Victron Energy Cyrix-Li-Charge 12/24V 120A Intelligent Charge Relay for Lithium BMS Systems
4.1 (7)
$75.65$37.83
The Victron Energy Cyrix-Li-Charge 12/24V 120A intelligent charge relay connects a battery charger under BMS control with 3-second delay safety logic — buy online at $37.83, 50% off the $75.65 compare-at price.
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Victron Energy Cyrix-Li-Charge 12/24V 120A Intelligent Charge Relay is a BMS-controlled charge connect relay for lithium battery systems — best for owners of Victron BMS-equipped lithium banks who need safe, automatic charger engagement. Now $37.83, a 50% discount off $75.65. Buy online and save $37.82 today.
How It Works with VE.Bus BMS
The Cyrix-Li-Charge engages 3 seconds after receiving the BMS's charge-enable signal and disengages immediately if the control input goes free-floating — signaling cell over-voltage or over-temperature. It re-checks hourly, disengaging briefly to confirm the charger is still enabled before re-engaging with a 3-second delay.
Control: BMS charge-enable input with 3-second engagement delay
Wiring Overview
Connect the main terminals between charger output and battery positive, and run the control input to your BMS's charge-enable output. Follow the Victron manual for torque specs and cable sizing for 120A continuous current.
Cyrix-Li-Charge vs Cyrix-Li-Load
The Charge model handles charger-to-battery connection under BMS control; the Load model does the same for load circuits. Use both on fully BMS-managed lithium systems where no external interrupt is desired.
Price and Deal Value
Buy at $37.83 — half off. Stack coupon OUTPOST12 for another 12% and cross $45 for free shipping. Genuine Victron lithium-system protection at an affordable sale price.
Features
120A BMS-controlled charge connection built for Victron-managed lithium battery systems
Auto disengage on cell over-voltage or over-temperature protects expensive lithium banks
50% off at $37.83 vs $75.65, plus an extra 12% coupon for maximum deal savings
Series: Cyrix-Li-Charge
Category: Power Accessories
Product Type: Intelligent charge relay
Compatibility: Victron VE.Bus BMS and BMS-controlled lithium systems
Control Logic: 3-second engage delay, immediate disengage on BMS free-floating input, hourly charger re-check
Current Rating: 120A
System Voltage: 12/24V DC
Seller: PowerHaven Outpost
Product Details
Cyrix-Li-Charge 120A — Smart Lithium Charging, Half the Price
Protect your lithium investment. The Victron Cyrix-Li-Charge lets your BMS gate charger connection automatically — no manual switching, no over-charge risk — at $37.83, 50% off list.
Best Fit
Victron VE.Bus BMS lithium installations
Systems where the charger lacks a BMS-enable two-wire connection
Pair with Cyrix-Li-Load for complete BMS-managed disconnect
Deal Stack
Sale price $37.83 + OUTPOST12 coupon (extra 12% off) + free shipping over $45 = the cheapest route to genuine Victron lithium protection.
Frequently Asked Questions
Where can I buy the Victron Cyrix-Li-Charge online?
Here at PowerHaven Outpost — $37.83, in stock, ready to order online.
What is the current price and discount?
$37.83 — a 50% discount off the $75.65 compare-at price, a savings of $37.82.
How does it work with a VE.Bus BMS?
It engages 3 seconds after the BMS enables charging and disengages instantly if the control input goes free-floating due to cell over-voltage or over-temperature, then rechecks hourly.
How do I wire the Cyrix-Li-Charge 120A?
Main terminals between charger and battery positive; control input to the BMS charge-enable output. Size cables for 120A continuous per the Victron manual.
Cyrix-Li-Charge vs Cyrix-Li-Load — which do I need?
Charge version switches the charger circuit; Load version switches loads. BMS-protected systems typically use one of each.
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Customer Reviews
7
★★★★★★★★★★5.0
c**g
Verified
Works perfectly with my BMS
The BMS-controlled engagement logic is exactly what I needed for my lithium setup. The 3-second delay prevents the inrush chaos I had with a dumb relay, and it engages and disengages cleanly every time. Installation was simple with clear terminal markings. Very impressed so far.
★★★★★★★★★★4.0
h****z
Verified
Solid relay, wish for better instructions
Functionally it's excellent — no voltage drop across the contacts and the charge logic works as advertised with my BMS. The included documentation is a bit sparse on wiring examples for unusual setups, so plan to do some homework. Once wired, it's been faultless.
★★★★★★★★★★5.0
t****e
Verified
Exactly as described
Half the price of the local marine store and 100% genuine. My charger now engages the lithium bank only when the BMS allows it, which is how it should be done. Great product.
★★★★★★★★★★5.0
w*****s
Verified
Reliable
Works flawlessly with my BMS. Buy it.
★★★★★★★★★★3.0
b**r
Verified
Good product, hums a little
Does its job and the delay logic works well. There's a faint audible buzz when it's engaged, which is normal for these but louder than I expected in a quiet boat at night. Electrically it's been perfect for three months.
★★★★★★★★★★2.0
u**e
Chattering issue in my install
Mine chattered on and off rapidly when the charger was right at the BMS enable threshold, which worried me about contact wear. Moved to a different BMS output channel and it settled down, but the sensitivity caught me off guard. Function is okay now but the first week was stressful. Hoping it holds up long-term.
★★★★★★★★★★5.0
a****i
Verified
Forty years of boat wiring, this is the right way
I rewired my trawler's charging system last spring and decided to do the lithium integration properly this time. The Cyrix-Li-Charge respects the BMS direction instead of fighting it, and that 3-second delay eliminates the contactor slam you get with cheap relays. Contacts show no pitting after a season of daily cycling. My battery tech even approved, and he approves of nothing. Worth every dollar even at full price.
