REC Active BMS

12V Active balancing BMS

101 Topics 2 Followers

t

abms terminology and interactions
4/10/25, 12:13 PM • tom 4/11/25, 11:08 AM

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2
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21
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R

Rick
4/11/25, 11:08 AM

Several years ago I started on someting for the older BMS and asked for some feedback on it but d...
t

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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19
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R

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 ...
t

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...
t

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

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26
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312
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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...
T

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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567
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R

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...
o

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

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27
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202
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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...
R

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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107
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R

Rick
3/9/25, 11:13 PM

Great! Thanks for the feedback
P

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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S

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
N

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

9

9
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108
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R

Rick
2/1/25, 2:15 PM

That would be a great idea. Very nice HMI.
W

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

8

8
Posts

161
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o

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...
S

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

3

3
Posts

91
Views

o

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

1

1
Posts

24
Views

J

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

3

3
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49
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M

Matt
1/7/25, 1:08 PM

Great, that makes sense. Thanks
L

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

1

1
Posts

38
Views

L

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...
N

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

5

5
Posts

56
Views

N

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...
J

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

10

10
Posts

138
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S

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 ...
M

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

6

6
Posts

98
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R

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...
W

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

3

3
Posts

66
Views

R

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...
J

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

3

3
Posts

99
Views

R

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...
W

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

4

4
Posts

99
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...
T

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

6

6
Posts

160
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R

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

31

31
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646
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t

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 ...
E

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

6

6
Posts

115
Views

E

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

8

8
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169
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B

Ben
4/19/24, 6:57 AM

@Christopher , The max charge, float setting en recharge settings is just one example to get the...
t

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

4

4
Posts

82
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R

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...
S

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

70
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S

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...
C

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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86
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C

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...
E

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
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140
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E

Edward
4/8/24, 12:01 AM

@Rick Thanks for the notice. @tine Thanks for the quick turnaround. I have downloaded and inst...
E

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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63
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E

Edward
3/26/24, 4:47 PM

In my continuing regression testing of an existing two-contactor system (Charge Bus and Load Bus)...
E

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

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2
Posts

112
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R

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...
E

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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4
Posts

135
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E

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...
a

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

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3
Posts

111
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a

andrew
1/25/24, 8:41 AM

thank you
R

How to manage state of charge while on shore power
6/28/22, 5:24 PM • Rich 1/22/24, 9:46 PM

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13
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1.3k
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R

Richard
1/22/24, 9:46 PM

I've created a Node-Red flow that solves this problem perfectly. It has a dashboard interfa...
R

Split Charge/Load busses setup
12/31/23, 4:25 PM • Ronald 1/4/24, 11:02 AM

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12
Posts

227
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R

Ronald
1/4/24, 11:02 AM

I wonder if there is an issue with the module 2 precharge unit. The 6 pin descriptions are ...
J

REC ABMS with split bus firmware - how to specify different discharge and charge temps?
12/26/23, 12:31 PM • John 1/3/24, 5:27 AM

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6
Posts

107
Views

t

tine
1/3/24, 5:27 AM

Charge current is only set to 0 A when the temperature goes under the Under-temperature for charg...
G

BMS Contactor Switch Contactor/Switch Options
12/12/23, 11:41 AM • Geoff 12/26/23, 5:39 PM

6

6
Posts

112
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Geoff
12/26/23, 5:39 PM

John,I considered the Blue Sea swtich - it's a good switch (I have one and like it), but for my L...
E

Correct Firmware to use for Two Contactor Configuration
12/5/23, 3:54 PM • Edward 12/7/23, 4:03 PM

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2
Posts

129
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R

Rick
12/7/23, 4:03 PM

In the 2.9.2 firmware update there is a file called bms_1A_Victron_v2_92_2_tasks.bin that should ...
E

Downgrading firmware
12/5/23, 3:57 PM • Edward 12/7/23, 3:58 PM

4

4
Posts

84
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Rick
12/7/23, 3:58 PM

Yes, I have downgraded several times while testing with the PC software and RS485 cable, but have...
G

Pin Connections
11/22/23, 1:07 PM • Geoff 11/26/23, 6:09 PM

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5
Posts

82
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Geoff
11/26/23, 6:09 PM

Rick,Thanks for the update - things make more senses now!One question - on the updated diagram sh...
R

REC ACTIVE BMS CAN-BUS Compatibility
11/15/23, 2:28 PM • Raymond 11/15/23, 2:28 PM

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1
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72
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Raymond
11/15/23, 2:28 PM

I am installing a Rec Active BMS and I am concerned about the Can-Bus wiring or compatibity with ...

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REC Active BMS

abms terminology and interactions 4/10/25, 12:13 PM • tom 4/11/25, 11:08 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

How to manage state of charge while on shore power 6/28/22, 5:24 PM • Rich 1/22/24, 9:46 PM

Split Charge/Load busses setup 12/31/23, 4:25 PM • Ronald 1/4/24, 11:02 AM

REC ABMS with split bus firmware - how to specify different discharge and charge temps? 12/26/23, 12:31 PM • John 1/3/24, 5:27 AM

BMS Contactor Switch Contactor/Switch Options 12/12/23, 11:41 AM • Geoff 12/26/23, 5:39 PM

Correct Firmware to use for Two Contactor Configuration 12/5/23, 3:54 PM • Edward 12/7/23, 4:03 PM

Downgrading firmware 12/5/23, 3:57 PM • Edward 12/7/23, 3:58 PM

Pin Connections 11/22/23, 1:07 PM • Geoff 11/26/23, 6:09 PM

REC ACTIVE BMS CAN-BUS Compatibility 11/15/23, 2:28 PM • Raymond 11/15/23, 2:28 PM

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Latest topics

Master - Slave comunnication

abms terminology and interactions

WS500-PRO / REC Active BMS - "OUTPUT" not displaying on Victron Cerbo GX

BMS does not switch to float

rec abms can access, but says memory card is not working so there is no loggin

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Master - Slave comunnication

Zeus as REC Active follower on 500k bms can but no cerbo widget.

abms terminology and interactions

Zeus as REC Active follower on 500k bms can but no cerbo widget.

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abms terminology and interactions
4/10/25, 12:13 PM • tom 4/11/25, 11:08 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

How to manage state of charge while on shore power
6/28/22, 5:24 PM • Rich 1/22/24, 9:46 PM

Split Charge/Load busses setup
12/31/23, 4:25 PM • Ronald 1/4/24, 11:02 AM

REC ABMS with split bus firmware - how to specify different discharge and charge temps?
12/26/23, 12:31 PM • John 1/3/24, 5:27 AM

BMS Contactor Switch Contactor/Switch Options
12/12/23, 11:41 AM • Geoff 12/26/23, 5:39 PM

Correct Firmware to use for Two Contactor Configuration
12/5/23, 3:54 PM • Edward 12/7/23, 4:03 PM

Downgrading firmware
12/5/23, 3:57 PM • Edward 12/7/23, 3:58 PM

Pin Connections
11/22/23, 1:07 PM • Geoff 11/26/23, 6:09 PM

REC ACTIVE BMS CAN-BUS Compatibility
11/15/23, 2:28 PM • Raymond 11/15/23, 2:28 PM