Victron Cyrix-Li-Intelligent Charge Relay 12/24V-230A
Victron Cyrix-Li-Intelligent Charge Relay 12/24V-230A
230 A continuous, IP54, direct VE.Bus BMS control for LiFePO4 safety

DESCRIPTION
Victron Cyrix-Li-Charge 230A: Intelligent Charge Relay for LiFePO4 Battery Systems
Precision Charge Control for Lithium Battery Protection
The Victron Cyrix-Li-Charge 12/24V-230A is a microprocessor-controlled intelligent charge relay designed to integrate seamlessly with Victron VE.Bus BMS and LiFePO4 batteries. It acts as a critical second line of defence, automatically connecting or disconnecting a battery charger based on signals from the BMS to prevent cell overvoltage and over temperature conditions. This ensures your lithium battery bank remains within safe operating limits, extending service life and maintaining system reliability in demanding mobile, marine, and off-grid applications.
Unlike generic voltage sensing relays, the Cyrix-Li-Charge responds directly to the VE.Bus BMS Charge Disconnect output, providing a coordinated protection strategy that generic relays cannot offer. This reduces the risk of cell damage from overcharging, a common failure point in lithium systems without proper BMS integration.
How It Works
The Cyrix-Li-Charge engages the charger connection with a 3-second delay when the BMS Charge Disconnect signal is high and it detects sufficient voltage on both the charger and battery terminals. It disengages immediately if the BMS signals a fault, such as cell overvoltage or over temperature, isolating the charger to prevent further stress on the cells. After a brief recovery, it attempts to reconnect automatically, with progressively longer delays if faults persist, preventing rapid cycling that could damage components.
Key Features
- 230 A continuous rating at 12 V or 24 V for high-current charging systems
- Direct VE.Bus BMS control for coordinated lithium battery protection
- Immediate disengagement on cell overvoltage or over temperature signals
- Automatic reconnection with intelligent delay logic to avoid nuisance cycling
- Built-in transient voltage suppression protects against voltage spikes during disconnection
- LED status indicator for at-a-glance operational and fault monitoring
- Low current consumption (<4 mA when open) minimises parasitic drain
- IP54 rated enclosure resists dust and water splashes for harsh environments
- 3/8"-16 (Approx. M10) stud terminals suit heavy-duty lugs for secure, low-resistance connections
Designed for Demanding Environments
With an IP54 protection rating and robust construction, the Cyrix-Li-Charge is built to withstand the vibration, temperature swings, and moisture common in vehicle and marine installations. The compact footprint (65 x 100 x 50 mm) and integrated mounting flanges allow flexible installation in tight spaces, while the included 1-metre control cable simplifies connection to the VE.Bus BMS.
Applications
This charge relay is ideal for systems where a VE.Bus BMS manages Victron LiFePO4 batteries but the charger cannot be directly controlled by the BMS. Typical uses include:
- Marine and RV lithium battery systems with high-output alternators or shore chargers
- Off-grid solar installations requiring reliable charge disconnect for battery longevity
- Commercial vehicle and emergency service setups where battery safety is critical
Why Choose the Cyrix-Li-Charge?
Generic charge relays lack the intelligence to interpret BMS fault signals, leaving lithium batteries vulnerable to overcharge damage. The Cyrix-Li-Charge bridges this gap, delivering precise, automated protection that reduces the risk of thermal runaway and premature capacity loss. Its 230 A continuous rating supports large battery banks, while the low standby draw preserves battery state of charge during storage.
For installers and system integrators, the Cyrix-Li-Charge simplifies wiring and enhances safety by centralising charge control through the proven Victron ecosystem. It eliminates the need for complex workarounds or additional contactors, saving time and reducing potential failure points.
Take Control of Your Lithium Charging
Equip your Victron LiFePO4 system with the Cyrix-Li-Charge 230A to ensure every charge cycle is safe, controlled, and optimised for battery health. Add to your system today and experience the confidence of fully integrated lithium protection.
SKU: Vic-CYR010230430
SPECIFICATIONS
Specifications
| Model | Cyrix-Li-Charge 12/24V-230A Intelligent Charge Relay |
|---|---|
| Part Number | CYR010230430 |
| Continuous Current And Breaking Capacity At 12 V Or 24 V | 230 A |
| Breaking Capacity At 48 V | 80 A |
| LED Status Indication | Yes |
| Control Cable | Included (length 1 m) |
| Connect Voltage | 13.0 V / 26.0 V / 52.0 V |
| Current Consumption When Open | <4 mA |
| Protection Category | IP54 |
| Weight Kg (lbs) | 0.27 (0.6) |
| Dimensions H x W x D In mm (H x W x D In inches) | 65 x 100 x 50 (2.6 x 4.0 x 2.0) |
| SKU: | Vic-CYR010230430 |
| Barcode: | 8719076022237 |
| Model #: | CYR010230430 |
| MPN: | CYR010230430 |
WARRANTY
Victron Energy Limited Warranty Policy
Direct Customers
Victron Energy provides the following warranty to any direct customer (OEM, distributor or dealer) in relation to any products that Victron Energy has directly sold to the direct customer. This warranty is not an end-user warranty between Victron Energy and an end-user, and end-users shall not have any rights or remedies under this limited warranty towards Victron Energy directly. The direct customer shall, in turn, ensure that the end-user is provided with a warranty identical to this warranty, subject to applicable local mandatory law.
End-Users
Victron Energy may also provide a warranty directly to end-users, in which case the below warranty conditions equally apply to such warranty. In that case, end-users shall claim their warranty at their place of purchase or through the original direct customer of Victron, which can be found through the support section on Victron’s website https://www.victronenergy.com/support. Hence, the direct customer shall on behalf of Victron Energy deal with any warranty claims made under any warranty that Victron Energy may provide directly to end-users. This support section on Victron’s website https://www.victronenergy.com/support will provide further guidance on the procedure for end-users to make a claim under this limited warranty.
If the end-user is a consumer – a natural person who is acting for purposes which are outside that person's trade, business, craft or profession – the following applies. The rights and remedies granted to the consumer under this limited warranty are without prejudice to the consumer’s statutory rights. Furthermore, the consumer is entitled by law to remedies from the seller free of charge in the event of a lack of conformity of the goods (such as repair, replacement, price reduction or rescission), which remedies are not affected by this limited warranty.
Warranty
Victron Energy warrants its products to be free from defects in workmanship and materials for a period of 5 years from the date of purchase by the original end-user, with a maximum of 66 months from the Victron Energy invoice date. Exceptions on this are: lead-acid batteries: 2 years from date of purchase by the original end-user, with a maximum of 30 months from the Victron Energy invoice date, Lithium batteries: 3 years from date of purchase by the original end-user, with a maximum of 42 months from the Victron Energy invoice date. In addition to this, proof of correct battery usage is required when making a battery warranty claim.
For a 10% surcharge on the current net price for products that came with a 5-year warranty, an additional 5 years of warranty can be purchased by Victron’s direct customers, bringing the total warranty to 10 years. Warranty extensions need to be applied for ultimately one year before the expiration of the original term. Victron may ask proof that the product was still functional at the time of purchase of the extended warranty.
During the warranty period, Victron Energy will, at its discretion, repair, replace or (partly) credit the defective product free of charge. The warranty does not include performing or reimbursing de‐installation, transportation, and re‐installation.
This warranty will be considered void if the unit has suffered any physical damage or alteration, either internally or externally, and does not cover damages arising from improper use like:
- Reversed battery polarity.
- Inadequate connection.
- Mechanical shock or deformation.
- Contact with liquid or oxidation by condensation.
- Use in an inappropriate environment (dust, corrosive vapour, humidity, high temperature, biological infestation, etc.).
- Breakage or damage due to lightning.
- Connection terminals and screws destroyed or other damages, like overheating, due to insufficient tightening.
- For any electronic breakage except due to lightning (reverse polarity, over‐voltage due to external cause), the state of the internal control diode and/or the input/output X and Y capacitors determine the warranty.
This warranty will not apply where the product has been misused, neglected, improperly installed, or repaired by anyone other than Victron Energy or one of its authorized Repair Centres. In order to qualify for the warranty, the product must not be disassembled or modified.
This warranty and our warranty obligations thereunder (repair, replacement or credit) are the direct customer’s and, if applicable, the end-user’s sole rights and remedies and our sole obligations with respect to any defective and/or non-conforming product or breach of warranty and is subject to and without prejudice to the limitations of liability in this warranty.
Victron Energy shall not be liable for damages, whether direct, incidental, special, or consequential, even caused by negligence or fault.
As a product requires service, it must be brought back to the place of purchase. In case no contact can be made with the merchant, or if he is either unable or not allowed to provide service, direct contact should be made with Victron Energy through the support section on Victron’s website.
In case Victron Energy replaces a product, it will own the replaced product. Victron Energy owns all parts removed from repaired products. Victron Energy uses new or reconditioned parts made by various manufacturers when performing warranty repairs or building replacement products.
If Victron Energy repairs or replaces a part of a product, its warranty term is not extended: the warranty will apply for the remaining term of the original warranty term. For example, if Victron Energy replaces a product with a 5-year warranty after 3 years, the warranty of this product will apply for another 2 years, with a minimum of 6 months.
All remedies and the measure for damages are limited to the above. Victron Energy shall in no event be liable for consequential, incidental, contingent or special damages, even if having been advised of the probability of such damages.
The foregoing limited warranty provided by Victron Energy is in lieu of any other warranties, express or implied arising by law, course of dealing, course of performance, usage of trade or otherwise, of any kind whatsoever including, without limitation, warranties of merchantability or fitness for a particular purpose, with respect to any product. The above is without prejudice to the arrangement for consumers detailed above.
Life Support Policy
As a general policy, Victron Energy does not recommend the use of any of its products in life support applications where failure or malfunction of Victron Energy's product can be reasonably expected to cause the failure of the life support device or to significantly affect its safety or effectiveness. Victron Energy does not recommend the use of any of its products in direct patient care. Victron Energy will not knowingly sell its products for use in such applications unless it receives in writing assurances satisfactory to Victron Energy that the risks of injury or damage have been minimized, the customer assumes all such risks, and the liability of Victron Energy is adequately protected under the circumstances.
Warranty on repairs for products outside their warranty period
The warranty period on products that are outside their warranty period and have been repaired by Victron Energy or one of the Victron Energy Repair centres is six (6) months from delivery. The same applies to spare parts and circuit boards that have been supplied or repaired by Victron Energy.
Transport
It is the responsibility of the sender to sufficiently package these products. The transport must be organized in a way to avoid any damage, especially when a single unit or heavy unit is sent.
Severability
If a part of the terms and conditions of this warranty is held invalid, void or unenforceable due to any particular national or international legislation, it shall not affect other parts of the terms and conditions of this warranty.
Applicable law
This warranty is exclusively governed by the laws of the Netherlands, to the exclusion of the UN Convention on Contracts for the International Sale of Goods.
Contact details
Victron Energy B.V. | De Paal 35, 1351 JG Almere, The Netherlands | https://www.victronenergy.com/support














































