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REC Q Series BMS
REC Q Series BMS
Q Series for large, high voltage and redundant systems
alternator, solar charging system (1)
REC Q BMS (2)
Victron (1)
2Q (2)
REC (2)
BMS (2)
CAN (1)
battery (1)
energy storage (1)
balancing (1)
Cell Voltage, BMS, (1)
settings (1)
Master (1)
33
Topics
3
Followers
F
BMS does not switch to float
4/9/25, 12:23 PM
•
Franz
4/22/25, 12:29 PM
5
5
Posts
46
Views
F
Franz
4/22/25, 12:29 PM
Hi everyone,I've been monitoring this behavior and noticed the following:The BMS only switches to...
A
EEprom memory corruption - shutdown
3/16/25, 3:29 PM
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Aaron
3/18/25, 4:13 PM
5
5
Posts
43
Views
t
tine
3/18/25, 4:13 PM
What is the BMS Serial and SW version? Send me setting please.
A
Q series BMS Error 15
1/18/25, 8:29 PM
•
Anthoney
2/20/25, 9:27 AM
11
11
Posts
95
Views
R
Rick
2/20/25, 9:27 AM
Good news! This may help to explain why the BMS was not pulling back the charger output on ...
n
Setting Date and Time
1/9/23, 11:53 AM
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nworker
1/4/25, 8:36 PM
4
4
Posts
154
Views
Bill C.
1/4/25, 8:36 PM
@nworker becasue there is no real time clock (RTC) on the Q Series, my graphs simply show an incr...
A
2Q
REC
Master
REC Master BMS/2Q Max System Size
10/8/24, 10:27 PM
•
Austin
10/16/24, 1:08 PM
2
2
Posts
110
Views
R
Rick
10/16/24, 1:08 PM
Here is some feedback from REC engineering that may address your challenge while giving you a lev...
System Error #3
8/23/24, 10:02 AM
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Robert
8/27/24, 11:55 AM
6
6
Posts
57
Views
Robert
8/27/24, 11:55 AM
@Rick Thanks for your recomendations, that works. Take a look at my logging is this fairly normal...
J
2Q firmware update (what happens to settings)
8/6/24, 11:13 AM
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Jeffrey
8/9/24, 6:21 PM
4
4
Posts
81
Views
J
Jeffrey
8/9/24, 6:21 PM
FYI -- the CHRG setting (CAN protocol) gets reset on firmware update and that was the reason I lo...
REC Q BMS
settings
Setting REC Discharge and Charge Current Limits. Need help.
6/12/24, 5:45 PM
•
Bill C.
7/22/24, 11:01 AM
4
4
Posts
176
Views
Bill C.
7/22/24, 11:01 AM
30 days of data. Does anyone have an idea why my CCL and CVL values are moving around when chargi...
REC-BMS logging basics help
5/17/24, 10:41 PM
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Bill C.
5/17/24, 10:41 PM
1
1
Posts
74
Views
Bill C.
5/17/24, 10:41 PM
I was hoping that someone could explain how the REC-BMS logging screen works on the WiFi module. ...
A
Warning: Internal Failure
5/16/22, 10:35 AM
•
Adam
5/14/24, 3:06 AM
37
37
Posts
1.9k
Views
t
tine
5/14/24, 3:06 AM
Rick and other users gave me thinking about how to change this sound buzzer alarm not to drive th...
e
Silencing the audible alarm
11/24/22, 8:23 AM
•
edclarke
4/17/24, 4:44 PM
17
17
Posts
425
Views
R
Rick
4/17/24, 4:44 PM
We're happy to help if we can. Please send your serial # to support@ogm-energy.com and we w...
REC Q BMS
balancing
? re seeing when the balancing is active using the wifi home page
12/21/23, 3:20 PM
•
Bill C.
12/21/23, 3:20 PM
1
1
Posts
44
Views
Bill C.
12/21/23, 3:20 PM
Hello All, I have just fired up my REC Q BMS and am accessing it via the WiFi module. I am...
E
Seeing a "PROBLEM WITH SD CARD, LOGGING IS DISABLED" message
10/9/23, 5:04 PM
•
Eran
11/25/23, 6:46 PM
7
7
Posts
171
Views
E
Eran
11/25/23, 6:46 PM
Thank you, I apprecaite that! Good luck!
J
Victron
2Q
REC
REC 2Q BMS and Victron
8/22/23, 10:44 AM
•
Jeremy
8/22/23, 10:44 AM
1
1
Posts
166
Views
J
Jeremy
8/22/23, 10:44 AM
This is for anyone else who may have trouble getting the new 2Q to communicate with Victron. ...
T
REC Q Series BMS + WS500 + Victron + charge/discharge control
5/3/23, 9:16 PM
•
Thomas
6/11/23, 11:53 AM
6
6
Posts
171
Views
R
Rick
6/11/23, 11:53 AM
The Cerbo does not provide battery settings functionality for the BMS. You can set up alarm...
S
REC BMS Voltage Setting for clean 100% SOC charge end.
5/4/23, 4:28 AM
•
Stefan
5/5/23, 6:09 AM
4
4
Posts
177
Views
S
Stefan
5/5/23, 6:09 AM
It looks like in my case, the max pack voltage went over the calculated value by about 1 Volt at ...
S
REC Master 9M - Startup Pieps - CAN Problem
9/26/22, 12:44 AM
•
Stefan
4/25/23, 12:26 PM
6
6
Posts
374
Views
R
Rick
4/25/23, 12:26 PM
This is great information. Thanks for sharing!
R
Rec BMS charge and discharge disable
6/24/22, 9:48 AM
•
Robin
3/16/23, 11:26 PM
22
22
Posts
2.6k
Views
B
Ben
3/16/23, 11:26 PM
Quote from bonsys on March 16, 2023, 12:19 pm I have a general observation to share. After ins...
P
Shunt reading 2.5x lower than actual current
1/22/23, 2:49 PM
•
Peter
1/22/23, 2:53 PM
2
2
Posts
166
Views
P
Peter
1/22/23, 2:53 PM
here is a screenshot from the VRM console showing the difference in the current readings.
s
Minimal connections to safely communicate w/BMS
1/9/23, 8:12 AM
•
skrap
1/14/23, 4:19 AM
3
3
Posts
206
Views
s
skrap
1/14/23, 4:19 AM
Rick, I have the official REC cable. Will the BMS power on and be responsive if the only conn...
f
Can REC Q BMS communicate to Victron Lynx Distributor?
5/18/21, 8:40 PM
•
fpat99
11/29/22, 12:53 PM
4
4
Posts
1.4k
Views
J
Jon
11/29/22, 12:53 PM
The Lynx Distributor uses an I2C bus to relay the 4 fuses and positive busbar state. Up to 4 dist...
J
Maximum Cell Float Voltage Coefficient
10/22/22, 8:26 AM
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John
10/23/22, 4:04 AM
2
2
Posts
259
Views
R
Richard
10/23/22, 4:04 AM
The Q series has firmware that is keyed to the serial number, so you just need to send in your re...
n
Charging Questions SunnyIsland 5048U
10/19/22, 2:30 PM
•
nworker
10/19/22, 2:30 PM
1
1
Posts
237
Views
n
nworker
10/19/22, 2:30 PM
With the WiFi module (1.6) and the REC-BMS (2.8) configured, I have a couple of questions My u...
R
REC BMS supported inverters
6/23/22, 6:17 AM
•
Richard
10/17/22, 3:59 PM
8
8
Posts
1.2k
Views
R
Richard
10/17/22, 3:59 PM
Here is the DB9 pinout from the BMS. Just grab a DB9 connector, a 120 ohm resistor and a phone p...
D
REC Q BMS firmware
4/4/22, 3:03 PM
•
David
4/6/22, 1:43 PM
3
3
Posts
1.5k
Views
R
Richard
4/6/22, 1:43 PM
Hi David, the first one is just the software release info. The latest firmware revision is ind...
D
Connecting REC Q BMS to Sunny Island 6048-US Inverter
3/7/22, 6:54 AM
•
David
4/2/22, 7:37 AM
10
10
Posts
6.2k
Views
D
David
4/2/22, 7:37 AM
I know what to do now and that makes sense. I will rewire it like you suggested. Thanks!
M
Wrong voltage measurement on most positive cell
1/21/22, 1:34 AM
•
Marius
1/21/22, 8:47 AM
5
5
Posts
854
Views
R
Richard
1/21/22, 8:47 AM
Just realized, the Active BMS has fuses that are user replaceable but the Q series does not.
e
REC Q Series vs. Victron specific BMS
11/8/21, 8:10 AM
•
edclarke
1/17/22, 7:23 AM
7
7
Posts
1.6k
Views
R
Richard
1/17/22, 7:23 AM
On the network diagram please note that Terminators are NOT required on the VE.bus network. Up...
A
Day 2, BMS Temperature Faults
12/3/21, 10:20 AM
•
Adam
12/3/21, 11:21 AM
5
5
Posts
831
Views
A
Adam
12/3/21, 11:21 AM
Quote from Rick-admin on December 3, 2021, 3:56 pm Give it a few days to try to get itself bal...
b
Can Bus connection to SI-6048
11/16/21, 1:24 PM
•
bob
11/25/21, 12:39 AM
10
10
Posts
1.9k
Views
R
Richard
11/25/21, 12:39 AM
Bob, I was able to replicate your error but only by using small letters then pressing \"Enter\...
N
REC Q incorrect (high) Voltage sense on most positive cell (Cell 8)
4/12/21, 9:58 AM
•
Nathaniel
9/28/21, 7:17 AM
7
7
Posts
1.5k
Views
R
Richard
9/28/21, 7:17 AM
Just a note to all. The resistor test battery simulator described above will work with the Q Ser...
R
How does the REC BMS interface with a Sunny Inverter?
1/24/21, 7:25 AM
•
Richard
1/24/21, 7:28 AM
2
2
Posts
2.1k
Views
R
Richard
1/24/21, 7:28 AM
Basically the BMS passes several parameters back to the Inverter via CANBus which allow the 2 uni...
R
REC Q BMS Startup problems
10/21/20, 8:28 AM
•
Richard
10/21/20, 8:39 AM
4
4
Posts
2k
Views
R
Richard
10/21/20, 8:39 AM
Hi, Good news on progress! Tks for the feedback. I have attached an overall screen-shot of...
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