All topics

E

Downgrading firmware
12/5/23, 3:57 PM • Edward • Posted in REC Active BMS 12/7/23, 3:58 PM

4

4
Posts

93
Views
E

Correct Firmware to use for Two Contactor Configuration
12/5/23, 3:54 PM • Edward • Posted in REC Active BMS 12/7/23, 4:03 PM

2

2
Posts

132
Views
N

Low Temperature Charging Prevented (Wakespeed 500+Cerbo+REC Q)
11/29/23, 12:51 PM • Nathaniel • Posted in WS500 Tips, Tricks and support 12/5/23, 5:41 PM

4

4
Posts

154
Views
R

Nissan Leaf Cell pack Wiring Diagram
11/25/23, 12:19 PM • Rick • Posted in REC 2Q Series BMS 11/25/23, 12:19 PM

1

1
Posts

16
Views
G

Pin Connections
11/22/23, 1:07 PM • Geoff • Posted in REC Active BMS 11/26/23, 6:09 PM

5

5
Posts

82
Views
R

REC ACTIVE BMS CAN-BUS Compatibility
11/15/23, 2:28 PM • Raymond • Posted in REC Active BMS 11/15/23, 2:28 PM

1

1
Posts

75
Views
How many Cerbo GX's do I need?
11/8/23, 5:08 PM • Bill C. • Posted in REC BMS to Victron VE Bus 11/10/23, 1:09 PM

2

2
Posts

89
Views
A

Warranty on REC equipment?
11/7/23, 5:32 PM • Antoine • Posted in REC Product Announcements 11/8/23, 5:45 AM

2

2
Posts

44
Views
A

What is the failure mode when a slave battery is unavailable?
11/7/23, 5:31 PM • Antoine • Posted in REC Master Slave Large Scale Systems 11/7/23, 7:36 PM

2

2
Posts

91
Views
M

2Q BMS REC Master9M with new REC2Q Slave Units - Cable from Master to 1st Slave: which cable colour goes where
11/3/23, 12:18 PM • Martin • Posted in REC BMS North America User Forum 8/15/25, 2:37 PM

11

11
Posts

195
Views
When does 100% SOC get set?
11/1/23, 9:40 PM • Bill C. • Posted in REC BMS Tips and Tricks 11/2/23, 7:45 AM

4

4
Posts

176
Views
Tips for mounting the REC-ABMS power switch
10/27/23, 4:01 AM • Bill C. • Posted in REC BMS Tips and Tricks 10/27/23, 4:01 AM

1

1
Posts

74
Views
D

Winter Question: Toronto
10/20/23, 11:44 AM • David • Posted in REC-BMS Programming and Configuration Questions 10/20/23, 11:44 AM

1

1
Posts

60
Views
REC Q BMS REC newbie Setting up REC BMS + WakeSpeed 500 + Cerbo GX for marine use
10/18/23, 11:11 AM • Bill C. • Posted in REC Master Slave Large Scale Systems 10/18/23, 11:11 AM

1

1
Posts

44
Views
M

Victron newbie REC BMS with parallel connection batteries
10/16/23, 3:52 AM • Mihai • Posted in REC Master Slave Large Scale Systems 10/17/23, 6:08 PM

2

2
Posts

78
Views
NEWBIE question- Need help getting REC ABMS to work with Blue Sea ML-RBS contactor
10/15/23, 2:51 AM • Bill C. • Posted in REC BMS Tips and Tricks 12/5/24, 2:54 AM

12

12
Posts

568
Views
E

Seeing a "PROBLEM WITH SD CARD, LOGGING IS DISABLED" message
10/9/23, 5:04 PM • Eran • Posted in REC Q Series BMS 11/25/23, 6:46 PM

7

7
Posts

200
Views
normalized "Newbie question" re "normalized 12v 500Ah battery" comments in Comms manual
10/7/23, 2:03 PM • Bill C. • Posted in WS500 Tips, Tricks and support 10/16/23, 9:33 AM

4

4
Posts

110
Views
WS App Putty "Newbie" question re different tools for communicating with the WS500
10/7/23, 1:54 PM • Bill C. • Posted in WS500 Tips, Tricks and support 10/16/23, 9:36 AM

4

4
Posts

102
Views
newbie new user Add a "Newbie Boot Camp" section to the forum
10/7/23, 1:50 PM • Bill C. • Posted in WS500 Tips, Tricks and support 10/7/23, 2:04 PM

2

2
Posts

56
Views
B

Problem with communication REC 2Q and WS500
10/6/23, 1:50 AM • Ben • Posted in REC 2Q Series BMS 10/7/23, 11:01 AM

2

2
Posts

71
Views
J

REC-Active Firmware update
10/2/23, 2:12 PM • John • Posted in REC Active BMS 10/7/23, 11:10 AM

4

4
Posts

202
Views
J

How to download firmware
9/30/23, 1:26 PM • John • Posted in REC Active BMS 10/7/23, 10:58 AM

5

5
Posts

134
Views
R

Forum update gremlins
9/26/23, 3:12 PM • Rick • Posted in OGM Energy News 9/26/23, 3:12 PM

1

1
Posts

30
Views
New, simple install throwing Error 13 and Error 43 codes
9/26/23, 4:11 AM • Bill C. • Posted in WS500 User Installation and Programming Questions 12/23/23, 2:24 PM

2

2
Posts

299
Views
T

WS500 giving Error #43
9/23/23, 3:11 PM • Trond • Posted in WS500 Tips, Tricks and support 9/26/23, 6:08 AM

5

5
Posts

744
Views
JR

REC Q BMS 2Q 2 x 24V banks in parallel
9/19/23, 10:02 AM • Jacopo Rufo • Posted in REC Master Slave Large Scale Systems 9/19/23, 2:51 PM

3

3
Posts

47
Views
H

Working up design -- multiple questions
9/12/23, 11:45 AM • Harry • Posted in REC Active BMS 9/17/23, 1:08 PM

6

6
Posts

122
Views
J

REC Active BMS Not Ramping Down Near Top
9/6/23, 10:37 PM • Jamie • Posted in REC Active BMS 9/21/23, 6:14 AM

19

19
Posts

461
Views
J

WS500 Troubles - Not Sensing Alternator, Blinking Red But No Error Code on Victron Cerbo
9/5/23, 1:53 PM • Jamie • Posted in WS500 Tips, Tricks and support 9/20/23, 3:27 PM

22

22
Posts

952
Views
J

REC Active BMS Wifi Module - Missing Pages After Firmware Upgrade
9/5/23, 10:28 AM • Jamie • Posted in REC Active BMS 9/8/23, 6:31 PM

11

11
Posts

409
Views
J

Victron 2Q REC REC 2Q BMS and Victron
8/22/23, 10:44 AM • Jeremy • Posted in REC Q Series BMS 8/22/23, 10:44 AM

1

1
Posts

194
Views
S

Marine Twin Engine house battery charging
8/19/23, 1:21 PM • Scott • Posted in WS500 User Installation and Programming Questions 8/22/23, 4:58 PM

3

3
Posts

89
Views
H

REC Q BMS Sunny Island Not charging REC-BMS / Sunny Island not charging
8/17/23, 8:27 PM • Hank • Posted in REC SI Series BMS 8/22/23, 8:07 PM

7

7
Posts

151
Views
J

What size fuse for the Feature In Port wire?
8/4/23, 9:23 PM • Joe • Posted in WS500 User Installation and Programming Questions 8/5/23, 8:28 AM

2

2
Posts

63
Views
M

Beginners Questions about my 2P4S setup
8/4/23, 9:20 AM • Miro • Posted in REC Active BMS 8/10/23, 8:25 AM

5

5
Posts

170
Views
M

Does yours work? - Victron/CerboGX NOT Calculating (Capacity, Consumed, and Remaining Time)
7/26/23, 7:12 PM • Mike • Posted in REC Active BMS 8/10/23, 4:47 AM

2

2
Posts

123
Views
M

How to wire Victron compatible with seperate charge and discharge relays
7/26/23, 4:25 PM • Miro • Posted in REC Active BMS 8/2/23, 6:18 AM

8

8
Posts

215
Views
M

Has anyone tried the BlueSea 7718 Contactor?
7/23/23, 10:28 PM • Matt • Posted in REC BMS Tips and Tricks 8/5/23, 8:13 AM

2

2
Posts

58
Views
R

some initial ideas
6/25/23, 10:50 AM • Rick • Posted in Feature Requests 7/18/23, 10:34 AM

2

2
Posts

85
Views

1
2
3
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All topics

Downgrading firmware 12/5/23, 3:57 PM • Edward • Posted in REC Active BMS 12/7/23, 3:58 PM

Correct Firmware to use for Two Contactor Configuration 12/5/23, 3:54 PM • Edward • Posted in REC Active BMS 12/7/23, 4:03 PM

Low Temperature Charging Prevented (Wakespeed 500+Cerbo+REC Q) 11/29/23, 12:51 PM • Nathaniel • Posted in WS500 Tips, Tricks and support 12/5/23, 5:41 PM

Nissan Leaf Cell pack Wiring Diagram 11/25/23, 12:19 PM • Rick • Posted in REC 2Q Series BMS 11/25/23, 12:19 PM

Pin Connections 11/22/23, 1:07 PM • Geoff • Posted in REC Active BMS 11/26/23, 6:09 PM

REC ACTIVE BMS CAN-BUS Compatibility 11/15/23, 2:28 PM • Raymond • Posted in REC Active BMS 11/15/23, 2:28 PM

How many Cerbo GX's do I need? 11/8/23, 5:08 PM • Bill C. • Posted in REC BMS to Victron VE Bus 11/10/23, 1:09 PM

Warranty on REC equipment? 11/7/23, 5:32 PM • Antoine • Posted in REC Product Announcements 11/8/23, 5:45 AM

What is the failure mode when a slave battery is unavailable? 11/7/23, 5:31 PM • Antoine • Posted in REC Master Slave Large Scale Systems 11/7/23, 7:36 PM

2Q BMS REC Master9M with new REC2Q Slave Units - Cable from Master to 1st Slave: which cable colour goes where 11/3/23, 12:18 PM • Martin • Posted in REC BMS North America User Forum 8/15/25, 2:37 PM

When does 100% SOC get set? 11/1/23, 9:40 PM • Bill C. • Posted in REC BMS Tips and Tricks 11/2/23, 7:45 AM

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

Winter Question: Toronto 10/20/23, 11:44 AM • David • Posted in REC-BMS Programming and Configuration Questions 10/20/23, 11:44 AM

REC Q BMS REC newbie Setting up REC BMS + WakeSpeed 500 + Cerbo GX for marine use 10/18/23, 11:11 AM • Bill C. • Posted in REC Master Slave Large Scale Systems 10/18/23, 11:11 AM

Victron newbie REC BMS with parallel connection batteries 10/16/23, 3:52 AM • Mihai • Posted in REC Master Slave Large Scale Systems 10/17/23, 6:08 PM

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

Seeing a "PROBLEM WITH SD CARD, LOGGING IS DISABLED" message 10/9/23, 5:04 PM • Eran • Posted in REC Q Series BMS 11/25/23, 6:46 PM

normalized "Newbie question" re "normalized 12v 500Ah battery" comments in Comms manual 10/7/23, 2:03 PM • Bill C. • Posted in WS500 Tips, Tricks and support 10/16/23, 9:33 AM

WS App Putty "Newbie" question re different tools for communicating with the WS500 10/7/23, 1:54 PM • Bill C. • Posted in WS500 Tips, Tricks and support 10/16/23, 9:36 AM

newbie new user Add a "Newbie Boot Camp" section to the forum 10/7/23, 1:50 PM • Bill C. • Posted in WS500 Tips, Tricks and support 10/7/23, 2:04 PM

Problem with communication REC 2Q and WS500 10/6/23, 1:50 AM • Ben • Posted in REC 2Q Series BMS 10/7/23, 11:01 AM

REC-Active Firmware update 10/2/23, 2:12 PM • John • Posted in REC Active BMS 10/7/23, 11:10 AM

How to download firmware 9/30/23, 1:26 PM • John • Posted in REC Active BMS 10/7/23, 10:58 AM

Forum update gremlins 9/26/23, 3:12 PM • Rick • Posted in OGM Energy News 9/26/23, 3:12 PM

New, simple install throwing Error 13 and Error 43 codes 9/26/23, 4:11 AM • Bill C. • Posted in WS500 User Installation and Programming Questions 12/23/23, 2:24 PM

WS500 giving Error #43 9/23/23, 3:11 PM • Trond • Posted in WS500 Tips, Tricks and support 9/26/23, 6:08 AM

REC Q BMS 2Q 2 x 24V banks in parallel 9/19/23, 10:02 AM • Jacopo Rufo • Posted in REC Master Slave Large Scale Systems 9/19/23, 2:51 PM

Working up design -- multiple questions 9/12/23, 11:45 AM • Harry • Posted in REC Active BMS 9/17/23, 1:08 PM

REC Active BMS Not Ramping Down Near Top 9/6/23, 10:37 PM • Jamie • Posted in REC Active BMS 9/21/23, 6:14 AM

WS500 Troubles - Not Sensing Alternator, Blinking Red But No Error Code on Victron Cerbo 9/5/23, 1:53 PM • Jamie • Posted in WS500 Tips, Tricks and support 9/20/23, 3:27 PM

REC Active BMS Wifi Module - Missing Pages After Firmware Upgrade 9/5/23, 10:28 AM • Jamie • Posted in REC Active BMS 9/8/23, 6:31 PM

Victron 2Q REC REC 2Q BMS and Victron 8/22/23, 10:44 AM • Jeremy • Posted in REC Q Series BMS 8/22/23, 10:44 AM

Marine Twin Engine house battery charging 8/19/23, 1:21 PM • Scott • Posted in WS500 User Installation and Programming Questions 8/22/23, 4:58 PM

REC Q BMS Sunny Island Not charging REC-BMS / Sunny Island not charging 8/17/23, 8:27 PM • Hank • Posted in REC SI Series BMS 8/22/23, 8:07 PM

What size fuse for the Feature In Port wire? 8/4/23, 9:23 PM • Joe • Posted in WS500 User Installation and Programming Questions 8/5/23, 8:28 AM

Beginners Questions about my 2P4S setup 8/4/23, 9:20 AM • Miro • Posted in REC Active BMS 8/10/23, 8:25 AM

Does yours work? - Victron/CerboGX NOT Calculating (Capacity, Consumed, and Remaining Time) 7/26/23, 7:12 PM • Mike • Posted in REC Active BMS 8/10/23, 4:47 AM

How to wire Victron compatible with seperate charge and discharge relays 7/26/23, 4:25 PM • Miro • Posted in REC Active BMS 8/2/23, 6:18 AM

Has anyone tried the BlueSea 7718 Contactor? 7/23/23, 10:28 PM • Matt • Posted in REC BMS Tips and Tricks 8/5/23, 8:13 AM

some initial ideas 6/25/23, 10:50 AM • Rick • Posted in Feature Requests 7/18/23, 10:34 AM

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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

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Connecting REC wifi module to the outside world?

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Downgrading firmware
12/5/23, 3:57 PM • Edward • Posted in REC Active BMS 12/7/23, 3:58 PM

Correct Firmware to use for Two Contactor Configuration
12/5/23, 3:54 PM • Edward • Posted in REC Active BMS 12/7/23, 4:03 PM

Low Temperature Charging Prevented (Wakespeed 500+Cerbo+REC Q)
11/29/23, 12:51 PM • Nathaniel • Posted in WS500 Tips, Tricks and support 12/5/23, 5:41 PM

Nissan Leaf Cell pack Wiring Diagram
11/25/23, 12:19 PM • Rick • Posted in REC 2Q Series BMS 11/25/23, 12:19 PM

Pin Connections
11/22/23, 1:07 PM • Geoff • Posted in REC Active BMS 11/26/23, 6:09 PM

REC ACTIVE BMS CAN-BUS Compatibility
11/15/23, 2:28 PM • Raymond • Posted in REC Active BMS 11/15/23, 2:28 PM

How many Cerbo GX's do I need?
11/8/23, 5:08 PM • Bill C. • Posted in REC BMS to Victron VE Bus 11/10/23, 1:09 PM

Warranty on REC equipment?
11/7/23, 5:32 PM • Antoine • Posted in REC Product Announcements 11/8/23, 5:45 AM

What is the failure mode when a slave battery is unavailable?
11/7/23, 5:31 PM • Antoine • Posted in REC Master Slave Large Scale Systems 11/7/23, 7:36 PM

2Q BMS REC Master9M with new REC2Q Slave Units - Cable from Master to 1st Slave: which cable colour goes where
11/3/23, 12:18 PM • Martin • Posted in REC BMS North America User Forum 8/15/25, 2:37 PM

When does 100% SOC get set?
11/1/23, 9:40 PM • Bill C. • Posted in REC BMS Tips and Tricks 11/2/23, 7:45 AM

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

Winter Question: Toronto
10/20/23, 11:44 AM • David • Posted in REC-BMS Programming and Configuration Questions 10/20/23, 11:44 AM

REC Q BMS REC newbie Setting up REC BMS + WakeSpeed 500 + Cerbo GX for marine use
10/18/23, 11:11 AM • Bill C. • Posted in REC Master Slave Large Scale Systems 10/18/23, 11:11 AM

Victron newbie REC BMS with parallel connection batteries
10/16/23, 3:52 AM • Mihai • Posted in REC Master Slave Large Scale Systems 10/17/23, 6:08 PM

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

Seeing a "PROBLEM WITH SD CARD, LOGGING IS DISABLED" message
10/9/23, 5:04 PM • Eran • Posted in REC Q Series BMS 11/25/23, 6:46 PM

normalized "Newbie question" re "normalized 12v 500Ah battery" comments in Comms manual
10/7/23, 2:03 PM • Bill C. • Posted in WS500 Tips, Tricks and support 10/16/23, 9:33 AM

WS App Putty "Newbie" question re different tools for communicating with the WS500
10/7/23, 1:54 PM • Bill C. • Posted in WS500 Tips, Tricks and support 10/16/23, 9:36 AM

newbie new user Add a "Newbie Boot Camp" section to the forum
10/7/23, 1:50 PM • Bill C. • Posted in WS500 Tips, Tricks and support 10/7/23, 2:04 PM

Problem with communication REC 2Q and WS500
10/6/23, 1:50 AM • Ben • Posted in REC 2Q Series BMS 10/7/23, 11:01 AM

REC-Active Firmware update
10/2/23, 2:12 PM • John • Posted in REC Active BMS 10/7/23, 11:10 AM

How to download firmware
9/30/23, 1:26 PM • John • Posted in REC Active BMS 10/7/23, 10:58 AM

Forum update gremlins
9/26/23, 3:12 PM • Rick • Posted in OGM Energy News 9/26/23, 3:12 PM

New, simple install throwing Error 13 and Error 43 codes
9/26/23, 4:11 AM • Bill C. • Posted in WS500 User Installation and Programming Questions 12/23/23, 2:24 PM

WS500 giving Error #43
9/23/23, 3:11 PM • Trond • Posted in WS500 Tips, Tricks and support 9/26/23, 6:08 AM

REC Q BMS 2Q 2 x 24V banks in parallel
9/19/23, 10:02 AM • Jacopo Rufo • Posted in REC Master Slave Large Scale Systems 9/19/23, 2:51 PM

Working up design -- multiple questions
9/12/23, 11:45 AM • Harry • Posted in REC Active BMS 9/17/23, 1:08 PM

REC Active BMS Not Ramping Down Near Top
9/6/23, 10:37 PM • Jamie • Posted in REC Active BMS 9/21/23, 6:14 AM

WS500 Troubles - Not Sensing Alternator, Blinking Red But No Error Code on Victron Cerbo
9/5/23, 1:53 PM • Jamie • Posted in WS500 Tips, Tricks and support 9/20/23, 3:27 PM

REC Active BMS Wifi Module - Missing Pages After Firmware Upgrade
9/5/23, 10:28 AM • Jamie • Posted in REC Active BMS 9/8/23, 6:31 PM

Victron 2Q REC REC 2Q BMS and Victron
8/22/23, 10:44 AM • Jeremy • Posted in REC Q Series BMS 8/22/23, 10:44 AM

Marine Twin Engine house battery charging
8/19/23, 1:21 PM • Scott • Posted in WS500 User Installation and Programming Questions 8/22/23, 4:58 PM

REC Q BMS Sunny Island Not charging REC-BMS / Sunny Island not charging
8/17/23, 8:27 PM • Hank • Posted in REC SI Series BMS 8/22/23, 8:07 PM

What size fuse for the Feature In Port wire?
8/4/23, 9:23 PM • Joe • Posted in WS500 User Installation and Programming Questions 8/5/23, 8:28 AM

Beginners Questions about my 2P4S setup
8/4/23, 9:20 AM • Miro • Posted in REC Active BMS 8/10/23, 8:25 AM

Does yours work? - Victron/CerboGX NOT Calculating (Capacity, Consumed, and Remaining Time)
7/26/23, 7:12 PM • Mike • Posted in REC Active BMS 8/10/23, 4:47 AM

How to wire Victron compatible with seperate charge and discharge relays
7/26/23, 4:25 PM • Miro • Posted in REC Active BMS 8/2/23, 6:18 AM

Has anyone tried the BlueSea 7718 Contactor?
7/23/23, 10:28 PM • Matt • Posted in REC BMS Tips and Tricks 8/5/23, 8:13 AM

some initial ideas
6/25/23, 10:50 AM • Rick • Posted in Feature Requests 7/18/23, 10:34 AM