With many customers now using the Nissan leaf 6.6V 2x2 cell packs we have put together a sample wiring diagram for 1P and 2P installations. Feedback and input would be most welcome. You can find ...

@Geoff  Thanks for the note about the missing precharge wire.  Its now been added and the sketch updated. You can download it here:    https://rec-bms-na.com/download/31/...

Rick, Thanks for the feedback. The only diagram I could find that uses the V3 pre-charge is: https://rec-bms-na.com/download/31/rec-active-bms-sketches/1290/rec-active-bms-wiring-diagram-rec-acti...

If you have a Cerbo connected to your REC BMS and have your CANBus connected with CVCC/DVCC mode enabled most of this can be done automatically by the BMS.  It will even throttle back the Sola...

I'm currently planning our my upgrade to Lithium from Trojan T105s and am wondering which pins on the REC Active BMS should connect the following to:- Victron Battery Protect (for charge disconnect...

I am installing a Rec Active BMS and I am concerned about the Can-Bus wiring or compatibity with my Xantrex Freedom SW3012 Charger/Inverter. Is this a direct plug in or will I have to build the RJ4...

I'm running Venus OS on an RPi4, using the inexpensive Innomaker USB to CAN cable to talk to the REC Active BMS.  Works perfectly.  Available on Amazon: https://www.amazon.com/gp/product...

I am a newbie at this. The system descibed above is for my sailboat. It has three alternators that are managed by Wakespeed WS500 smart regulators, 3 separate REC Bms systems that are used to cont...

Can I connect my (3) REC-BMS+Wakespeeds WS500 to a single CERBO GX or do I need one for each battery system. My setup will be have three LiFePO4 battery systems:  1. 12v generator start batt...

Here is a copy of their warranty.  For items purchased from OGM in America we honor it directly for you. https://rec-bms-na.com/download/7/manuals-and-firmware-updates/1445/rec-warranty-terms...

in a parallel high current Master slave config, each slave controls and monitors its own pack and if an error is detected in that pack it will shut down and any remaining packs will continue to pro...

What is the warranty policy on REC devices? I can't find the information online.

I'm planning a build using 2x16S batteries for a catamaran. Each battery should be redundant from the other one, and if one fail, the other one should remain available.I want to know what is the fa...

We did this sketch a while back for our customers.  Hope it helps    

A few weeks ago I received 1 REC Master 9M and 3 of the new REC2Q Slave units for a 12V 3 parallel bank installation directly from REC in Slovenia. They also included the RS485 cable from the Mast...

From page 25 of the manual. and dont forget, it will take a few cycles to zero in on an accurrate SOC. And it need the Capacity setting to be input (CAPA) And you can manually override the SOCS p...

I'm brand new to this and still learning. So far, I've accepted the default settings to make sure everything is working. I am using CALB 230 Ah cells. 

@Bill Before a full charge SOC reading is not correct. When batterries are full, BMS will reset to 100%. Which charge voltage you like to apply to your batterries? Which "float" voltage? W...

I was hoping that someone can point me to the place in the manual that talks about the SOC being set to 100%? I just fired up a 1Q for the first time and recall reading but not sure where, the 100%...

@Chris yes, REC Active BMS. My system is 1120 ah, so only slightly over the recommended amount, but I have seen absolutely no issues. My feeling is that limit would only really be a factor if you h...

Hey Chris,  The Active BMS is designed to active balance up to 2A loads and we have actually seen installations with almost 2,000 Ah systems.

@Cedar Are you running the REC Active? Any issues exceeding the 1000ah recommendation? I ask because I was considering a 3P4S set up in a van build using the EVE LF304K cells, but the space th...

I have a 4p4s 1120ah system working perfectly for 24 months now. Eve grade A cells. My system hardly ever (never?) has to blance, cells stay in sync. Very very happy with my settup. Go for it with ...

I am looking for suggestions on how to mount the power switch in a small box without removing the pins from the connector.  

Hello.  <Disclaimer:  Al with Wakespeed> In 2.5.0 we indeed 'tightened things up' in support of some higher power 48v systems, but seems might have gotten things a little too tigh...

@Clarence  Hey Clarence, we lost your pics when we moved to a new platform and have some users asking to see them.  If you can find them, it would be great if you could post them again.&...

sure, just send me a request to support@ogm-energy.com And please keep in mind this a beta release and should be treated accordingly.

Rick, I am having the same issue with the "pulsing" charge.  Can you also send me the beta.      

sure, I will look for it and send you the file.  Please keep in mind this a beta release and should be treated accordingly.

sure, I will look for it and send you the file.  Please keep in mind this a beta release and should be treated accordingly.

That would be appreciated, I know I did not buy it from you, I have sent a technical query message with email. I will then get it installed if I get chance before winter.

If you need a copy of the BETA let me know and I will get you a copy for testing if you like,. Rick

Thanks for the update, I will hang on as things look good.

I installed a 2.5.1 beta back at the beginning of the summer.  The behavior of that version in acceptance mode is 'correct' - smooth and just what I'd expect.  In float mode the behavior ...

My question has to do with the temp here (Toronto), and how to best manage my batteries:  over the next couple of months, the average low is:  Dec -4,  Jan -7, Feb. -7 and March -3 (...

In early October Wakspeed released 2.5.1 Beta firmware update.  I havent had a chance to try it out myself yet but here are the release notes they sent us.  By way of this comment I am a...

Has anyone heard anymore of this issue, now 6 to 9 months old. I have also seen the reports elsehere and when I saw them from my background in process control I thought it was a controller tuning i...

Hello All, I'm using CALB 230 cells in a custom marine application and am hoping that more experienced people can provide some directional guidance.  Here are the particulars for my marine a...

Welcome to our User forum :) I have replied in blue below your questions: 1) Is there conter-recommendation or issue to using REC for parallel connectivity in general or at 48V, in particular? My...

@Ben @Bill good that it works. But looks like strange settings you made. Not sure or it is easy for you to do a test, or the "setcoil +". Or the "setcoil-" is the one that gives the trigger signa...