REC Active BMS

12V Active balancing BMS

107 Topics 2 Followers

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ABMS lilliputian switch
4/23/25, 1:58 PM • Stefano 9/8/25, 9:32 AM

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5
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54
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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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18
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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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170
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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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29
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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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29
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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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34
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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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3
Posts

53
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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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2
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35
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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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230
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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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344
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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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53
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633
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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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224
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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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7
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115
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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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4
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1.5k
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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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9
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116
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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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8
Posts

188
Views

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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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109
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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 (...
J

Precharge with Tyco relays
1/15/25, 1:19 PM • Johan 1/15/25, 1:19 PM

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1
Posts

25
Views

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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...
M

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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3
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57
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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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1
Posts

44
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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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5
Posts

79
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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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10
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147
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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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6
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104
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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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3
Posts

70
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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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3
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123
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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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4
Posts

113
Views

W

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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Cell Voltage, BMS, Error in Cell Voltage Reading and Sudden Voltage Drop
5/12/24, 6:05 PM • Trevor 5/31/24, 1:19 PM

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6
Posts

199
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Rick
5/31/24, 1:19 PM

Ok Trevor, we can do that for you. Please contact us at support@ogm-energy.com and we'll ge...
D

Erratic reading from current shunt
4/15/23, 2:26 PM • Darryl 5/20/24, 3:07 AM

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31
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697
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tine
5/20/24, 3:07 AM

Resistors are 330 Ohms. Maybe there is a bad connection from the cable to the crimp or fronm the ...
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BMS seems not doing the job after upgrade
5/3/24, 10:25 PM • Edward 5/11/24, 7:53 PM

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6
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127
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Edward
5/11/24, 7:53 PM

If 183Ah use, SOC should be only ±85%??? 100-(183÷1200x100%)
C

REC Active BMS does not resume charging ?
4/16/24, 6:43 AM • Christopher 4/19/24, 6:57 AM

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8
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177
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Ben
4/19/24, 6:57 AM

@Christopher , The max charge, float setting en recharge settings is just one example to get the...
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BMS 12p4s setup
4/17/24, 12:04 AM • tom 4/17/24, 12:10 PM

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4
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93
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Rick
4/17/24, 12:10 PM

You may want to consider adding one of these to allow your DD alt. help charge and top off/balanc...
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difficulty updating the BMS to v2.92.1 using the WiFi module.
4/12/24, 7:40 PM • Stan 4/17/24, 12:06 AM

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2
Posts

78
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Stan
4/17/24, 12:06 AM

It turns out that I was powering the WiFi module from the switched side of the contactor, and not...
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How to increase the maximum discharge current
4/12/24, 11:05 AM • Christopher 4/12/24, 12:16 PM

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3
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94
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Christopher
4/12/24, 12:16 PM

Yes, I am not your client, I am REC d.o.o. Slovenia, but there I often don't get an answer.I read...
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WiFi FW Temperature error Error in WiFi FW 1.62-12
3/12/24, 4:51 PM • Edward 4/8/24, 12:01 AM

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6
Posts

147
Views

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Edward
4/8/24, 12:01 AM

@Rick Thanks for the notice. @tine Thanks for the quick turnaround. I have downloaded and inst...
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Error in Firmware 2.9.2-2
3/26/24, 4:47 PM • Edward 3/26/24, 4:47 PM

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1
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70
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Edward
3/26/24, 4:47 PM

In my continuing regression testing of an existing two-contactor system (Charge Bus and Load Bus)...
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Opto Lines Driving Capability
3/13/24, 3:46 PM • Edward 3/13/24, 5:16 PM

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2
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123
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Rick
3/13/24, 5:16 PM

no, they are meant to drive something like an LED directly. If you want to drive a larger l...
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Can't remove micro SD card from WiFi Module
2/26/24, 3:26 PM • Edward 3/12/24, 4:22 PM

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155
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Edward
3/12/24, 4:22 PM

After formatting the SD card and loading the spiffs and updates files onto it, and powering up wa...
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Hibernate on REC Actice BMS
1/24/24, 9:08 AM • andrew 1/25/24, 8:41 AM

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124
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andrew
1/25/24, 8:41 AM

thank you

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ABMS lilliputian switch

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Troubleshooting Unstable ABMS-WiFi Connectivity on Boat

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REC ABMS - integration with heltec 4s Active Balancer

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REC ABMS - integration with heltec 4s Active Balancer

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Two (related) issues after updating to 2.9.6 firmware

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REC Active BMS

ABMS lilliputian switch 4/23/25, 1:58 PM • Stefano 9/8/25, 9:32 AM

REC ABMS - integration with heltec 4s Active Balancer 8/26/25, 5:17 PM • Stefano 8/26/25, 9:01 PM

Two (related) issues after updating to 2.9.6 firmware 7/31/25, 12:25 PM • Hans 8/24/25, 2:07 AM

Connecting REC wifi module to the outside world? 3/4/23, 9:08 AM • WILLIAM 8/20/25, 11:44 AM

TimeToGo additional message for Victron D-BUS 6/11/25, 3:31 PM • o-firstname 6/12/25, 10:23 AM

Victron BMV Settings 6/2/25, 5:55 PM • Michael 6/3/25, 3:51 AM

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

abms terminology and interactions 4/10/25, 12:13 PM • tom 4/28/25, 3:46 PM

REC Active BMS problems 3/19/22, 7:56 AM • BretS 4/25/25, 7:37 AM

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

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

ABMS/2Q firmware with additional CAN messages 2/6/25, 3:44 AM • tine 3/31/25, 10:12 PM

2.94 Firmware Update Issue Rec A BMS 9/13/24, 5:31 PM • Trevor 3/18/25, 10:19 PM

Bricked ABMS? 1/31/25, 10:07 PM • o-firstname 3/17/25, 4:24 AM

Unable to check unlisted settings using the WIFI module 5/19/24, 6:19 AM • Richard 3/9/25, 11:13 PM

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

Rec data to home assistant 10/10/24, 5:05 PM • Neil 2/1/25, 2:15 PM

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

ABYC E-13 requirements implementation and integration 10/4/24, 1:02 PM • Stefano 2/1/25, 11:42 AM

Precharge with Tyco relays 1/15/25, 1:19 PM • Johan 1/15/25, 1:19 PM

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

REC ABMS 2.94 download link broken? 12/22/24, 5:20 AM • Lure 12/22/24, 5:20 AM

Abms green flashing and dissappeared 12/14/24, 8:19 AM • Neil 12/16/24, 1:16 PM

Power relays 9/15/24, 2:58 AM • Johan 9/16/24, 9:40 AM

BMS 1A NEWBIE WITH AN ISSUE 9/3/24, 12:20 PM • Mark 9/6/24, 3:10 PM

Troubleshooting precharge unit. 8/12/24, 9:30 PM • W 8/13/24, 10:29 AM

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

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

Cell Voltage, BMS, Error in Cell Voltage Reading and Sudden Voltage Drop 5/12/24, 6:05 PM • Trevor 5/31/24, 1:19 PM

Erratic reading from current shunt 4/15/23, 2:26 PM • Darryl 5/20/24, 3:07 AM

BMS seems not doing the job after upgrade 5/3/24, 10:25 PM • Edward 5/11/24, 7:53 PM

REC Active BMS does not resume charging ? 4/16/24, 6:43 AM • Christopher 4/19/24, 6:57 AM

BMS 12p4s setup 4/17/24, 12:04 AM • tom 4/17/24, 12:10 PM

difficulty updating the BMS to v2.92.1 using the WiFi module. 4/12/24, 7:40 PM • Stan 4/17/24, 12:06 AM

How to increase the maximum discharge current 4/12/24, 11:05 AM • Christopher 4/12/24, 12:16 PM

WiFi FW Temperature error Error in WiFi FW 1.62-12 3/12/24, 4:51 PM • Edward 4/8/24, 12:01 AM

Error in Firmware 2.9.2-2 3/26/24, 4:47 PM • Edward 3/26/24, 4:47 PM

Opto Lines Driving Capability 3/13/24, 3:46 PM • Edward 3/13/24, 5:16 PM

Can't remove micro SD card from WiFi Module 2/26/24, 3:26 PM • Edward 3/12/24, 4:22 PM

Hibernate on REC Actice BMS 1/24/24, 9:08 AM • andrew 1/25/24, 8:41 AM

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Latest topics

REC ABMS - integration with heltec 4s Active Balancer

WS500 Field Stuck High

Two (related) issues after updating to 2.9.6 firmware

Unable to install WiFi Module SW 1.6.3

TimeToGo additional message for Victron D-BUS

Latest posts

ABMS lilliputian switch

Troubleshooting Unstable ABMS-WiFi Connectivity on Boat

REC ABMS - integration with heltec 4s Active Balancer

REC ABMS - integration with heltec 4s Active Balancer

Two (related) issues after updating to 2.9.6 firmware

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ABMS lilliputian switch
4/23/25, 1:58 PM • Stefano 9/8/25, 9:32 AM

REC ABMS - integration with heltec 4s Active Balancer
8/26/25, 5:17 PM • Stefano 8/26/25, 9:01 PM

Two (related) issues after updating to 2.9.6 firmware
7/31/25, 12:25 PM • Hans 8/24/25, 2:07 AM

Connecting REC wifi module to the outside world?
3/4/23, 9:08 AM • WILLIAM 8/20/25, 11:44 AM

TimeToGo additional message for Victron D-BUS
6/11/25, 3:31 PM • o-firstname 6/12/25, 10:23 AM

Victron BMV Settings
6/2/25, 5:55 PM • Michael 6/3/25, 3:51 AM

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

abms terminology and interactions
4/10/25, 12:13 PM • tom 4/28/25, 3:46 PM

REC Active BMS problems
3/19/22, 7:56 AM • BretS 4/25/25, 7:37 AM

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

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

ABMS/2Q firmware with additional CAN messages
2/6/25, 3:44 AM • tine 3/31/25, 10:12 PM

2.94 Firmware Update Issue Rec A BMS
9/13/24, 5:31 PM • Trevor 3/18/25, 10:19 PM

Bricked ABMS?
1/31/25, 10:07 PM • o-firstname 3/17/25, 4:24 AM

Unable to check unlisted settings using the WIFI module
5/19/24, 6:19 AM • Richard 3/9/25, 11:13 PM

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

Rec data to home assistant
10/10/24, 5:05 PM • Neil 2/1/25, 2:15 PM

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

ABYC E-13 requirements implementation and integration
10/4/24, 1:02 PM • Stefano 2/1/25, 11:42 AM

Precharge with Tyco relays
1/15/25, 1:19 PM • Johan 1/15/25, 1:19 PM

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

REC ABMS 2.94 download link broken?
12/22/24, 5:20 AM • Lure 12/22/24, 5:20 AM

Abms green flashing and dissappeared
12/14/24, 8:19 AM • Neil 12/16/24, 1:16 PM

Power relays
9/15/24, 2:58 AM • Johan 9/16/24, 9:40 AM

BMS 1A NEWBIE WITH AN ISSUE
9/3/24, 12:20 PM • Mark 9/6/24, 3:10 PM

Troubleshooting precharge unit.
8/12/24, 9:30 PM • W 8/13/24, 10:29 AM

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

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

Cell Voltage, BMS, Error in Cell Voltage Reading and Sudden Voltage Drop
5/12/24, 6:05 PM • Trevor 5/31/24, 1:19 PM

Erratic reading from current shunt
4/15/23, 2:26 PM • Darryl 5/20/24, 3:07 AM

BMS seems not doing the job after upgrade
5/3/24, 10:25 PM • Edward 5/11/24, 7:53 PM

REC Active BMS does not resume charging ?
4/16/24, 6:43 AM • Christopher 4/19/24, 6:57 AM

BMS 12p4s setup
4/17/24, 12:04 AM • tom 4/17/24, 12:10 PM

difficulty updating the BMS to v2.92.1 using the WiFi module.
4/12/24, 7:40 PM • Stan 4/17/24, 12:06 AM

How to increase the maximum discharge current
4/12/24, 11:05 AM • Christopher 4/12/24, 12:16 PM

WiFi FW Temperature error Error in WiFi FW 1.62-12
3/12/24, 4:51 PM • Edward 4/8/24, 12:01 AM

Error in Firmware 2.9.2-2
3/26/24, 4:47 PM • Edward 3/26/24, 4:47 PM

Opto Lines Driving Capability
3/13/24, 3:46 PM • Edward 3/13/24, 5:16 PM

Can't remove micro SD card from WiFi Module
2/26/24, 3:26 PM • Edward 3/12/24, 4:22 PM

Hibernate on REC Actice BMS
1/24/24, 9:08 AM • andrew 1/25/24, 8:41 AM