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200-250 Amps Charging Shown But No Shore Power or Engine/Alternator Feeding System
1/17/26, 6:24 PM • Jamie • Posted in REC Active BMS 1/17/26, 8:48 PM

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

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45
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R

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

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20
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R

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

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5
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PCB, pad assignments, Serial Port
Serial port pads on PCB?
1/2/26, 2:24 PM • Ezra • Posted in WS500 Tips, Tricks and support 1/2/26, 7:44 PM

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19
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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
12/18/25, 5:27 PM • Bill C. • Posted in REC Q Series BMS 12/19/25, 12:55 PM

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3
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34
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firmware software
WS firmware 2.6.1 has been released
12/12/25, 1:04 AM • Bill C. • Posted in WS500 Tips, Tricks and support 12/13/25, 3:08 PM

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6
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Lowering REC BMS charge voltage settings to prolong battery life challenges
11/30/25, 2:08 PM • Rick • Posted in REC-BMS Programming and Configuration Questions 11/30/25, 2:08 PM

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1
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72
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Integration of ABMS with WS500 and LFP with FLA auxiliary battery
11/29/25, 1:59 PM • Stefano • Posted in REC Active BMS 11/30/25, 2:18 PM

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32
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Dual REC Actives
11/23/25, 5:43 PM • Geoff • Posted in REC Active BMS 11/30/25, 1:22 PM

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5
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54
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Assistance with Rec Active BMS not charging
11/18/25, 11:57 AM • stevehmick • Posted in REC Active BMS 11/19/25, 10:35 AM

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3
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44
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BMS not following set parameters
11/13/25, 3:18 PM • JP@REAP • Posted in REC 2Q Series BMS 11/13/25, 8:50 PM

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2
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28
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REC-ABMS VE.CAN support and Victron VE.CAN devices
10/29/25, 10:33 AM • SmoothFroggy • Posted in REC Active BMS 10/29/25, 10:33 AM

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1
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42
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BMS battery energy storage
Battery
9/18/25, 5:07 AM • Natalia • Posted in REC Active BMS 9/18/25, 5:07 AM

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1
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24
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REC ABMS - integration with heltec 4s Active Balancer
8/26/25, 5:17 PM • Stefano • Posted in REC Active BMS 8/26/25, 9:01 PM

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

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5
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51
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Two (related) issues after updating to 2.9.6 firmware
7/31/25, 12:25 PM • Hans • Posted in REC Active BMS 8/24/25, 2:07 AM

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5
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95
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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

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4
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47
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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

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2
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37
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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
6/3/25, 2:04 PM • Bill C. • Posted in WS500 Tips, Tricks and support 6/13/25, 7:48 PM

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4
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78
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M

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

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2
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40
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M

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

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5
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76
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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

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1
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52
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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

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2
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75
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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

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1
Posts

52
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

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2
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49
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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

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1
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31
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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
5/9/25, 8:46 PM • Bill C. • Posted in WS500 Tips, Tricks and support 5/16/25, 11:09 AM

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4
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63
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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

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6
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90
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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

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3
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51
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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

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2
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48
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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

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3
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53
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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

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1
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60
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

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4
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64
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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 9/8/25, 9:15 AM

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7
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111
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S

ABMS lilliputian switch
4/23/25, 1:58 PM • Stefano • Posted in REC Active BMS 9/8/25, 9:32 AM

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5
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81
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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

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2
Posts

130
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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

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2
Posts

45
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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

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3
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70
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abms terminology and interactions
4/10/25, 12:13 PM • tom • Posted in REC Active BMS 4/28/25, 3:46 PM

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3
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65
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All topics

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

External control cuts in and out

how to set abms to have less than a 100 percent soc

How to test REC 2Q BMS internal fuses

SW updates for a 9M managing 2 x Q-BMS house batt system on my sailboat?

Troubleshooting Unstable ABMS-WiFi Connectivity on Boat

ABMS lilliputian switch

Zeus + Cerbo causing NMEA2000 network to crash

Identification of temperature Sensors DS18B20

Master - Slave comunnication

abms terminology and interactions

Search

Latest topics

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?

Latest posts

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

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

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

CAN failures with REC ABMS

CAN failures with REC ABMS

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