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REC BMS North America User Forum
REC-BMS Programming and Configuration Questions
REC-BMS Programming and Configuration Questions
Post your techincal questions here
alternator, solar charging system (1)
REC Q BMS (2)
Sunny Island (1)
Victron (1)
marine (1)
WiFi FW (1)
SMA (1)
grid export (1)
settings (1)
Master (1)
REC WIFI (1)
REC AI tech support (1)
14
Topics
1
Followers
R
REC AI tech support
New for 2026 REC BMS AI Tech support Agent is now online
1/3/26, 2:36 PM
•
Rick
1/3/26, 2:36 PM
1
1
Posts
20
Views
R
Rick
1/3/26, 2:36 PM
We have created a custom AI agent to help with REC BMS setup, troubleshooting and configuration. ...
R
Lowering REC BMS charge voltage settings to prolong battery life challenges
11/30/25, 2:08 PM
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Rick
11/30/25, 2:08 PM
1
1
Posts
72
Views
R
Rick
11/30/25, 2:08 PM
We were recently asked by a customer what the charge setting would be if he wanted to lower the v...
J
WiFi FW
REC WIFI
Unable to install WiFi Module SW 1.6.3
7/5/25, 9:49 PM
•
Jakub
7/6/25, 6:28 PM
4
4
Posts
47
Views
J
Jakub
7/6/25, 6:28 PM
Loading the files directly onto the SD card did the job - thanks.
alternator, solar charging system
REC Q BMS
Victron
What charging precedence strategy are you using with your REC-BMS-controlled-Victron-Energy-LiFePO4 marine system?
2/4/25, 2:56 PM
•
Bill C.
4/28/25, 2:28 AM
3
3
Posts
126
Views
Bill C.
4/28/25, 2:28 AM
@Richard Thanks! I am reviewing the video. Great suggestion.
REC Q BMS
settings
Master
Looking for feedback on my QBMS configuration and settings.
10/22/24, 4:51 PM
•
Bill C.
12/29/24, 3:20 AM
13
13
Posts
180
Views
Bill C.
12/29/24, 3:20 AM
Can someone explain how the passive balancing alogrithm works on the the REC Q BMS. When you reac...
P
REC BMS for 24-series LTO cells for Sunny Island
1/14/24, 2:05 PM
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PeterD
10/24/24, 1:05 PM
10
10
Posts
154
Views
P
PeterD
10/24/24, 1:05 PM
Thanks Rick. HTTP calls will work great for me.
M
Where can I buy an RS485 cable?
10/21/24, 7:00 PM
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Mike
10/21/24, 9:07 PM
3
3
Posts
47
Views
M
Mike
10/21/24, 9:07 PM
@Rick Thanks. Got it.
J
Master Slave Config PC BMS Control Software
9/29/24, 2:21 PM
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Jack
10/1/24, 12:37 AM
9
9
Posts
130
Views
J
Jack
10/1/24, 12:37 AM
Yes, it is a high-voltage system. Nevertheless, it should be possible to reach the two slaves. So...
J
Wifi module and LCD screen connected
5/12/24, 4:36 PM
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Johan
5/12/24, 6:28 PM
2
2
Posts
53
Views
R
Rick
5/12/24, 6:28 PM
Yes, the WiFi module supports both connection to the BMS as well as the older LCD screen
Sunny Island
SMA
grid export
SMA Sunny Island Grid Export
4/16/24, 7:33 PM
•
Trevor Higher Wire
5/7/24, 6:07 PM
7
7
Posts
253
Views
Trevor Higher Wire
5/7/24, 6:07 PM
Hey Fred, yes we set it to Li-bmx-ext. I erased and reflashed the update.bin file on the master a...
D
Winter Question: Toronto
10/20/23, 11:44 AM
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David
10/20/23, 11:44 AM
1
1
Posts
60
Views
D
David
10/20/23, 11:44 AM
My question has to do with the temp here (Toronto), and how to best manage my batteries: ov...
S
REC- BMS DB9 signal waveforms / +5v (pin 6) GND (pin 2) / random system shutdown w/ reboot
6/10/23, 10:19 AM
•
Scott
6/10/23, 10:19 AM
1
1
Posts
129
Views
S
Scott
6/10/23, 10:19 AM
Good Day, This implementation of RS485 appears to be unique in that +VCC / GND is required. Furt...
r
Combining two Battery Banks
11/23/21, 7:16 AM
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rickv
11/23/21, 7:45 AM
3
3
Posts
975
Views
r
rickv
11/23/21, 7:45 AM
Great! Thanks!
R
YDSC-04 Switch Control
2/8/21, 2:09 PM
•
Richard
2/9/21, 6:59 AM
2
2
Posts
1.5k
Views
R
Richard
2/9/21, 6:59 AM
Feedback from Korolev Alexey, support engineer, Yacht Devices Ltd I am int...
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200-250 Amps Charging Shown But No Shore Power or Engine/Alternator Feeding System
Latest: Jamie
1/18/26, 1:48 AM
REC Active BMS
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200-250 Amps Charging Shown But No Shore Power or Engine/Alternator Feeding System
Latest: Rick
1/18/26, 12:55 AM
REC Active BMS
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200-250 Amps Charging Shown But No Shore Power or Engine/Alternator Feeding System
Latest: Jamie
1/17/26, 11:24 PM
REC Active BMS
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CAN failures with REC ABMS
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1/17/26, 2:11 AM
WS500 User Installation and Programming Questions
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CAN failures with REC ABMS
Latest: Ben
1/17/26, 2:07 AM
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