REC Active BMS | Off Grid and Marine Energy

REC Active BMS

12V Active balancing BMS

108 Topics 2 Followers

BMS battery energy storage Battery
9/18/25, 5:07 AM • Natalia 9/18/25, 5:07 AM

1

1
Posts

14
Views

Natalia
9/18/25, 5:07 AM

The 11th World Battery & Energy Storage Industry Expo (WBE 2026) Date: September 16th-18th, ...
S

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

5

5
Posts

62
Views

S

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...
S

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

2

2
Posts

31
Views

R

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...
H

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

5

5
Posts

76
Views

B

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 ...
W

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

5

5
Posts

178
Views

J

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...
o

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

2

2
Posts

31
Views

R

Rick
6/12/25, 10:23 AM

@Tine Andrejasic Tine, are you able to include this variable in the next firmware update? ...
M

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

2

2
Posts

31
Views

T

Trond
6/3/25, 3:51 AM

Yes, it is indeed to high. Try setting the Charged Voltage to 13.9V.
t

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

3

3
Posts

39
Views

S

Stefano
5/6/25, 3:47 PM

If you have a Cerbo gx, the Venus OS large and associated node-red functionality repo...
t

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

3

3
Posts

54
Views

Bill C.
4/28/25, 3:46 PM

I used Rick's cheat sheet along with recommendations from Ben.
B

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

32

32
Posts

2k
Views

R

Rick
4/25/25, 7:37 AM

In a marine environment anything is possible with the humid salt laden air. I would remove ...
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

2

2
Posts

40
Views

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

30

30
Posts

233
Views

B

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

26

26
Posts

350
Views

o

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

53

53
Posts

652
Views

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

27

27
Posts

232
Views

R

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

7

7
Posts

115
Views

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

4

4
Posts

1.5k
Views

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
Posts

124
Views

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

192
Views

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

118
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

25
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
Posts

59
Views

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

44
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

79
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

149
Views

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

106
Views

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

70
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

125
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

124
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

205
Views

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
Posts

706
Views

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

127
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
Posts

181
Views

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

94
Views

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

2

2
Posts

78
Views

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

3

3
Posts

96
Views

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

6

6
Posts

151
Views

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

1

1
Posts

71
Views

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

2

2
Posts

123
Views

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

4

4
Posts

157
Views

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...

1 / 3
2
3

Latest topics

Battery

Natalia 9/18/25, 9:07 AM
REC Active BMS »
REC ABMS - integration with heltec 4s Active Balancer

Stefano 8/26/25, 9:17 PM 1
REC Active BMS »
WS500 Field Stuck High

Hans 8/10/25, 11:53 PM 4
WS500 Tips, Tricks and support »
Two (related) issues after updating to 2.9.6 firmware

Hans 7/31/25, 4:25 PM 4
REC Active BMS »
Unable to install WiFi Module SW 1.6.3

Jakub 7/6/25, 1:49 AM 3
REC-BMS Programming and Configuration Questions »

Latest posts

M

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

Latest: Matt 9/20/25, 7:02 PM

Installation and Configuration
Battery

Latest: Natalia 9/18/25, 9:07 AM

REC Active BMS
S

ABMS lilliputian switch

Latest: Stefano 9/8/25, 1:32 PM

REC Active BMS
S

Troubleshooting Unstable ABMS-WiFi Connectivity on Boat

Latest: Stefano 9/8/25, 1:15 PM

REC BMS Tips and Tricks
R

REC ABMS - integration with heltec 4s Active Balancer

Latest: Rick 8/27/25, 1:01 AM

REC Active BMS

Forum statistics

Page views (24h):: 87

Page views (30d):: 2,659

Topics:: 395

Posts:: 2,282

Members:: 1,078

Newest members

n

not_that_guy

10/21/25, 1:42 AM United States
E

Elijah

10/1/25, 9:55 PM United States
A

Afton

9/22/25, 7:09 PM United States
R

Rick

9/21/25, 2:20 PM Canada
B

Bill

9/16/25, 2:33 PM United States

Most liked authors

R

Richard
59
R

Rick
36
T

Trond
15
Bill C.
12
B

Ben
9