REC Active BMS

12V Active balancing BMS

99 Topics 2 Followers

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

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4
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164
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Rick
10/7/23, 11:10 AM

it is free to download off of our REC North America site. I already sent you a link to the ...
J

How to download firmware
9/30/23, 1:26 PM • John 10/7/23, 10:58 AM

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5
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119
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Rick
10/7/23, 10:58 AM

@John Yes, the if you download the app there is no need for the thumb drive
J

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

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19
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408
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Ben
9/21/23, 6:14 AM

You have the correct understanding. If you like 5% hysteresis, (restart at 95% SOC) you program ...
H

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

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6
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117
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Rick
9/17/23, 1:08 PM

and here is a link to a sample single relay Active BMS wiring diagram that might of interest htt...
J

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

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11
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364
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Jamie
9/8/23, 6:31 PM

Yep... I was confused.To share my confusion in a way which may help others... when I originally r...
M

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

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5
Posts

156
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Rick
8/10/23, 8:25 AM

The EVE cells are proving to be a good cell and so long as they are well matched you shouldnt hav...
M

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

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2
Posts

97
Views

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Ben
8/10/23, 4:47 AM

The GX is not the device that calculated the "remaining time". In setup with a Victron shunt, or...
M

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

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8
Posts

202
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Miro
8/2/23, 6:18 AM

I know, that when I will install the inverter I need the precharge module. I just wanted to be su...
M

New firmware version not allowing configuring of Relay 1?
5/27/23, 11:21 PM • Matthew 8/2/23, 6:06 AM

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6
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155
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Ben
8/2/23, 6:06 AM

@Mattahh you have a WIFI module now? relay 1 the cable is labeled as CH (charge) The M...
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From what serial number did REC Active BMS get the CAN BUS module?
6/1/23, 4:14 AM • Steinar 6/12/23, 4:53 PM

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94
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Steinar
6/12/23, 4:53 PM

Tanks for info and how to check. I opend the box and found the ISO1050 at (U5).
c

what is the balancing capacity?
5/16/23, 5:03 AM • carl 5/17/23, 3:12 AM

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3
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79
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carl
5/17/23, 3:12 AM

I slowly see the lowest voltage rising. From my calculations, the balancing current per cell can ...
J

Error 10 - Did I bork my BMS?
12/5/22, 1:40 PM • Jeremy 4/26/23, 12:44 PM

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6
Posts

312
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Rick
4/26/23, 12:44 PM

Those fuses protect the highly sensitive ADC circuitry and wires can not be connected or removed ...
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2 pcs A-BMS on same CAN-BUS network.
4/16/23, 4:04 AM • Trond 4/20/23, 2:25 AM

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2
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66
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Trond
4/20/23, 2:25 AM

I did get an reply from Tine about this. And from my understanding all BMS`s send ID 0x3.. ...
b

TMIN - Under-temperature charging disable (firmware v 2.6)
3/16/23, 7:55 AM • bonsys 3/16/23, 9:16 AM

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4
Posts

64
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Richard
3/16/23, 9:16 AM

No, its a setup screen in the \"Tasks\" tab of the WiFi module, with several parameters and alarm...
W

Connecting REC wifi module to the outside world?
3/4/23, 9:08 AM • WILLIAM 3/4/23, 9:57 AM

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4
Posts

130
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Richard
3/4/23, 9:57 AM

Thanks for your kind words. We have several more detailed videos in the works too. Think of p...
S

PROBLEM WITH SD CARD, LOGGING IS DISABLED
1/17/23, 9:29 AM • SV 1/26/23, 4:34 AM

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2
Posts

147
Views

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Ben
1/26/23, 4:34 AM

You can reset the wifi, holding the switch in the wifi unit 20 seconds?? (I dont ave the exact in...
R

bms 10 red led flashes,
1/17/23, 10:23 AM • Ronald 1/23/23, 9:34 AM

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3
Posts

166
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Ronald
1/23/23, 9:34 AM

Thanks for the reply you are correct i replaced the bms and bingo was online. Now the next cha...
R

RS-485 DB9 Connector Pin Assignments
8/30/22, 12:48 PM • Rich 12/8/22, 7:45 AM

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4
Posts

692
Views

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skrap
12/8/22, 7:45 AM

Has anyone found an alternative RS485 to USB cable/adapter for the REC-BMS? I was hoping to buy ...
A

REC ABMS not recharging after reaching full charge
10/20/22, 5:11 PM • Adam 10/27/22, 10:13 AM

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7
Posts

620
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Adam
10/27/22, 10:13 AM

I turned the MP3k back on and it did eventually begin to ramp down, however my cells were driftin...
A

REC Pre-Charge module manual and/or wiring diagram
10/24/22, 9:06 AM • Adam 10/26/22, 9:53 AM

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3
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304
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Richard
10/26/22, 9:53 AM

Awesome, I can take it off of my Todo list :)
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2 REC Active in Parallel batteries
4/30/21, 6:40 AM • TAS 10/26/22, 5:56 AM

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15
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3.4k
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Richard
10/26/22, 5:56 AM

That was a typo. The REC Active BMS is a standalone unit and if it were to be installed in a par...
D

ABMS to control alternator field with a twist
10/9/22, 6:21 AM • David 10/21/22, 2:36 PM

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10
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406
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Richard
10/21/22, 2:36 PM

David, I think this post may help with your questions. https://www.offgridsoftwaresolutions...
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ABMS with Smart Shunt
10/6/22, 1:49 PM • David 10/13/22, 5:33 PM

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5
Posts

369
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David
10/13/22, 5:33 PM

For the record, it is possible to drill and tap the back side of a Victron shunt to accept additi...
R

Small Boat BMS/LFP with Backup
9/29/22, 6:40 PM • Rick 10/3/22, 12:12 PM

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13
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710
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Rick
10/3/22, 12:12 PM

Revision 10-04-2022 which is 99% there.
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Regarding CAN bus regulated charging.
7/5/22, 2:47 AM • Trond 9/28/22, 2:06 PM

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28
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3.2k
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nebulight
9/28/22, 2:06 PM

mine is my username at gmail .com If you want to send them over. I sent REC an email but still wa...
n

Active BMS Fireware updates?
9/24/22, 4:29 PM • nebulight 9/26/22, 12:26 PM

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5
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384
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nebulight
9/26/22, 12:26 PM

Thanks for the explanation. I\'ve reached out to them. Thank you!
n

REC-BMS and Wakespeed on BMS-CAN on Cerbo?
9/22/22, 10:50 AM • nebulight 9/26/22, 5:08 AM

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3
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373
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Richard
9/26/22, 5:08 AM

You beat me to it. With the new integration of the WS500 it now needs to be connected on the VE ...
P

Adding a pin to the main connector
2/21/21, 10:39 AM • Patrick 8/17/22, 11:36 AM

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12
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2.1k
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Lindsay
8/17/22, 11:36 AM

Does anyone have a wiring diagram for the ABMS and the REC BSLRD and the Blue Sea 7713? thank...
P

ABYC and REC
8/12/22, 6:41 AM • Paul 8/12/22, 6:41 AM

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1
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385
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Paul
8/12/22, 6:41 AM

As I read the ABYC requirements there seems to be a need for an Alarm before disconnect, and poss...
s

controlling CERBO GX with REC BMS hibernate switch?
6/29/22, 11:16 AM • salvey 6/29/22, 11:16 AM

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9
Posts

962
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Richard
6/29/22, 11:16 AM

From Tine at REC BMS head office: It is programmed as a charge control, but we can custom re-p...
M

REC active BMS wiring harness wired wrong?
6/25/22, 3:31 PM • Matthew 6/25/22, 3:36 PM

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2
Posts

451
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Richard
6/25/22, 3:36 PM

Yes, it\'s not clear but that image is from the wire side, not the pin side of that connector.
J

Two \"Mechanical\" Questions
6/13/22, 1:00 AM • Jamie 6/13/22, 3:45 AM

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6
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1.2k
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Eboat
6/13/22, 3:45 AM

I share salvey’s befuddlement with the lack of female receptacles for the male connector screws o...
J

Settings: Chemistry, Strings & Voltage
1/29/22, 10:47 AM • Jamie 5/31/22, 8:13 PM

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10
Posts

1k
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Richard
5/31/22, 8:13 PM

A \"Cycle\" is determined as having been completed by the BMS when the cell pack goes from relati...
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LCD Screen Extension Cable
5/14/22, 9:37 AM • SV 5/16/22, 5:52 AM

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2
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600
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Richard
5/16/22, 5:52 AM

Yes, something like this should do the trick. https://www.amazon.com/StarTech-com-Black-Straig...
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Configuring REC Active BMS using only the WIFI Module
4/15/22, 8:34 PM • Rich 4/17/22, 3:43 PM

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3
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1.1k
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Rich
4/17/22, 3:43 PM

I knew I was missing something. Thanks so much for the prompt response - especially on a holiday...
J

Status of Contactors & Etc.?
3/20/22, 4:47 PM • Jamie 3/23/22, 7:47 PM

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3
Posts

720
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Jamie
3/23/22, 7:47 PM

Thanks. Do you think you\'ll add status of contactors to the WiFi interface? Seems overkill to...
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REC Active BMS problems
3/19/22, 7:56 AM • BretS 3/20/22, 6:27 AM

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1.9k
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Richard
3/20/22, 6:27 AM

It was starting to sound like that was one of the issues. We sell the software and cable at ou...
e

REC Active Manual Errata?
3/3/22, 2:55 PM • edwardc 3/3/22, 3:28 PM

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2
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696
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Richard
3/3/22, 3:28 PM

The diagram on page 7 is correct. All wire numbering is correct on both pages but on page 8 the ...
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REC Active BMS: Charge and Load Disconnect similar to VE.Bus
2/16/22, 6:35 PM • Sebastian 3/3/22, 3:02 PM

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6
Posts

3k
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Richard
3/3/22, 3:02 PM

Hi Gary, In a 24V system you would use the REC Q Series BMS to provide the following functiona...
J

Resetting Active BMS?
1/31/22, 3:15 PM • Jamie 2/1/22, 6:19 PM

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1k
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Jamie
2/1/22, 6:19 PM

Thank you Rick. Much appreciated.

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no Tacho even with forced tachomode

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ABMS/2Q firmware with additional CAN messages

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REC Active BMS

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

How to download firmware 9/30/23, 1:26 PM • John 10/7/23, 10:58 AM

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

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

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

Beginners Questions about my 2P4S setup 8/4/23, 9:20 AM • Miro 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 8/10/23, 4:47 AM

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

New firmware version not allowing configuring of Relay 1? 5/27/23, 11:21 PM • Matthew 8/2/23, 6:06 AM

From what serial number did REC Active BMS get the CAN BUS module? 6/1/23, 4:14 AM • Steinar 6/12/23, 4:53 PM

what is the balancing capacity? 5/16/23, 5:03 AM • carl 5/17/23, 3:12 AM

Error 10 - Did I bork my BMS? 12/5/22, 1:40 PM • Jeremy 4/26/23, 12:44 PM

2 pcs A-BMS on same CAN-BUS network. 4/16/23, 4:04 AM • Trond 4/20/23, 2:25 AM

TMIN - Under-temperature charging disable (firmware v 2.6) 3/16/23, 7:55 AM • bonsys 3/16/23, 9:16 AM

Connecting REC wifi module to the outside world? 3/4/23, 9:08 AM • WILLIAM 3/4/23, 9:57 AM

PROBLEM WITH SD CARD, LOGGING IS DISABLED 1/17/23, 9:29 AM • SV 1/26/23, 4:34 AM

bms 10 red led flashes, 1/17/23, 10:23 AM • Ronald 1/23/23, 9:34 AM

RS-485 DB9 Connector Pin Assignments 8/30/22, 12:48 PM • Rich 12/8/22, 7:45 AM

REC ABMS not recharging after reaching full charge 10/20/22, 5:11 PM • Adam 10/27/22, 10:13 AM

REC Pre-Charge module manual and/or wiring diagram 10/24/22, 9:06 AM • Adam 10/26/22, 9:53 AM

2 REC Active in Parallel batteries 4/30/21, 6:40 AM • TAS 10/26/22, 5:56 AM

ABMS to control alternator field with a twist 10/9/22, 6:21 AM • David 10/21/22, 2:36 PM

ABMS with Smart Shunt 10/6/22, 1:49 PM • David 10/13/22, 5:33 PM

Small Boat BMS/LFP with Backup 9/29/22, 6:40 PM • Rick 10/3/22, 12:12 PM

Regarding CAN bus regulated charging. 7/5/22, 2:47 AM • Trond 9/28/22, 2:06 PM

Active BMS Fireware updates? 9/24/22, 4:29 PM • nebulight 9/26/22, 12:26 PM

REC-BMS and Wakespeed on BMS-CAN on Cerbo? 9/22/22, 10:50 AM • nebulight 9/26/22, 5:08 AM

Adding a pin to the main connector 2/21/21, 10:39 AM • Patrick 8/17/22, 11:36 AM

ABYC and REC 8/12/22, 6:41 AM • Paul 8/12/22, 6:41 AM

controlling CERBO GX with REC BMS hibernate switch? 6/29/22, 11:16 AM • salvey 6/29/22, 11:16 AM

REC active BMS wiring harness wired wrong? 6/25/22, 3:31 PM • Matthew 6/25/22, 3:36 PM

Two \"Mechanical\" Questions 6/13/22, 1:00 AM • Jamie 6/13/22, 3:45 AM

Settings: Chemistry, Strings & Voltage 1/29/22, 10:47 AM • Jamie 5/31/22, 8:13 PM

LCD Screen Extension Cable 5/14/22, 9:37 AM • SV 5/16/22, 5:52 AM

Configuring REC Active BMS using only the WIFI Module 4/15/22, 8:34 PM • Rich 4/17/22, 3:43 PM

Status of Contactors & Etc.? 3/20/22, 4:47 PM • Jamie 3/23/22, 7:47 PM

REC Active BMS problems 3/19/22, 7:56 AM • BretS 3/20/22, 6:27 AM

REC Active Manual Errata? 3/3/22, 2:55 PM • edwardc 3/3/22, 3:28 PM

REC Active BMS: Charge and Load Disconnect similar to VE.Bus 2/16/22, 6:35 PM • Sebastian 3/3/22, 3:02 PM

Resetting Active BMS? 1/31/22, 3:15 PM • Jamie 2/1/22, 6:19 PM

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Latest topics

no Tacho even with forced tachomode

EEprom memory corruption - shutdown

rec bms and victron multiplus 3000 12v and cerbo gx will not go into float mode

WS500-PRO & REC Active BMS config.json

ABMS/2Q firmware with additional CAN messages

Latest posts

no Tacho even with forced tachomode

ABMS/2Q firmware with additional CAN messages

ABMS/2Q firmware with additional CAN messages

ABMS/2Q firmware with additional CAN messages

ABMS/2Q firmware with additional CAN messages

Forum statistics

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Andre

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Most liked authors

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

How to download firmware
9/30/23, 1:26 PM • John 10/7/23, 10:58 AM

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

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

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

Beginners Questions about my 2P4S setup
8/4/23, 9:20 AM • Miro 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 8/10/23, 4:47 AM

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

New firmware version not allowing configuring of Relay 1?
5/27/23, 11:21 PM • Matthew 8/2/23, 6:06 AM

From what serial number did REC Active BMS get the CAN BUS module?
6/1/23, 4:14 AM • Steinar 6/12/23, 4:53 PM

what is the balancing capacity?
5/16/23, 5:03 AM • carl 5/17/23, 3:12 AM

Error 10 - Did I bork my BMS?
12/5/22, 1:40 PM • Jeremy 4/26/23, 12:44 PM

2 pcs A-BMS on same CAN-BUS network.
4/16/23, 4:04 AM • Trond 4/20/23, 2:25 AM

TMIN - Under-temperature charging disable (firmware v 2.6)
3/16/23, 7:55 AM • bonsys 3/16/23, 9:16 AM

Connecting REC wifi module to the outside world?
3/4/23, 9:08 AM • WILLIAM 3/4/23, 9:57 AM

PROBLEM WITH SD CARD, LOGGING IS DISABLED
1/17/23, 9:29 AM • SV 1/26/23, 4:34 AM

bms 10 red led flashes,
1/17/23, 10:23 AM • Ronald 1/23/23, 9:34 AM

RS-485 DB9 Connector Pin Assignments
8/30/22, 12:48 PM • Rich 12/8/22, 7:45 AM

REC ABMS not recharging after reaching full charge
10/20/22, 5:11 PM • Adam 10/27/22, 10:13 AM

REC Pre-Charge module manual and/or wiring diagram
10/24/22, 9:06 AM • Adam 10/26/22, 9:53 AM

2 REC Active in Parallel batteries
4/30/21, 6:40 AM • TAS 10/26/22, 5:56 AM

ABMS to control alternator field with a twist
10/9/22, 6:21 AM • David 10/21/22, 2:36 PM

ABMS with Smart Shunt
10/6/22, 1:49 PM • David 10/13/22, 5:33 PM

Small Boat BMS/LFP with Backup
9/29/22, 6:40 PM • Rick 10/3/22, 12:12 PM

Regarding CAN bus regulated charging.
7/5/22, 2:47 AM • Trond 9/28/22, 2:06 PM

Active BMS Fireware updates?
9/24/22, 4:29 PM • nebulight 9/26/22, 12:26 PM

REC-BMS and Wakespeed on BMS-CAN on Cerbo?
9/22/22, 10:50 AM • nebulight 9/26/22, 5:08 AM

Adding a pin to the main connector
2/21/21, 10:39 AM • Patrick 8/17/22, 11:36 AM

ABYC and REC
8/12/22, 6:41 AM • Paul 8/12/22, 6:41 AM

controlling CERBO GX with REC BMS hibernate switch?
6/29/22, 11:16 AM • salvey 6/29/22, 11:16 AM

REC active BMS wiring harness wired wrong?
6/25/22, 3:31 PM • Matthew 6/25/22, 3:36 PM

Two \"Mechanical\" Questions
6/13/22, 1:00 AM • Jamie 6/13/22, 3:45 AM

Settings: Chemistry, Strings & Voltage
1/29/22, 10:47 AM • Jamie 5/31/22, 8:13 PM

LCD Screen Extension Cable
5/14/22, 9:37 AM • SV 5/16/22, 5:52 AM

Configuring REC Active BMS using only the WIFI Module
4/15/22, 8:34 PM • Rich 4/17/22, 3:43 PM

Status of Contactors & Etc.?
3/20/22, 4:47 PM • Jamie 3/23/22, 7:47 PM

REC Active BMS problems
3/19/22, 7:56 AM • BretS 3/20/22, 6:27 AM

REC Active Manual Errata?
3/3/22, 2:55 PM • edwardc 3/3/22, 3:28 PM

REC Active BMS: Charge and Load Disconnect similar to VE.Bus
2/16/22, 6:35 PM • Sebastian 3/3/22, 3:02 PM

Resetting Active BMS?
1/31/22, 3:15 PM • Jamie 2/1/22, 6:19 PM