All topics

H

WS500 Field Stuck High
8/10/25, 7:53 PM • Hans • Posted in WS500 Tips, Tricks and support 8/15/25, 1:07 AM

4

4
Posts

20
Views
H

Two (related) issues after updating to 2.9.6 firmware
7/31/25, 12:25 PM • Hans • Posted in REC Active BMS 8/10/25, 7:56 PM

4

4
Posts

42
Views
J

WiFi FW REC WIFI Unable to install WiFi Module SW 1.6.3
7/5/25, 9:49 PM • Jakub • Posted in REC-BMS Programming and Configuration Questions 7/6/25, 6:28 PM

4

4
Posts

35
Views
o

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

2

2
Posts

28
Views
Cerbo GX wakespeed WS-500 VRM Remote - "Remote Charging = NO" always when using WS-500 running fw 2.6.1 - but still charges ok
6/3/25, 2:04 PM • Bill C. • Posted in WS500 Tips, Tricks and support 6/13/25, 7:48 PM

4

4
Posts

49
Views
M

Victron BMV Settings
6/2/25, 5:55 PM • Michael • Posted in REC Active BMS 6/3/25, 3:51 AM

2

2
Posts

27
Views
M

Charging Rates
6/2/25, 4:30 PM • Michael • Posted in WS500 Improvement Suggestions 6/6/25, 12:55 AM

5

5
Posts

54
Views
M

9M Master 2Q Slave Relays Usage of Relays and or Optocouplers - 9M Master with 3 * REC2Q Slaves - drive 6 contactors through 6 REC Pre-Charge Unit
5/25/25, 12:47 PM • Martin • Posted in REC Master Slave Large Scale Systems 5/25/25, 12:47 PM

1

1
Posts

25
Views
R

REC WiFi module locked up, how to fix
5/20/25, 7:00 AM • Rick • Posted in REC BMS Tips and Tricks 5/20/25, 7:19 PM

2

2
Posts

30
Views
R

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

1

1
Posts

32
Views
REC Q BMS Cerbo GX wakespeed WS-500, REC-BMS, and Cerbo - DC only system, how to remove inverter icons?
5/16/25, 12:09 PM • Bill C. • Posted in WS500 User Installation and Programming Questions 5/29/25, 2:44 PM

2

2
Posts

33
Views
R

How to use the new Mate N Lok connectors
5/15/25, 8:01 AM • Rick • Posted in REC BMS Tips and Tricks 5/15/25, 8:01 AM

1

1
Posts

21
Views
REC Q BMS CAN Cerbo GX Which Alternate CAN / BMS protocol are people using? LFP batt using Cerbo GX, Wakespeed WS-500 and the REC-BMS
5/9/25, 8:46 PM • Bill C. • Posted in WS500 Tips, Tricks and support 5/16/25, 11:09 AM

4

4
Posts

42
Views
Cerbo GX wakespeed How to fix 0% WS-500 Field Drive reporting on Cerbo GX when charging?
5/9/25, 1:43 PM • Bill C. • Posted in WS500 Tips, Tricks and support 5/29/25, 2:42 PM

6

6
Posts

59
Views
T

WS500 V1.0 Field output driver failed
5/6/25, 7:17 AM • Trond • Posted in WS500 User Installation and Programming Questions 5/8/25, 12:56 PM

3

3
Posts

38
Views
R

External control cuts in and out
5/2/25, 10:24 AM • Ryan • Posted in WS500 User Installation and Programming Questions 5/6/25, 8:17 AM

2

2
Posts

41
Views
t

how to set abms to have less than a 100 percent soc
4/29/25, 10:53 PM • tom • Posted in REC Active BMS 5/6/25, 3:47 PM

3

3
Posts

31
Views
R

How to test REC 2Q BMS internal fuses
4/29/25, 9:08 AM • Rick • Posted in REC 2Q Series BMS 4/29/25, 9:08 AM

1

1
Posts

31
Views
REC Q BMS 2Q SW updates for a 9M managing 2 x Q-BMS house batt system on my sailboat?
4/28/25, 2:17 AM • Bill C. • Posted in REC Q Series BMS 4/28/25, 2:50 PM

4

4
Posts

41
Views
S

ABMS REC WIFI Troubleshooting Unstable ABMS-WiFi Connectivity on Boat
4/27/25, 12:47 PM • Stefano • Posted in REC BMS Tips and Tricks 4/27/25, 7:01 PM

6

6
Posts

53
Views
S

ABMS lilliputian switch
4/23/25, 1:58 PM • Stefano • Posted in REC Active BMS 4/27/25, 1:33 PM

4

4
Posts

49
Views
T

Zeus + Cerbo causing NMEA2000 network to crash
4/16/25, 3:59 AM • Trond • Posted in Installation and Configuration 4/16/25, 5:50 AM

2

2
Posts

77
Views
S

Identification of temperature Sensors DS18B20
4/15/25, 10:50 AM • Stefano • Posted in REC BMS Tips and Tricks 4/15/25, 4:44 PM

2

2
Posts

30
Views
J

Master - Slave comunnication
4/14/25, 4:50 PM • Jiri • Posted in REC Master Slave Large Scale Systems 4/21/25, 5:41 AM

3

3
Posts

61
Views
t

abms terminology and interactions
4/10/25, 12:13 PM • tom • Posted in REC Active BMS 4/28/25, 3:46 PM

3

3
Posts

51
Views
R

WS500-PRO / REC Active BMS - "OUTPUT" not displaying on Victron Cerbo GX
4/9/25, 1:54 PM • Ryan • Posted in WS500 User Installation and Programming Questions 6/23/25, 10:56 AM

8

8
Posts

126
Views
F

BMS does not switch to float
4/9/25, 12:23 PM • Franz • Posted in REC Q Series BMS 4/22/25, 12:29 PM

5

5
Posts

87
Views
t

rec abms can access, but says memory card is not working so there is no loggin
4/6/25, 5:30 PM • tom • Posted in REC Active BMS 4/7/25, 9:17 AM

2

2
Posts

31
Views
M

Zeus as REC Active follower on 500k bms can but no cerbo widget.
4/6/25, 4:51 PM • Matt • Posted in Installation and Configuration 8/15/25, 1:05 AM

61

61
Posts

447
Views
A

no Tacho even with forced tachomode
4/1/25, 4:27 AM • Andre • Posted in WS500 User Installation and Programming Questions 4/1/25, 8:33 AM

6

6
Posts

57
Views
A

EEprom memory corruption - shutdown
3/16/25, 3:29 PM • Aaron • Posted in REC Q Series BMS 3/18/25, 4:13 PM

5

5
Posts

69
Views
t

rec bms and victron multiplus 3000 12v and cerbo gx will not go into float mode
3/12/25, 3:26 PM • tom • Posted in REC Active BMS 4/2/25, 5:56 PM

30

30
Posts

226
Views
o

WS500-PRO & REC Active BMS config.json
3/2/25, 3:13 PM • o-firstname • Posted in WS500 User Installation and Programming Questions 3/5/25, 6:06 PM

4

4
Posts

54
Views
t

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

26

26
Posts

341
Views
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. • Posted in REC-BMS Programming and Configuration Questions 4/28/25, 2:28 AM

3

3
Posts

101
Views
o

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

27

27
Posts

220
Views
A

Q series BMS Error 15
1/18/25, 8:29 PM • Anthoney • Posted in REC Q Series BMS 2/20/25, 9:27 AM

11

11
Posts

105
Views
J

Precharge with Tyco relays
1/15/25, 1:19 PM • Johan • Posted in REC Active BMS 1/15/25, 1:19 PM

1

1
Posts

25
Views
R

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

7

7
Posts

271
Views
Starlink REC WIFI Accessing REC WiFi module on my boat with Starlink
1/8/25, 2:25 PM • Bill C. • Posted in REC BMS Tips and Tricks 1/31/25, 11:09 PM

2

2
Posts

32
Views

1 / 10
2
3
4
5
6
7
8
9
10

All topics

WS500 Field Stuck High 8/10/25, 7:53 PM • Hans • Posted in WS500 Tips, Tricks and support 8/15/25, 1:07 AM

Two (related) issues after updating to 2.9.6 firmware 7/31/25, 12:25 PM • Hans • Posted in REC Active BMS 8/10/25, 7:56 PM

WiFi FW REC WIFI Unable to install WiFi Module SW 1.6.3 7/5/25, 9:49 PM • Jakub • Posted in REC-BMS Programming and Configuration Questions 7/6/25, 6:28 PM

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

Cerbo GX wakespeed WS-500 VRM Remote - "Remote Charging = NO" always when using WS-500 running fw 2.6.1 - but still charges ok 6/3/25, 2:04 PM • Bill C. • Posted in WS500 Tips, Tricks and support 6/13/25, 7:48 PM

Victron BMV Settings 6/2/25, 5:55 PM • Michael • Posted in REC Active BMS 6/3/25, 3:51 AM

Charging Rates 6/2/25, 4:30 PM • Michael • Posted in WS500 Improvement Suggestions 6/6/25, 12:55 AM

9M Master 2Q Slave Relays Usage of Relays and or Optocouplers - 9M Master with 3 * REC2Q Slaves - drive 6 contactors through 6 REC Pre-Charge Unit 5/25/25, 12:47 PM • Martin • Posted in REC Master Slave Large Scale Systems 5/25/25, 12:47 PM

REC WiFi module locked up, how to fix 5/20/25, 7:00 AM • Rick • Posted in REC BMS Tips and Tricks 5/20/25, 7:19 PM

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

REC Q BMS Cerbo GX wakespeed WS-500, REC-BMS, and Cerbo - DC only system, how to remove inverter icons? 5/16/25, 12:09 PM • Bill C. • Posted in WS500 User Installation and Programming Questions 5/29/25, 2:44 PM

How to use the new Mate N Lok connectors 5/15/25, 8:01 AM • Rick • Posted in REC BMS Tips and Tricks 5/15/25, 8:01 AM

REC Q BMS CAN Cerbo GX Which Alternate CAN / BMS protocol are people using? LFP batt using Cerbo GX, Wakespeed WS-500 and the REC-BMS 5/9/25, 8:46 PM • Bill C. • Posted in WS500 Tips, Tricks and support 5/16/25, 11:09 AM

Cerbo GX wakespeed How to fix 0% WS-500 Field Drive reporting on Cerbo GX when charging? 5/9/25, 1:43 PM • Bill C. • Posted in WS500 Tips, Tricks and support 5/29/25, 2:42 PM

WS500 V1.0 Field output driver failed 5/6/25, 7:17 AM • Trond • Posted in WS500 User Installation and Programming Questions 5/8/25, 12:56 PM

External control cuts in and out 5/2/25, 10:24 AM • Ryan • Posted in WS500 User Installation and Programming Questions 5/6/25, 8:17 AM

how to set abms to have less than a 100 percent soc 4/29/25, 10:53 PM • tom • Posted in REC Active BMS 5/6/25, 3:47 PM

How to test REC 2Q BMS internal fuses 4/29/25, 9:08 AM • Rick • Posted in REC 2Q Series BMS 4/29/25, 9:08 AM

REC Q BMS 2Q SW updates for a 9M managing 2 x Q-BMS house batt system on my sailboat? 4/28/25, 2:17 AM • Bill C. • Posted in REC Q Series BMS 4/28/25, 2:50 PM

ABMS REC WIFI Troubleshooting Unstable ABMS-WiFi Connectivity on Boat 4/27/25, 12:47 PM • Stefano • Posted in REC BMS Tips and Tricks 4/27/25, 7:01 PM

ABMS lilliputian switch 4/23/25, 1:58 PM • Stefano • Posted in REC Active BMS 4/27/25, 1:33 PM

Zeus + Cerbo causing NMEA2000 network to crash 4/16/25, 3:59 AM • Trond • Posted in Installation and Configuration 4/16/25, 5:50 AM

Identification of temperature Sensors DS18B20 4/15/25, 10:50 AM • Stefano • Posted in REC BMS Tips and Tricks 4/15/25, 4:44 PM

Master - Slave comunnication 4/14/25, 4:50 PM • Jiri • Posted in REC Master Slave Large Scale Systems 4/21/25, 5:41 AM

abms terminology and interactions 4/10/25, 12:13 PM • tom • Posted in REC Active BMS 4/28/25, 3:46 PM

WS500-PRO / REC Active BMS - "OUTPUT" not displaying on Victron Cerbo GX 4/9/25, 1:54 PM • Ryan • Posted in WS500 User Installation and Programming Questions 6/23/25, 10:56 AM

BMS does not switch to float 4/9/25, 12:23 PM • Franz • Posted in REC Q Series BMS 4/22/25, 12:29 PM

rec abms can access, but says memory card is not working so there is no loggin 4/6/25, 5:30 PM • tom • Posted in REC Active BMS 4/7/25, 9:17 AM

Zeus as REC Active follower on 500k bms can but no cerbo widget. 4/6/25, 4:51 PM • Matt • Posted in Installation and Configuration 8/15/25, 1:05 AM

no Tacho even with forced tachomode 4/1/25, 4:27 AM • Andre • Posted in WS500 User Installation and Programming Questions 4/1/25, 8:33 AM

EEprom memory corruption - shutdown 3/16/25, 3:29 PM • Aaron • Posted in REC Q Series BMS 3/18/25, 4:13 PM

rec bms and victron multiplus 3000 12v and cerbo gx will not go into float mode 3/12/25, 3:26 PM • tom • Posted in REC Active BMS 4/2/25, 5:56 PM

WS500-PRO & REC Active BMS config.json 3/2/25, 3:13 PM • o-firstname • Posted in WS500 User Installation and Programming Questions 3/5/25, 6:06 PM

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

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. • Posted in REC-BMS Programming and Configuration Questions 4/28/25, 2:28 AM

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

Q series BMS Error 15 1/18/25, 8:29 PM • Anthoney • Posted in REC Q Series BMS 2/20/25, 9:27 AM

Precharge with Tyco relays 1/15/25, 1:19 PM • Johan • Posted in REC Active BMS 1/15/25, 1:19 PM

New REC BMS and Victron Cerbo DVCC integration Guide 1/14/25, 2:29 PM • Rick • Posted in REC BMS Tips and Tricks 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. • Posted in REC BMS Tips and Tricks 1/31/25, 11:09 PM

Search

Latest topics

WS500 Field Stuck High

Two (related) issues after updating to 2.9.6 firmware

Unable to install WiFi Module SW 1.6.3

TimeToGo additional message for Victron D-BUS

VRM Remote - "Remote Charging = NO" always when using WS-500 running fw 2.6.1 - but still charges ok

Latest posts

Connecting REC wifi module to the outside world?

REC Master9M with new REC2Q Slave Units - Cable from Master to 1st Slave: which cable colour goes where

WS500 Field Stuck High

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

WS500 Field Stuck High

Forum statistics

Newest members

Martik

Iain

Hans

Dean

Jakub

Most liked authors

Richard

Rick

Trond

Bill C.

Trond

Ben

PeterD

tine

Al

Bill

WS500 Field Stuck High
8/10/25, 7:53 PM • Hans • Posted in WS500 Tips, Tricks and support 8/15/25, 1:07 AM

Two (related) issues after updating to 2.9.6 firmware
7/31/25, 12:25 PM • Hans • Posted in REC Active BMS 8/10/25, 7:56 PM

WiFi FW REC WIFI Unable to install WiFi Module SW 1.6.3
7/5/25, 9:49 PM • Jakub • Posted in REC-BMS Programming and Configuration Questions 7/6/25, 6:28 PM

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

Cerbo GX wakespeed WS-500 VRM Remote - "Remote Charging = NO" always when using WS-500 running fw 2.6.1 - but still charges ok
6/3/25, 2:04 PM • Bill C. • Posted in WS500 Tips, Tricks and support 6/13/25, 7:48 PM

Victron BMV Settings
6/2/25, 5:55 PM • Michael • Posted in REC Active BMS 6/3/25, 3:51 AM

Charging Rates
6/2/25, 4:30 PM • Michael • Posted in WS500 Improvement Suggestions 6/6/25, 12:55 AM

9M Master 2Q Slave Relays Usage of Relays and or Optocouplers - 9M Master with 3 * REC2Q Slaves - drive 6 contactors through 6 REC Pre-Charge Unit
5/25/25, 12:47 PM • Martin • Posted in REC Master Slave Large Scale Systems 5/25/25, 12:47 PM

REC WiFi module locked up, how to fix
5/20/25, 7:00 AM • Rick • Posted in REC BMS Tips and Tricks 5/20/25, 7:19 PM

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

REC Q BMS Cerbo GX wakespeed WS-500, REC-BMS, and Cerbo - DC only system, how to remove inverter icons?
5/16/25, 12:09 PM • Bill C. • Posted in WS500 User Installation and Programming Questions 5/29/25, 2:44 PM

How to use the new Mate N Lok connectors
5/15/25, 8:01 AM • Rick • Posted in REC BMS Tips and Tricks 5/15/25, 8:01 AM

REC Q BMS CAN Cerbo GX Which Alternate CAN / BMS protocol are people using? LFP batt using Cerbo GX, Wakespeed WS-500 and the REC-BMS
5/9/25, 8:46 PM • Bill C. • Posted in WS500 Tips, Tricks and support 5/16/25, 11:09 AM

Cerbo GX wakespeed How to fix 0% WS-500 Field Drive reporting on Cerbo GX when charging?
5/9/25, 1:43 PM • Bill C. • Posted in WS500 Tips, Tricks and support 5/29/25, 2:42 PM

WS500 V1.0 Field output driver failed
5/6/25, 7:17 AM • Trond • Posted in WS500 User Installation and Programming Questions 5/8/25, 12:56 PM

External control cuts in and out
5/2/25, 10:24 AM • Ryan • Posted in WS500 User Installation and Programming Questions 5/6/25, 8:17 AM

how to set abms to have less than a 100 percent soc
4/29/25, 10:53 PM • tom • Posted in REC Active BMS 5/6/25, 3:47 PM

How to test REC 2Q BMS internal fuses
4/29/25, 9:08 AM • Rick • Posted in REC 2Q Series BMS 4/29/25, 9:08 AM

REC Q BMS 2Q SW updates for a 9M managing 2 x Q-BMS house batt system on my sailboat?
4/28/25, 2:17 AM • Bill C. • Posted in REC Q Series BMS 4/28/25, 2:50 PM

ABMS REC WIFI Troubleshooting Unstable ABMS-WiFi Connectivity on Boat
4/27/25, 12:47 PM • Stefano • Posted in REC BMS Tips and Tricks 4/27/25, 7:01 PM

ABMS lilliputian switch
4/23/25, 1:58 PM • Stefano • Posted in REC Active BMS 4/27/25, 1:33 PM

Zeus + Cerbo causing NMEA2000 network to crash
4/16/25, 3:59 AM • Trond • Posted in Installation and Configuration 4/16/25, 5:50 AM

Identification of temperature Sensors DS18B20
4/15/25, 10:50 AM • Stefano • Posted in REC BMS Tips and Tricks 4/15/25, 4:44 PM

Master - Slave comunnication
4/14/25, 4:50 PM • Jiri • Posted in REC Master Slave Large Scale Systems 4/21/25, 5:41 AM

abms terminology and interactions
4/10/25, 12:13 PM • tom • Posted in REC Active BMS 4/28/25, 3:46 PM

WS500-PRO / REC Active BMS - "OUTPUT" not displaying on Victron Cerbo GX
4/9/25, 1:54 PM • Ryan • Posted in WS500 User Installation and Programming Questions 6/23/25, 10:56 AM

BMS does not switch to float
4/9/25, 12:23 PM • Franz • Posted in REC Q Series BMS 4/22/25, 12:29 PM

rec abms can access, but says memory card is not working so there is no loggin
4/6/25, 5:30 PM • tom • Posted in REC Active BMS 4/7/25, 9:17 AM

Zeus as REC Active follower on 500k bms can but no cerbo widget.
4/6/25, 4:51 PM • Matt • Posted in Installation and Configuration 8/15/25, 1:05 AM

no Tacho even with forced tachomode
4/1/25, 4:27 AM • Andre • Posted in WS500 User Installation and Programming Questions 4/1/25, 8:33 AM

EEprom memory corruption - shutdown
3/16/25, 3:29 PM • Aaron • Posted in REC Q Series BMS 3/18/25, 4:13 PM

rec bms and victron multiplus 3000 12v and cerbo gx will not go into float mode
3/12/25, 3:26 PM • tom • Posted in REC Active BMS 4/2/25, 5:56 PM

WS500-PRO & REC Active BMS config.json
3/2/25, 3:13 PM • o-firstname • Posted in WS500 User Installation and Programming Questions 3/5/25, 6:06 PM

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

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. • Posted in REC-BMS Programming and Configuration Questions 4/28/25, 2:28 AM

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

Q series BMS Error 15
1/18/25, 8:29 PM • Anthoney • Posted in REC Q Series BMS 2/20/25, 9:27 AM

Precharge with Tyco relays
1/15/25, 1:19 PM • Johan • Posted in REC Active BMS 1/15/25, 1:19 PM

New REC BMS and Victron Cerbo DVCC integration Guide
1/14/25, 2:29 PM • Rick • Posted in REC BMS Tips and Tricks 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. • Posted in REC BMS Tips and Tricks 1/31/25, 11:09 PM