REC BMS Tips and Tricks

Look here for general answers and clarifications to setting up your REC BMS

20 Topics 1 Followers

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REC WiFi module locked up, how to fix
5/20/25, 7:00 AM • Rick 5/20/25, 7:19 PM

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2
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30
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Robert
5/20/25, 7:19 PM

Thank you Rick. That did the trick! Bob
R

Float settings with LFP batteries and REC BMS
5/19/25, 9:00 AM • Rick 5/19/25, 9:00 AM

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1
Posts

32
Views

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Rick
5/19/25, 9:00 AM

In recent years it has been confirmed that you generally do not want to use a float charge when...
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How to use the new Mate N Lok connectors
5/15/25, 8:01 AM • Rick 5/15/25, 8:01 AM

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1
Posts

21
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Rick
5/15/25, 8:01 AM

The new series of REC BMS products now incorporate the easy to use Mate N Lok connectors. To ins...
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ABMS REC WIFI Troubleshooting Unstable ABMS-WiFi Connectivity on Boat
4/27/25, 12:47 PM • Stefano 4/27/25, 7:01 PM

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6
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53
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Rick
4/27/25, 7:01 PM

@Stefano Email with 1.6.2 F/W sent. Also check for any nearby AC power lines. ...
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Identification of temperature Sensors DS18B20
4/15/25, 10:50 AM • Stefano 4/15/25, 4:44 PM

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30
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Rick
4/15/25, 4:44 PM

Hey Stephano, The way 1Wire networks work is they use the network ID number as the reference so ...
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New REC BMS and Victron Cerbo DVCC integration Guide
1/14/25, 2:29 PM • Rick 4/15/25, 4:20 AM

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7
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271
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Bill C.
4/15/25, 4:20 AM

Hello All, I am just seeing this thread. Is there support for the REC Q BMS and the REC Master? ...
Starlink REC WIFI Accessing REC WiFi module on my boat with Starlink
1/8/25, 2:25 PM • Bill C. 1/31/25, 11:09 PM

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2
Posts

32
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o

o-firstname
1/31/25, 11:09 PM

@Bill Caswell you could use a service called tailscale to create a VPN into your network. This is...
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BSLRD test
7/12/24, 3:53 PM • Gary 1/10/25, 3:53 PM

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3
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48
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panagiotis
1/10/25, 3:53 PM

Did you connect it?
NEWBIE question- Need help getting REC ABMS to work with Blue Sea ML-RBS contactor
10/15/23, 2:51 AM • Bill C. 12/5/24, 2:54 AM

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12
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568
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Andrea
12/5/24, 2:54 AM

@Bill C. First of all, thank you for sharing your project!I have the REC ABMS 4S as yours and I w...
A

REC Master 9M no connection with Wifi or PC-Softw
6/27/24, 9:48 AM • An 7/3/24, 12:25 PM

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7
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108
Views

A

An
7/3/24, 12:25 PM

Hello, it now worked normally. It was the wrong firmware on the slaves. I flashed it with slave ...
R

REC BMS How to configure your current sensor
7/5/22, 1:20 PM • Richard 2/26/24, 11:01 PM

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1.7k
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Bill C.
2/26/24, 11:01 PM

HI Rick, I will try those values and see what I get.
When does 100% SOC get set?
11/1/23, 9:40 PM • Bill C. 11/2/23, 7:45 AM

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4
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176
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Rick
11/2/23, 7:45 AM

From page 25 of the manual. and dont forget, it will take a few cycles to zero in on an accurrate...
Tips for mounting the REC-ABMS power switch
10/27/23, 4:01 AM • Bill C. 10/27/23, 4:01 AM

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1
Posts

74
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Bill C.
10/27/23, 4:01 AM

I am looking for suggestions on how to mount the power switch in a small box without removing the...
M

Has anyone tried the BlueSea 7718 Contactor?
7/23/23, 10:28 PM • Matt 8/5/23, 8:13 AM

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2
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58
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Rick
8/5/23, 8:13 AM

Matt, the Tyco EV200 series relay incorporates an economizer circuit which allows the relay to pu...
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How to read error log from REC Master BMS
6/2/23, 12:08 PM • Rick 6/7/23, 9:06 PM

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2
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163
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Scott
6/7/23, 9:06 PM

From said customer: Actually, for a Master - Slave configuration "ERRL?" is required to retrieve...
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REC BMS additioanl temperature Sensors DS18B20
2/15/23, 8:37 AM • Richard 2/15/23, 8:37 AM

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1
Posts

204
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Richard
2/15/23, 8:37 AM

The sensors are smart devices and the 3 wires in the sheath just get paralleled together to the s...
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New Video How to configure your REC WiFi module to be an STA on your home network
2/13/22, 1:34 PM • Richard 12/8/22, 3:05 PM

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4
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945
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edclarke
12/8/22, 3:05 PM

I didn’t explain the scenario very well. The BMS and WiFi are wired to the battery, and almost al...
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How to Replace the SD card on your REC Wi-Fi module
3/23/22, 12:14 PM • Richard 3/23/22, 12:14 PM

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1
Posts

1.5k
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Richard
3/23/22, 12:14 PM

If you want to upgrade or replace your SD card on your REC BMS Wi-Fi module it is quite easy but ...
A

Is there a difference between REC and REC-Victron devices?
12/5/21, 11:05 AM • Adam 12/6/21, 2:48 AM

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2
Posts

1k
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Richard
12/6/21, 2:48 AM

REC interfaces with several inverters for the ESS market which include the Victron but with Victr...
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REC WiFi Module IP Address
12/4/21, 7:38 AM • Adam 12/5/21, 12:10 PM

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4
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998
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Adam
12/5/21, 12:10 PM

I\'m going to assume this is because my module has firmware v1.1 and that video shows v1.2.

REC BMS Tips and Tricks

REC WiFi module locked up, how to fix 5/20/25, 7:00 AM • Rick 5/20/25, 7:19 PM

Float settings with LFP batteries and REC BMS 5/19/25, 9:00 AM • Rick 5/19/25, 9:00 AM

How to use the new Mate N Lok connectors 5/15/25, 8:01 AM • Rick 5/15/25, 8:01 AM

ABMS REC WIFI Troubleshooting Unstable ABMS-WiFi Connectivity on Boat 4/27/25, 12:47 PM • Stefano 4/27/25, 7:01 PM

Identification of temperature Sensors DS18B20 4/15/25, 10:50 AM • Stefano 4/15/25, 4:44 PM

New REC BMS and Victron Cerbo DVCC integration Guide 1/14/25, 2:29 PM • Rick 4/15/25, 4:20 AM

Starlink REC WIFI Accessing REC WiFi module on my boat with Starlink 1/8/25, 2:25 PM • Bill C. 1/31/25, 11:09 PM

BSLRD test 7/12/24, 3:53 PM • Gary 1/10/25, 3:53 PM

NEWBIE question- Need help getting REC ABMS to work with Blue Sea ML-RBS contactor 10/15/23, 2:51 AM • Bill C. 12/5/24, 2:54 AM

REC Master 9M no connection with Wifi or PC-Softw 6/27/24, 9:48 AM • An 7/3/24, 12:25 PM

REC BMS How to configure your current sensor 7/5/22, 1:20 PM • Richard 2/26/24, 11:01 PM

When does 100% SOC get set? 11/1/23, 9:40 PM • Bill C. 11/2/23, 7:45 AM

Tips for mounting the REC-ABMS power switch 10/27/23, 4:01 AM • Bill C. 10/27/23, 4:01 AM

Has anyone tried the BlueSea 7718 Contactor? 7/23/23, 10:28 PM • Matt 8/5/23, 8:13 AM

How to read error log from REC Master BMS 6/2/23, 12:08 PM • Rick 6/7/23, 9:06 PM

REC BMS additioanl temperature Sensors DS18B20 2/15/23, 8:37 AM • Richard 2/15/23, 8:37 AM

New Video How to configure your REC WiFi module to be an STA on your home network 2/13/22, 1:34 PM • Richard 12/8/22, 3:05 PM

How to Replace the SD card on your REC Wi-Fi module 3/23/22, 12:14 PM • Richard 3/23/22, 12:14 PM

Is there a difference between REC and REC-Victron devices? 12/5/21, 11:05 AM • Adam 12/6/21, 2:48 AM

REC WiFi Module IP Address 12/4/21, 7:38 AM • Adam 12/5/21, 12:10 PM

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Latest topics

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REC WiFi module locked up, how to fix
5/20/25, 7:00 AM • Rick 5/20/25, 7:19 PM

Float settings with LFP batteries and REC BMS
5/19/25, 9:00 AM • Rick 5/19/25, 9:00 AM

How to use the new Mate N Lok connectors
5/15/25, 8:01 AM • Rick 5/15/25, 8:01 AM

ABMS REC WIFI Troubleshooting Unstable ABMS-WiFi Connectivity on Boat
4/27/25, 12:47 PM • Stefano 4/27/25, 7:01 PM

Identification of temperature Sensors DS18B20
4/15/25, 10:50 AM • Stefano 4/15/25, 4:44 PM

New REC BMS and Victron Cerbo DVCC integration Guide
1/14/25, 2:29 PM • Rick 4/15/25, 4:20 AM

Starlink REC WIFI Accessing REC WiFi module on my boat with Starlink
1/8/25, 2:25 PM • Bill C. 1/31/25, 11:09 PM

BSLRD test
7/12/24, 3:53 PM • Gary 1/10/25, 3:53 PM

NEWBIE question- Need help getting REC ABMS to work with Blue Sea ML-RBS contactor
10/15/23, 2:51 AM • Bill C. 12/5/24, 2:54 AM

REC Master 9M no connection with Wifi or PC-Softw
6/27/24, 9:48 AM • An 7/3/24, 12:25 PM

REC BMS How to configure your current sensor
7/5/22, 1:20 PM • Richard 2/26/24, 11:01 PM

When does 100% SOC get set?
11/1/23, 9:40 PM • Bill C. 11/2/23, 7:45 AM

Tips for mounting the REC-ABMS power switch
10/27/23, 4:01 AM • Bill C. 10/27/23, 4:01 AM

Has anyone tried the BlueSea 7718 Contactor?
7/23/23, 10:28 PM • Matt 8/5/23, 8:13 AM

How to read error log from REC Master BMS
6/2/23, 12:08 PM • Rick 6/7/23, 9:06 PM

REC BMS additioanl temperature Sensors DS18B20
2/15/23, 8:37 AM • Richard 2/15/23, 8:37 AM

New Video How to configure your REC WiFi module to be an STA on your home network
2/13/22, 1:34 PM • Richard 12/8/22, 3:05 PM

How to Replace the SD card on your REC Wi-Fi module
3/23/22, 12:14 PM • Richard 3/23/22, 12:14 PM

Is there a difference between REC and REC-Victron devices?
12/5/21, 11:05 AM • Adam 12/6/21, 2:48 AM

REC WiFi Module IP Address
12/4/21, 7:38 AM • Adam 12/5/21, 12:10 PM