REC Active BMS

12V Active balancing BMS

119 Topics 2 Followers

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Firmware 3.01 ML-RBS 7700 MODE 3 Autofailover via ML-RBS 7700 - ABMS Firmware 3.01 - MODE 3-Sharing with community
6/12/26, 12:11 PM • Stefano 6/23/26, 12:34 PM

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Stefano
6/23/26, 12:34 PM

Hi Gerard, for my purposes a critical error is defined as an error that causes the contactor to ...
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Please fix manual for Active BMS
5/10/26, 9:03 PM • Martin 6/8/26, 6:10 AM

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Rick
6/8/26, 6:10 AM

I will pass this back to REC head office for you. Thanks for letting us know @Tine
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Dual REC Actives
11/23/25, 5:43 PM • Geoff 5/9/26, 7:15 PM

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Rick
5/9/26, 7:15 PM

As a followup, we are introducing a new Wifi-LCD module that will support multiple BMS's. K...
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200-250 Amps Charging Shown But No Shore Power or Engine/Alternator Feeding System
1/17/26, 6:24 PM • Jamie 5/9/26, 10:44 AM

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Rick
5/9/26, 10:44 AM

yes, i recently had it happen on a boat, and I was able to troubleshoot it by wiggling wires and ...
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have I bricked my WIFI module 😭
4/23/26, 1:22 PM • radelservices 4/24/26, 9:37 AM

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Rick
4/24/26, 9:37 AM

Try fixing using the SD card direct method. Details are on this post. https://...
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Documentation for Task Settings over RS-485
3/12/26, 2:25 PM • Kevin 3/28/26, 8:53 AM

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Thomas
3/28/26, 8:53 AM

Hi, I was after the same thing and after a few emails exchanges with REC engineers below are my n...
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Protecting altenator, with ATC signal when main relay BMS switch off
3/10/26, 1:31 PM • Gerard 3/10/26, 1:31 PM

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Gerard
3/10/26, 1:31 PM

Hi all, I am installing an ARCO Zeus A225s smart alternator regulator on a sailing vessel. The b...
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Current firmware for ABMS, cerbo GX, and WS500
2/15/26, 11:59 AM • Stefano 2/15/26, 11:59 AM

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Stefano
2/15/26, 11:59 AM

Hi All, I am done with physical install of by LFP build - ABMS - 960Ah. It's time to get the con...
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Integration of ABMS with WS500 and LFP with FLA auxiliary battery
11/29/25, 1:59 PM • Stefano 11/30/25, 2:18 PM

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Rick
11/30/25, 2:18 PM

1) Yes, the REC Active BMS cable includes an end of line terminator in the DB9 housing but ...
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Assistance with Rec Active BMS not charging
11/18/25, 11:57 AM • stevehmick 11/19/25, 10:35 AM

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Rick
11/19/25, 10:35 AM

Hey Steve, to expand on what Ben is saying. Your BMS is in "Balance" mode as per the Green LED, ...
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REC-ABMS VE.CAN support and Victron VE.CAN devices
10/29/25, 10:33 AM • SmoothFroggy 10/29/25, 10:33 AM

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SmoothFroggy
10/29/25, 10:33 AM

It seems from this thread https://ogm-energy.com/community/ogm-user-forum/topic/154310/new-rec-bm...
BMS battery energy storage Battery
9/18/25, 5:07 AM • Natalia 9/18/25, 5:07 AM

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Natalia
9/18/25, 5:07 AM

The 11th World Battery & Energy Storage Industry Expo (WBE 2026) Date: September 16th-18th, ...
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ABMS lilliputian switch
4/23/25, 1:58 PM • Stefano 9/8/25, 9:32 AM

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Stefano
9/8/25, 9:32 AM

@Ben what do you mean by "The switch is NC model, keep that in mind."? The ABMS mini switch I re...
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REC ABMS - integration with heltec 4s Active Balancer
8/26/25, 5:17 PM • Stefano 8/26/25, 9:01 PM

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Rick
8/26/25, 9:01 PM

We have many users with 4P4S EVE packs running the REC Active BMS without any need to add balance...
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Two (related) issues after updating to 2.9.6 firmware
7/31/25, 12:25 PM • Hans 8/24/25, 2:07 AM

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Ben
8/24/25, 2:07 AM

@Hans to have a battery protect, as low voltage discontactor, you need to know, IF only one cell ...
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Connecting REC wifi module to the outside world?
3/4/23, 9:08 AM • WILLIAM 8/20/25, 11:44 AM

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Johan
8/20/25, 11:44 AM

Hi, I believe you have to log on to the routers ip adress ( that the wifi module are connected up...
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TimeToGo additional message for Victron D-BUS
6/11/25, 3:31 PM • o-firstname 6/12/25, 10:23 AM

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Rick
6/12/25, 10:23 AM

@Tine Andrejasic Tine, are you able to include this variable in the next firmware update? ...
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Victron BMV Settings
6/2/25, 5:55 PM • Michael 6/3/25, 3:51 AM

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Trond
6/3/25, 3:51 AM

Yes, it is indeed to high. Try setting the Charged Voltage to 13.9V.
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how to set abms to have less than a 100 percent soc
4/29/25, 10:53 PM • tom 5/6/25, 3:47 PM

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Stefano
5/6/25, 3:47 PM

If you have a Cerbo gx, the Venus OS large and associated node-red functionality repo...
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abms terminology and interactions
4/10/25, 12:13 PM • tom 4/28/25, 3:46 PM

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Bill C.
4/28/25, 3:46 PM

I used Rick's cheat sheet along with recommendations from Ben.
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REC Active BMS problems
3/19/22, 7:56 AM • BretS 4/25/25, 7:37 AM

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Rick
4/25/25, 7:37 AM

In a marine environment anything is possible with the humid salt laden air. I would remove ...
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rec abms can access, but says memory card is not working so there is no loggin
4/6/25, 5:30 PM • tom 4/7/25, 9:17 AM

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Rick
4/7/25, 9:17 AM

It is likely one of two things 1) SD card is full 2) SD card is corrupted. If you ...
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rec bms and victron multiplus 3000 12v and cerbo gx will not go into float mode
3/12/25, 3:26 PM • tom 4/2/25, 5:56 PM

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Ben
4/2/25, 5:56 PM

@tom look under devices/rec/pArameter/CVL. I think here you see 13.4 /13.3 means REC send a floa...
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ABMS/2Q firmware with additional CAN messages
2/6/25, 3:44 AM • tine 3/31/25, 10:12 PM

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o-firstname
3/31/25, 10:12 PM

@Rick When you get it setup let me know. I think I have what's needed to support the Q series but...
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2.94 Firmware Update Issue Rec A BMS
9/13/24, 5:31 PM • Trevor 3/18/25, 10:19 PM

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Richard
3/18/25, 10:19 PM

@Rick I went through the steps just as you described them. Well, I cheated just a little on...
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Bricked ABMS?
1/31/25, 10:07 PM • o-firstname 3/17/25, 4:24 AM

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Richard
3/17/25, 4:24 AM

I received the spare parts an installed the new wire loom with no effect. The new BMS worke...
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Unable to check unlisted settings using the WIFI module
5/19/24, 6:19 AM • Richard 3/9/25, 11:13 PM

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Rick
3/9/25, 11:13 PM

Great! Thanks for the feedback
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Relay switching capacity of the REC BMS
3/4/21, 5:53 PM • Patrick 2/20/25, 6:37 AM

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Sturla
2/20/25, 6:37 AM

Hi @Ben How do you wire the TBS with "control with one wire" to the REC ABMS? Br Sturla
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Rec data to home assistant
10/10/24, 5:05 PM • Neil 2/1/25, 2:15 PM

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Rick
2/1/25, 2:15 PM

That would be a great idea. Very nice HMI.
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Possibly bricked BMS after latest firmware update from Tine. bms_1A_Victron_v2_93_2_tasks_WORK.bin
6/12/24, 11:20 AM • W 2/1/25, 11:54 AM

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o-firstname
2/1/25, 11:54 AM

@W Any chance you could give a more detailed explination of what Tine had you do? Maybe co...
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ABYC E-13 requirements implementation and integration
10/4/24, 1:02 PM • Stefano 2/1/25, 11:42 AM

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o-firstname
2/1/25, 11:42 AM

@Stefano Greetings all. I am configuring and integrating a LiFePo4 stans alone 3P4S 12V (...
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Precharge with Tyco relays
1/15/25, 1:19 PM • Johan 1/15/25, 1:19 PM

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Johan
1/15/25, 1:19 PM

Hi, I need some help. Setup: REC Active BMS Tyco relays Pre charge unit I have a Victron Mul...
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Number of inverter/charger devices, will 1 still allow the cerbo to control multiples?
1/5/25, 10:09 AM • Matt 1/7/25, 1:08 PM

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Matt
1/7/25, 1:08 PM

Great, that makes sense. Thanks
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REC ABMS 2.94 download link broken?
12/22/24, 5:20 AM • Lure 12/22/24, 5:20 AM

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Lure
12/22/24, 5:20 AM

I cannot get firmware from this download link: https://rec-bms-na.com/rec-bms-releases-new-activ...
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Abms green flashing and dissappeared
12/14/24, 8:19 AM • Neil 12/16/24, 1:16 PM

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Neil
12/16/24, 1:16 PM

@Rick a couple of reboots and CAN details are all back working on the Cerbo screen, something obv...
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Power relays
9/15/24, 2:58 AM • Johan 9/16/24, 9:40 AM

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Sturla
9/16/24, 9:40 AM

Cool! It sure looks a bit more professional than my relay interface boxes that does more or less ...
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BMS 1A NEWBIE WITH AN ISSUE
9/3/24, 12:20 PM • Mark 9/6/24, 3:10 PM

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Rick
9/6/24, 3:10 PM

Hi, congratulations on your new boat! To use the Victron smart shunt, you need to have the shunt...
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Troubleshooting precharge unit.
8/12/24, 9:30 PM • W 8/13/24, 10:29 AM

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Rick
8/13/24, 10:29 AM

On the more recent version of the precharge module there is a board mounted fuse that might be th...
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ABMS BMS Errors Memory Internal memory problems detected after update to v2.92
8/3/24, 10:14 AM • Jonas 8/5/24, 11:23 AM

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Rick
8/5/24, 11:23 AM

Hey Jonas, There is currently no bulk delete option and your solution was a great idea. I am in...
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Cooked Nation's Alternator with Wakespeed/Victron/Rec Active BMS system. Need help troubleshooting BMS after replacement
6/10/24, 11:48 AM • W 6/10/24, 2:53 PM

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W
6/10/24, 2:53 PM

Well, I pulled the bms and checked all the fuses, which were all good. When I reassembled everyth...

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