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Our engineers spec complete Victron power systems for your application: batteries, inverters, MPPT, and monitoring.
Talk to an EngineerTechnical Specifications
| Type | Intelligent battery combiner (relay) |
|---|---|
| Nominal Voltage | 12V/24V auto (24V/48V on Cyrix-i 24/48) |
| Continuous Current | 120A to 400A (model dependent) |
| Cranking Current | 180A to 500A (model dependent) |
| Peak Current | up to 2,000A |
| Operation | Automatic voltage-sensing with trend detection |
|---|---|
| Protection Rating | IP54 |
| Weight | 0.1 kg to 0.9 kg (model dependent) |
| Warranty | 5 years |
| Certifications | CE |
Victron Cyrix intelligent battery combiners for automatic parallel charging.
The Cyrix range are microprocessor-controlled battery combiners that automatically connect a starter and auxiliary battery in parallel when either reaches a preset charge voltage, then disconnect them under load or when voltage drops.
Fully sealed and available in 120A, 230A, and 400A ratings for 12/24V and 24/48V systems, they combine banks only when needed, with no manual switching or diode losses.
Used in Alchemy mobile and off-grid power systems for dual-battery charging, starter-battery isolation, and automatic bank management.
Common Applications
Shipping & Lead Time
Shipping & Lead Time
Ships from our Houston, TX warehouse. Most items ship within 1–3 business days.
Pickup available at 6501 Navigation Blvd, Suite E1, Houston, TX 77011. Usually ready in 2–4 days.
Freight shipping required for batteries and large enclosures. Contact us for a freight quote on orders over 150 lbs.
Warranty & Support
Warranty & Support
All Alchemy-branded products include a 2-year limited warranty covering defects in materials, assembly, and BMS performance under normal use.
Victron products carry the manufacturer’s standard warranty (typically 5 years).
For warranty claims or technical support, contact our engineering team.

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