REC Active BMS

12V Active balancing BMS

120 Topics 2 Followers

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Cooked Nation's Alternator with Wakespeed/Victron/Rec Active BMS system. Need help troubleshooting BMS after replacement
6/10/24, 11:48 AM • W 6/10/24, 2:53 PM

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W
6/10/24, 2:53 PM

Well, I pulled the bms and checked all the fuses, which were all good. When I reassembled everyth...
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Cell Voltage, BMS, Error in Cell Voltage Reading and Sudden Voltage Drop
5/12/24, 6:05 PM • Trevor 5/31/24, 1:19 PM

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Rick
5/31/24, 1:19 PM

Ok Trevor, we can do that for you. Please contact us at support@ogm-energy.com and we'll ge...
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Erratic reading from current shunt
4/15/23, 2:26 PM • Darryl 5/20/24, 3:07 AM

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tine
5/20/24, 3:07 AM

Resistors are 330 Ohms. Maybe there is a bad connection from the cable to the crimp or fronm the ...
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BMS seems not doing the job after upgrade
5/3/24, 10:25 PM • Edward 5/11/24, 7:53 PM

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Edward
5/11/24, 7:53 PM

If 183Ah use, SOC should be only ±85%??? 100-(183÷1200x100%)
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REC Active BMS does not resume charging ?
4/16/24, 6:43 AM • Christopher 4/19/24, 6:57 AM

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Ben
4/19/24, 6:57 AM

@Christopher , The max charge, float setting en recharge settings is just one example to get the...
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BMS 12p4s setup
4/17/24, 12:04 AM • tom 4/17/24, 12:10 PM

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Rick
4/17/24, 12:10 PM

You may want to consider adding one of these to allow your DD alt. help charge and top off/balanc...
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difficulty updating the BMS to v2.92.1 using the WiFi module.
4/12/24, 7:40 PM • Stan 4/17/24, 12:06 AM

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Stan
4/17/24, 12:06 AM

It turns out that I was powering the WiFi module from the switched side of the contactor, and not...
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How to increase the maximum discharge current
4/12/24, 11:05 AM • Christopher 4/12/24, 12:16 PM

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Christopher
4/12/24, 12:16 PM

Yes, I am not your client, I am REC d.o.o. Slovenia, but there I often don't get an answer.I read...
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WiFi FW Temperature error Error in WiFi FW 1.62-12
3/12/24, 4:51 PM • Edward 4/8/24, 12:01 AM

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Edward
4/8/24, 12:01 AM

@Rick Thanks for the notice. @tine Thanks for the quick turnaround. I have downloaded and inst...
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Error in Firmware 2.9.2-2
3/26/24, 4:47 PM • Edward 3/26/24, 4:47 PM

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Edward
3/26/24, 4:47 PM

In my continuing regression testing of an existing two-contactor system (Charge Bus and Load Bus)...
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Opto Lines Driving Capability
3/13/24, 3:46 PM • Edward 3/13/24, 5:16 PM

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Rick
3/13/24, 5:16 PM

no, they are meant to drive something like an LED directly. If you want to drive a larger l...
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Can't remove micro SD card from WiFi Module
2/26/24, 3:26 PM • Edward 3/12/24, 4:22 PM

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Edward
3/12/24, 4:22 PM

After formatting the SD card and loading the spiffs and updates files onto it, and powering up wa...
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Hibernate on REC Actice BMS
1/24/24, 9:08 AM • andrew 1/25/24, 8:41 AM

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andrew
1/25/24, 8:41 AM

thank you
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How to manage state of charge while on shore power
6/28/22, 5:24 PM • Rich 1/22/24, 9:46 PM

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Richard
1/22/24, 9:46 PM

I've created a Node-Red flow that solves this problem perfectly. It has a dashboard interfa...
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Split Charge/Load busses setup
12/31/23, 4:25 PM • Ronald 1/4/24, 11:02 AM

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Ronald
1/4/24, 11:02 AM

I wonder if there is an issue with the module 2 precharge unit. The 6 pin descriptions are ...
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REC ABMS with split bus firmware - how to specify different discharge and charge temps?
12/26/23, 12:31 PM • John 1/3/24, 5:27 AM

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tine
1/3/24, 5:27 AM

Charge current is only set to 0 A when the temperature goes under the Under-temperature for charg...
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BMS Contactor Switch Contactor/Switch Options
12/12/23, 11:41 AM • Geoff 12/26/23, 5:39 PM

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Geoff
12/26/23, 5:39 PM

John,I considered the Blue Sea swtich - it's a good switch (I have one and like it), but for my L...
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Correct Firmware to use for Two Contactor Configuration
12/5/23, 3:54 PM • Edward 12/7/23, 4:03 PM

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Rick
12/7/23, 4:03 PM

In the 2.9.2 firmware update there is a file called bms_1A_Victron_v2_92_2_tasks.bin that should ...
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Downgrading firmware
12/5/23, 3:57 PM • Edward 12/7/23, 3:58 PM

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Rick
12/7/23, 3:58 PM

Yes, I have downgraded several times while testing with the PC software and RS485 cable, but have...
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Pin Connections
11/22/23, 1:07 PM • Geoff 11/26/23, 6:09 PM

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Geoff
11/26/23, 6:09 PM

Rick,Thanks for the update - things make more senses now!One question - on the updated diagram sh...
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REC ACTIVE BMS CAN-BUS Compatibility
11/15/23, 2:28 PM • Raymond 11/15/23, 2:28 PM

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Raymond
11/15/23, 2:28 PM

I am installing a Rec Active BMS and I am concerned about the Can-Bus wiring or compatibity with ...
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REC-BMS ABMS and Victron with Raspberry PI not Cerbo GX
8/16/22, 9:20 AM • Lindsay 11/12/23, 12:27 AM

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Edward
11/12/23, 12:27 AM

I'm running Venus OS on an RPi4, using the inexpensive Innomaker USB to CAN cable to talk to the ...
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Will it work? 3P4S @ 690ah
2/11/23, 2:22 PM • Rance 10/30/23, 8:12 PM

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Cedar
10/30/23, 8:12 PM

@Chris yes, REC Active BMS. My system is 1120 ah, so only slightly over the recommended amount, b...
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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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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 ...
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How to download firmware
9/30/23, 1:26 PM • John 10/7/23, 10:58 AM

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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
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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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Ben
9/21/23, 6:14 AM

You have the correct understanding. If you like 5% hysteresis, (restart at 95% SOC) you program ...
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Working up design -- multiple questions
9/12/23, 11:45 AM • Harry 9/17/23, 1:08 PM

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

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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...
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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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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...
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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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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...
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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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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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Steinar
6/12/23, 4:53 PM

Tanks for info and how to check. I opend the box and found the ISO1050 at (U5).
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what is the balancing capacity?
5/16/23, 5:03 AM • carl 5/17/23, 3:12 AM

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

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

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

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

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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 ...

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