 and we'll sort it out.
