SKU: 10426562628

REC 2Q BMS 16S Electronic Unit for 4-16 cells

$321.54 $357.27
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Description

REC 2Q BMS 16S Electronic Unit for 4-16 cellsREC 2Q BMS 16S Electronic Unit: Advanced Battery Management for 4 to 16 Lithium Cells Precision Control for 12V to 48V Lithium Battery Systems The REC 2Q BMS 16S Electronic Unit delivers professional grade battery management for lithium battery packs with 4 to 16 cells in series. Designed and manufactured in Europe, this BMS provides comprehensive protection, monitoring, and communication for 12V, 24V, 36V, and 48V nominal systems, making it suitable

REC 2Q BMS 16S Electronic Unit: Advanced Battery Management for 4 to 16 Lithium Cells

Precision Control for 12V to 48V Lithium Battery Systems

The REC 2Q BMS 16S Electronic Unit delivers professional-grade battery management for lithium battery packs with 4 to 16 cells in series. Designed and manufactured in Europe, this BMS provides comprehensive protection, monitoring, and communication for 12V, 24V, 36V, and 48V nominal systems, making it suitable for marine, off-grid, electric vehicle, and industrial applications where reliability is critical.

Unlike generic BMS units that offer limited configurability, the REC 2Q provides galvanically isolated communication interfaces, high-accuracy measurements, and flexible integration options. It addresses common risks such as cell imbalance, over-discharge, and thermal runaway by combining precise monitoring with programmable protection thresholds.

Key Features

  • High-accuracy cell monitoring with ±1 mV voltage resolution for precise state-of-charge (SOC) and state-of-health (SOH) calculations
  • 18-bit shunt current measurement with 19.5 mA resolution at ±500 A for accurate energy tracking and Wh counting
  • Galvanically isolated RS-485 and CAN Bus for noise-immune communication with inverters, chargers, and monitoring systems
  • Integrated 25 Ω pre-charge circuit with adjustable delay to protect contactors and extend system life
  • Passive cell balancing (4 Ω) with temperature protection to maintain pack health
  • Remote ON/OFF and Control Pilot (CP) for EVSE for seamless integration with electric vehicle supply equipment
  • Real-time clock with error log storing the last 7 faults for simplified diagnostics
  • Compliant with ISO16315, ISO10133, EN61558-1, EN61558-2, and EN50498 for marine and industrial safety

Flexible Communication and Integration

The REC 2Q BMS supports CAN Bus protocols for managed batteries, with pre-configured options for Victron, SMA, Solax, Studer Innotec, Growatt, Solis, Pylontech, Deye, TBB Power, TC Charger, Zivan, and custom configurations. Bitrates from 100 kbit/s to 1 Mbit/s and both 11-bit and 29-bit IDs are supported. The galvanically isolated RS-485 interface enables direct connection to the optional REC Wi-Fi unit for wireless configuration and data logging, or integration into home automation and industrial control systems.

Built for Demanding Environments

With an operating temperature range of -20 °C to 70 °C and IP32 protection, the REC 2Q BMS is engineered for reliability in mobile and stationary installations. The compact 190 x 98.4 x 38 mm housing and 4.5 mm mounting holes allow straightforward installation in confined spaces. The unit's low power consumption (180–190 mW during operation at 48V) minimises parasitic drain on the battery pack.

Applications

  • Marine lithium battery systems requiring ISO compliance
  • Off-grid solar storage with 12V to 48V battery banks
  • Electric vehicle conversions and EVSE integration
  • Industrial backup power and remote monitoring
  • Custom battery builds needing flexible communication protocols

Whether you are upgrading an existing lithium battery system or building a new pack from scratch, the REC 2Q BMS 16S Electronic Unit provides the precision and adaptability needed for safe, long-lasting performance.

Add the REC 2Q BMS to your battery system today and gain complete control over your lithium cells with European-engineered reliability.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • 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: 10426562628

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4.6 ★★★★★
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Verified Purchase
Julie Scott
Dallas, US
★★★★★ 5
Leaked after 2nd Use
Size: 50-Foot, Style: Expandable Fabric
It leaks. I read many reviews and finally decided on this Camco EvoFlex water hose to use with our new travel trailer. I loved that it was flat, light, and flexible. On our 2nd campng trip it started leaking. The water was seeping through the hose near the connection to the faucet. (it was not dripping from the faucet connection) There must be small holes in the hose. We did not notice it at first because it was so slow, but after a few hours we checked on our hook ups and we noticed water puddling and dripping down the hose. Luckly we had a back up that was not this brand that we switched to. We tried it again the next day hoping we had just set it up wrong, but it continued to leak water through the hose. I was disappoinnted because this hose was what I was initially looking for.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on November 10, 2025
C
Verified Purchase
Claire Guiltner
Port Orchard, US
★★★★★ 5
Awesome Hose for the Price and the Perfect length
Style: -20-Degree, Size: 12 Feet
We loved this product and was so great over the winter. It is so think and does not freeze over the winter. Temp was 0 and below and it had no issues. The length is perfect for a camper hookup and you are not always tripping or having a bunch of hoses laying around. It was so easy to use and install. The hose is stiff so it does not kink but is easy to move around. It is very thick so it has held up well.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 31, 2026
J
Verified Purchase
josh
Houston, US
★★★★★ 5
good hose
Style: -20-Degree, Size: 25-Foot
I installed it about 2 weeks ago, after reading negative reviews, I was prepared for the worse. I did as instructed, kept the thermostat sensor next to the water source and plugged both ends, however the middle of the body of the house was lightly still coiled. When I tried, the water was leaking from under the insulation, where connected to the water source, just as I saw it in the negative reviews. Then I remembered, the instruction clearly say, the house must be uncoiled, so I disconnected, and stretched it out completely in a straight line taking out any kinks, then I took the ends and plugged them in the outlet and inlet. Tested it again and NO LEAK, it works perfectly. That night, it was 25F degrees, the hose was warm to the touch and no leak (the pressure in my sink faucet doubled, I suppose my old hose was not as efficient as new one, etc...). So, it works. I must say, that the instructions, indicate that the heating element turns on below 50F degrees, my hose. turns on when it it is below 35F roughly, which is fine.
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Reviewed in the United States on December 1, 2025
B
Verified Purchase
B
Houston, US
★★★★★ 5
A company that stands behind its product
Style: -20-Degree, Size: 50-Foot
I bought one of these hoses at the end of January and it worked great right off the bat. However, fast forward to beginning of this month and the hose itself had failed, leaking water. I was out of Amazon's warranty window, so reached out to Camco directly for guidance on how to get it replaced. Fast forward a week and there's a brand new replacement hose delivered right to my door. Easy communication, fast turnaround and no questions asked (granted, the photos I provided were pretty clear as to the issue). So sure, its not ideal that the first one failed but in a world where it can be difficult to find a reliable brand - I feel very secure working with these guys and they earned my confidence. Hose works great btw. No issues with the connections leaking, water quality, or temperature. This is the one I'd buy again if/when I have to.
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Reviewed in the United States on May 18, 2025
R
Verified Purchase
ra
New York, US
★★★★★ 4
Great idea, but the quality control..
Style: -20-Degree, Size: 25-Foot
*TLDR, Too Long Didn't Read* Do Not waste your money. Failed right out of box. Leaked at above freezing temps With upstream pressure regulator. Did not test the heating feature due to the hose leaking from under the insulation sleeve somewhere. Very disappointed. Build your own or insulate well. If you do choose to take a gamble with this item then Thoroughly test it as soon as it arrives and take pics/ video. Would share the video but it won't upload correctly, (not too tech savvy), but I know plumbing, mechanical, etc. The long review: Other reviews have mentioned the hose leaking or failing Even with pressure regulators (which we use and replace regularly) - this is factual. Failed on first hookup Before it reached the freezing temps. Please Do Not Buy this sub par constructed item. It's a shame really since we have bought a lot of Camco branded items over the years. Our unit seemed ok out of the box (bought on sale weeks before the cold season and didn't need it til about 6 days after the return window closed). I should have tested as soon as it arrived but Optimistically Trusted with the 'name brand' mindset. Amazon was courteous, but did not do anything for us except refer us to Camco to try to get them to replace the defective hose. Take our hard learned lesson and many others and Do Not buy these products. Either research youtube for making one from scratch yourself or over insulate your water lines/ hoses and set everything to drip during sub freezing temps (mostly applying to full time rvers or camping in colder climates). We bought the 1in diameter 1/2 in thick 6ft foam pipe insulation (about R2 insul value), foil backed fiberglass pipe insulation (R6 insul value), and then waterproofed with an outer sheath of reflectix and zip ties from lowe's and have had no issues down to 18 degrees with lower wind chills (installed on the fresh water hose, pressure regulator, and water in line filter from spigot post to camper and also wrapped the spigot for good measure). Our rig is 4 season/ belly insulation and sheet metal bottom no skirt. **Invest in the two way hose splitter off the spigot, add quick disconnects, then a "Freeze Miser" or similar product** It will automatically open and drip before it reaches freezing temps to prevent the water line from freezing. Easy to unbox, easy to install (like a regular hose), Only After testing for leaking or defects plug into appropriate safe and rated outlet. Not super heavy (25ft). Keeps a semi coiled memory after unboxing but seems to relax and become somewhat flexible. Nice color. Looks quality at first glance (even though several reviewers like us have had defective units).
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Reviewed in the United States on December 5, 2024

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