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REC BMS 29-bit table published anywhere?
o-firstname • Posted in REC BMS to Victron VE Bus • 5/28/26, 11:40 PM 5/28/26, 11:40 PM

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Please fix manual for Active BMS
Martin • Posted in REC Active BMS • 5/10/26, 9:03 PM 5/10/26, 9:03 PM

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REC 2Q with two (or more) contactors (OV + UV)
Geoff • Posted in REC 2Q Series BMS • 5/7/26, 8:56 PM 5/23/26, 11:28 AM

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46
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WS500 P Harness how to identify temp sensor vs negative
JPOUBJ • Posted in WS500 Tips, Tricks and support • 4/28/26, 6:13 PM 4/29/26, 12:50 PM

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have I bricked my WIFI module 😭
radelservices • Posted in REC Active BMS • 4/23/26, 1:22 PM 4/24/26, 9:37 AM

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Adsorption/Bulk
Anthoney • Posted in REC 2Q Series BMS • 3/17/26, 9:03 PM 4/29/26, 8:10 AM

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wakespeed Android tablet
Beware of using budget Android tablets! They come with hidden bloatware / adware!
Bill C. • Posted in WS500 Tips, Tricks and support • 3/15/26, 11:40 AM 3/15/26, 11:40 AM

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Documentation for Task Settings over RS-485
Kevin • Posted in REC Active BMS • 3/12/26, 2:25 PM 3/28/26, 8:53 AM

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Protecting altenator, with ATC signal when main relay BMS switch off
Gerard • Posted in REC Active BMS • 3/10/26, 1:31 PM 3/10/26, 1:31 PM

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Current firmware for ABMS, cerbo GX, and WS500
Stefano • Posted in REC Active BMS • 2/15/26, 11:59 AM 2/15/26, 11:59 AM

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58
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200-250 Amps Charging Shown But No Shore Power or Engine/Alternator Feeding System
Jamie • Posted in REC Active BMS • 1/17/26, 6:24 PM 5/9/26, 10:44 AM

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4
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64
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K

CAN failures with REC ABMS
Kevin • Posted in WS500 User Installation and Programming Questions • 1/13/26, 7:08 PM 1/16/26, 9:11 PM

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113
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REC AI tech support
New for 2026 REC BMS AI Tech support Agent is now online
Rick • Posted in REC-BMS Programming and Configuration Questions • 1/3/26, 2:36 PM 1/3/26, 2:36 PM

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New REC Master 10M for 2026
Rick • Posted in REC Product Announcements • 1/3/26, 2:30 PM 1/3/26, 2:30 PM

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PCB, pad assignments, Serial Port
Serial port pads on PCB?
Ezra • Posted in WS500 Tips, Tricks and support • 1/2/26, 2:24 PM 1/2/26, 7:44 PM

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REC Q BMS Cerbo GX wakespeed
Looking for feedback on REC 1Q BMS Settings for 24V CALB LFP Starter Battery with Wakespeed, Cerbo GX
Bill C. • Posted in REC Q Series BMS • 12/18/25, 5:27 PM 12/19/25, 12:55 PM

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73
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firmware software
WS firmware 2.6.1 has been released
Bill C. • Posted in WS500 Tips, Tricks and support • 12/12/25, 1:04 AM 12/13/25, 3:08 PM

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Lowering REC BMS charge voltage settings to prolong battery life challenges
Rick • Posted in REC-BMS Programming and Configuration Questions • 11/30/25, 2:08 PM 11/30/25, 2:08 PM

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125
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Integration of ABMS with WS500 and LFP with FLA auxiliary battery
Stefano • Posted in REC Active BMS • 11/29/25, 1:59 PM 11/30/25, 2:18 PM

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Dual REC Actives
Geoff • Posted in REC Active BMS • 11/23/25, 5:43 PM 5/9/26, 7:15 PM

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185
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Assistance with Rec Active BMS not charging
stevehmick • Posted in REC Active BMS • 11/18/25, 11:57 AM 11/19/25, 10:35 AM

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84
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BMS not following set parameters
JP@REAP • Posted in REC 2Q Series BMS • 11/13/25, 3:18 PM 11/13/25, 8:50 PM

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REC-ABMS VE.CAN support and Victron VE.CAN devices
SmoothFroggy • Posted in REC Active BMS • 10/29/25, 10:33 AM 10/29/25, 10:33 AM

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75
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BMS battery energy storage
Battery
Natalia • Posted in REC Active BMS • 9/18/25, 5:07 AM 9/18/25, 5:07 AM

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46
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REC ABMS - integration with heltec 4s Active Balancer
Stefano • Posted in REC Active BMS • 8/26/25, 5:17 PM 8/26/25, 9:01 PM

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WS500 Field Stuck High
Hans • Posted in WS500 Tips, Tricks and support • 8/10/25, 7:53 PM 8/24/25, 1:48 AM

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107
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Two (related) issues after updating to 2.9.6 firmware
Hans • Posted in REC Active BMS • 7/31/25, 12:25 PM 8/24/25, 2:07 AM

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130
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WiFi FW REC WIFI
Unable to install WiFi Module SW 1.6.3
Jakub • Posted in REC-BMS Programming and Configuration Questions • 7/5/25, 9:49 PM 7/6/25, 6:28 PM

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

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

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4
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107
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Victron BMV Settings
Michael • Posted in REC Active BMS • 6/2/25, 5:55 PM 6/3/25, 3:51 AM

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58
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Charging Rates
Michael • Posted in WS500 Improvement Suggestions • 6/2/25, 4:30 PM 6/6/25, 12:55 AM

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125
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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
Martin • Posted in REC Master Slave Large Scale Systems • 5/25/25, 12:47 PM 5/25/25, 12:47 PM

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85
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REC WiFi module locked up, how to fix
Rick • Posted in REC BMS Tips and Tricks • 5/20/25, 7:00 AM 5/20/25, 7:19 PM

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153
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Float settings with LFP batteries and REC BMS
Rick • Posted in REC BMS Tips and Tricks • 5/19/25, 9:00 AM 5/19/25, 9:00 AM

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76
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REC Q BMS Cerbo GX wakespeed
WS-500, REC-BMS, and Cerbo - DC only system, how to remove inverter icons?
Bill C. • Posted in WS500 User Installation and Programming Questions • 5/16/25, 12:09 PM 5/29/25, 2:44 PM

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69
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How to use the new Mate N Lok connectors
Rick • Posted in REC BMS Tips and Tricks • 5/15/25, 8:01 AM 5/15/25, 8:01 AM

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46
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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
Bill C. • Posted in WS500 Tips, Tricks and support • 5/9/25, 8:46 PM 5/16/25, 11:09 AM

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4
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90
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Cerbo GX wakespeed
How to fix 0% WS-500 Field Drive reporting on Cerbo GX when charging?
Bill C. • Posted in WS500 Tips, Tricks and support • 5/9/25, 1:43 PM 5/29/25, 2:42 PM

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6
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132
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WS500 V1.0 Field output driver failed
Trond • Posted in WS500 User Installation and Programming Questions • 5/6/25, 7:17 AM 5/8/25, 12:56 PM

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All topics

REC BMS 29-bit table published anywhere?

Please fix manual for Active BMS

REC 2Q with two (or more) contactors (OV + UV)

WS500 P Harness how to identify temp sensor vs negative

have I bricked my WIFI module 😭

Adsorption/Bulk

Beware of using budget Android tablets! They come with hidden bloatware / adware!

Documentation for Task Settings over RS-485

Protecting altenator, with ATC signal when main relay BMS switch off

Current firmware for ABMS, cerbo GX, and WS500

200-250 Amps Charging Shown But No Shore Power or Engine/Alternator Feeding System

CAN failures with REC ABMS

New for 2026 REC BMS AI Tech support Agent is now online

New REC Master 10M for 2026

Serial port pads on PCB?

Looking for feedback on REC 1Q BMS Settings for 24V CALB LFP Starter Battery with Wakespeed, Cerbo GX

WS firmware 2.6.1 has been released

Lowering REC BMS charge voltage settings to prolong battery life challenges

Integration of ABMS with WS500 and LFP with FLA auxiliary battery

Dual REC Actives

Assistance with Rec Active BMS not charging

BMS not following set parameters

REC-ABMS VE.CAN support and Victron VE.CAN devices

Battery

REC ABMS - integration with heltec 4s Active Balancer

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

Victron BMV Settings

Charging Rates

Usage of Relays and or Optocouplers - 9M Master with 3 * REC2Q Slaves - drive 6 contactors through 6 REC Pre-Charge Unit

REC WiFi module locked up, how to fix

Float settings with LFP batteries and REC BMS

WS-500, REC-BMS, and Cerbo - DC only system, how to remove inverter icons?

How to use the new Mate N Lok connectors

Which Alternate CAN / BMS protocol are people using? LFP batt using Cerbo GX, Wakespeed WS-500 and the REC-BMS

How to fix 0% WS-500 Field Drive reporting on Cerbo GX when charging?

WS500 V1.0 Field output driver failed