SKU: 61835153921

REC DB9 to RJ45 CAN-Bus Cable (Victron Cerbo/ Venus/ CCGX)

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Description

REC DB9 to RJ45 CAN-Bus Cable (Victron Cerbo/ Venus/ CCGX)REC DB9 to RJ45 CAN Bus Cable: Reliable Communication Between REC BMS and Victron GX Devices Purpose Built CAN Bus Cable for Seamless BMS Integration The REC DB9 to RJ45 CAN Bus Cable provides a direct, reliable link between your REC Active BMS or REC Q BMS and Victron GX devices such as the Cerbo GX, Venus GX, or Color Control GX. This cable enables real time battery monitoring and control by transmitting CAN bus data from the BMS to the Victron

REC DB9 to RJ45 CAN-Bus Cable: Reliable Communication Between REC BMS and Victron GX Devices

Purpose-Built CAN-Bus Cable for Seamless BMS Integration

The REC DB9 to RJ45 CAN-Bus Cable provides a direct, reliable link between your REC Active BMS or REC Q BMS and Victron GX devices such as the Cerbo GX, Venus GX, or Color Control GX. This cable enables real-time battery monitoring and control by transmitting CAN-bus data from the BMS to the Victron ecosystem, ensuring your energy storage system operates with precision and safety.

Engineered for compatibility with the REC BMS CAN-bus protocol, this cable supports both 500 kbit/s (Cerbo GX) and 250 kbit/s (other GX devices) data rates. It eliminates guesswork and custom wiring, reducing installation time and the risk of communication errors that can lead to system faults or battery damage.

Key Features

  • Plug-and-Play Connectivity: Pre-terminated DB9 female connector for the REC BMS CAN port and RJ45 connector for the Victron GX device, with no soldering or crimping required.
  • Integrated Termination: Includes a matched RJ45 termination plug with 120 Ohms across CANH and CANL, ensuring proper bus termination for stable communication.
  • Durable Construction: High-quality cable jacket resists abrasion and environmental stress, suitable for permanent installations in battery compartments or control cabinets.
  • Precision Wiring: DB9 pinout follows REC specifications: Pin 2 (CANL + termination), Pin 3 (GND), Pin 7 (CANH + termination), guaranteeing correct signal integrity.
  • Versatile Compatibility: Works with REC Active BMS (4 cells) and REC Q BMS (5-16 cells), covering a wide range of lithium battery configurations.

Why Proper CAN-Bus Cabling Matters

In a CAN-bus BMS system, the physical layer is critical. Poor-quality cables or incorrect termination can introduce signal reflections, data corruption, and intermittent communication dropouts. This REC cable is designed to meet the exact impedance and termination requirements of the Victron CAN-bus network, reducing the risk of BMS communication failures that could lead to overcharge, undercharge, or cell imbalance.

Unlike generic DB9-to-RJ45 adapters, this cable includes the necessary end-device termination resistor, which is often overlooked in DIY setups. Without proper termination, the CAN bus may become unreliable, especially in electrically noisy environments like engine bays or inverter compartments.

Installation Guidance

Connect the DB9 end to the CAN port on your REC BMS, and the RJ45 end to the BMS-Can port on a Cerbo GX, or the VE-Can port on other GX devices. Insert the supplied termination plug into the unused CAN socket on the GX device to complete the bus. For optimal performance, ensure the cable is routed away from high-current power cables to minimise electromagnetic interference.

This cable is specifically designed for REC BMS to Victron GX communication and is not intended for use with other BMS brands or non-Victron devices without verifying pinout compatibility.

Applications

  • Integrating REC BMS with Victron Cerbo GX for remote monitoring via VRM Portal
  • Enabling closed-loop communication between REC-managed lithium batteries and Victron inverter/chargers
  • Retrofitting existing battery systems with CAN-bus control for improved state-of-charge accuracy
  • Professional marine, RV, and off-grid solar installations requiring robust BMS data links

Get Connected with Confidence

Ensure your REC BMS and Victron GX device communicate flawlessly. Add the REC DB9 to RJ45 CAN-Bus Cable to your system today and benefit from reliable, real-time battery management data.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
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  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 61835153921

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4.5 ★★★★★
Based on 18 reviews
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Product Reviews
A
Verified Purchase
AmandaV86🐾
Pawtucket, US
★★★★★ 5
BEST GLOW BALL! MY COLLIE BLUE HEELER MIX IS OBSESSED
Size: Large, Pattern Name: Pack of 1
Well if I could just say...Mommas a fan too....BUT I think my dog should be the sponsor of CHUCKIT because he owns everything and he BREATHES, DREAMS, RUNS with #chuckit balls!! Since 8wks. old & Now 10 yrs young, BDAY=8.10.26....he wakes up with it in his mouth and falls asleep with IT! I HAVE THEEEE PROOF LOL SERIOUSLY OBSESSED! #chuckit #makemydogyoursponsor WE HAVE EVERY BALL X10 FOR SOME, launchers, bucket o balls , you name it so yeah #obssesedisanunderstatement #bordercollieblueheelermix #HARLEY ♡ nice colors and the durability is amazing 👏 know if you have a chewer I'm not sure because he just likes to catch the ball and then chew it sometimes and then leave it alone, until next time around. But the GLOW BALL just being cewed for so long and the textire is obviously different so it does end up cracking and you throw it away, definitely different rubber but highly recommend them both actually ALL of them👌🎉🥳🫶🏼 my Sisters 2 yr old pit destroyed them in minutes but only FOR PLAY , so IF YOU DONT WANT THAT BALL chewed to pcs. Put it up LOL and oh all of the balls EXCEPT the GLOW BALL stay true to form and durability, for real Harleys had some of them for years!! And nothing wrong with the CHUCKIT ball 10☆☆☆☆☆☆☆☆☆☆ SIZE is perfect too he love the medium 2.5" ball. Perfect for catching for hrs on end. You also have a choice you can get squeaky, crunchy,or nothing or glow in the dark, 3 sizes to fit your pupper.. .. so many choices and it doesn't have to be a ball you can pick from a ton of toys ' tuggers ,launchers and indoor toys too. As for the Chew resistance...mm touchy...like I said. Aggressive chewer are more likely to tear it up way quicker than the just playing mainly like I want to fetch dog. Either way. I dont purchase any other brand besides chuck it. Has always my pick, like 20+ yrs now lol. Hands down. This is not a paid thing or promoted or whatever. Just felt i should review for chuck it♡ to date has made my dog happy and healthier for years to come♡ thanks
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 8, 2026
L
Verified Purchase
Laura A.
Charlottesville, US
★★★★★ 4
These are great!
Size: Medium, Pattern Name: Pack of 2
My dog loves these and now won't play fetch with any other ball. I love that they glow bright so we can play fetch after I get home from work (it gets dark around 5 now). The dog and I both like that they whistle. They also squish easily and he loves to chomp on them while he runs around. Only reason I took off a star is because he chewed a piece of it off and now it doesn't whistle or fly as far. That being said, it seems to stand up well to all the chomping he does on it. I should not have left him alone with it, I think he held it down and pulled on it. If your dog usually makes it his mission to destroy things I wouldn't leave him alone with it, other than that I absolutely recommend these. Update 12/12/20: I got another dog last year and he also loves these balls. Probably the favorite ball for both dogs, they go into hyperdrive when they see them. New dog tends to be more destructive than the older one and I still don't leave them unattended with these balls, but new dog has not destroyed one. I made the mistake of leaving one in the Chuckit overnight once. Ball was wet from playing in the snow and became lopsided. Now doesn't fly very well but my weird dog still likes it. It is also starting to dry out and crack. None of the other glow balls have done this, I'm assuming it is also from leaving it in the Chuckit overnight. Other than that, these balls are great. I did read a few reviews that said charging them with UV light made them stay brighter for a longer period, but I did not notice a difference in my quick test of this theory. Just keep a good flashlight with you and brighten them up as needed.
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Reviewed in the United States on December 6, 2018
M
Verified Purchase
M
Cuba, US
★★★★★ 5
Good for night sessions
Size: Medium, Pattern Name: Pack of 1
Picked this up for evening fetch sessions and it’s been a win. It charges up fast, couple minutes under a lamp or in sunlight and it’s good to go, and the glow is genuinely bright, not the sad dim purple some of these put out. Makes it way easier to find in the yard at dusk, and the dog can actually track it. It’s a little on the softer side compared to a regular tennis ball, but durable enough to hold up to my big dog, who is not gentle with toys. Still kicking after plenty of chomping and slobber. Fits a standard Chuckit! launcher perfectly, which is the whole point. Pros: • Glows brightly and clearly in the dark • Charges fast from any light source • Holds up well even with a big, enthusiastic chewer • Fits standard ball-throwing sticks • Great for evening or early-morning fetch Cons: • A bit softer than a regular tennis ball — a determined power-chewer could probably destroy it eventually • Glow fades after a while, so you’ll need to recharge it during long sessions • Only glows if it’s been charged, which is obvious but easy to forget Tips: • Charge it under a bright light or in the sun for a few minutes before heading out • A flashlight works in a pinch if you forgot to charge it • Keep it out of permanent fetch duty — rotate with a regular ball so it lasts longer • Not a chew toy, even though it’s tempting to leave it with the dog Five stars. If you’ve got a dog and a yard, this makes evening fetch actually doable.
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Reviewed in the United States on May 24, 2026
V
Verified Purchase
VOKLST
New York, US
★★★★★ 5
Westies Fav
Size: Small, Pattern Name: Pack of 1
Best Westie ball ever, my dog loves this ball. Exactly her size! 3" tennis balls are too big & she rips the fur off. this silicone-ish ball has no fur & is 2&1/2 " We have 2" balls from her electronic ball laucher, but she still loves this glow in the dark best!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 4, 2026
B
Verified Purchase
Book Junkie
Pawtucket, US
★★★★★ 5
Best dog ball in the world!
Size: Large, Pattern Name: Pack of 1, Size: Large, Pattern Name: Pack of 1
My dog is singularly obsessed with playing ball. He would drop a steak to chase a ball. (He'd return to the steak, but not without the retrieved ball. He's not an idiot.) He makes dangerous leaps, crashes into trees, and runs fast enough to catch thrown balls before they even hit the ground. Since he doesn't care about his own wellbeing, it's my job to protect him as much as I can. And a lot of balls are hard enough to cause him pain or dental damage when he mistimes a catch. Enter the ChuckIt Glow Ball! The minute Cowboy got his first Glow Ball, he no longer had any interest in the dozens of tennis balls scattered around the house and yard. If I took the Glow Ball away and instead threw a tennis ball, Cowboy would run to retrieve the ball, then return without it and begin looking all over the house for the Glow Ball. The Glow Ball is tough enough to survive Cowboy's big, sharp chompers, yet it's soft enough to do no harm when it hits him in the face. The glow feature is a huge bonus, too. Cowboy gets distracted by chipmunks and squirrels when we're playing, so he sometimes can't remember where he dropped the ball to pursue the interloper. If the ball was exposed to enough light before it was misplaced, it will be easy to find once the sun goes down. (Otherwise, Cowboy always finds it eventually.) When I'm feeling nocturnal, I'll put the ball under a light for a few minutes to activate the electrons, then treat my boy to a middle-of-the-night game of fetch. I was so happy to see these on sale, I bought a lifetime supply for my pantry. The size guide seems accurate. ChuckIt recommended the large size for a dog of Cowboy's weight and that size is perfect. Highly recommended product.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 14, 2024

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