I used this figure from the REC ABMS manual on page 8 to help me.

I used the info from both of you. If you look at this drawing, you will see that: (1) Jumpered pins 3 and 4 on the Pre-Charge module, but am wondering if that is only required to use the active ba...

It looks like you are missing a jumper between pins 3 and 4 for your pack power.  I would try that first.

Hello Bill, System design is a choice from components. You didnt mention which ML relay you use. Looks like the ML 7700.  I didnt install this with the REC prechargeV3. But install them with...

Hi Peter, thanks for the feedback!

Dear All, I am wiring up a Blue Sea ML-RBS Remote Battery Switch with Manual Control - 12V DC 500A contactor with a REC-ABMS as recommened by my marine electrician. I have tested the contactor and...

Thanks, this is very good example. I will go back to the WS App and put in my values and then post them here for comparison and to see if I did it correctly.

I logged in to the REC BMS WiFi module today and suddenly saw a "PROBLEM WITH SD CARD, LOGGING IS DISABLED" message. SD Card info under the "Settings" tab shows this:       Wh...

I will try and illustrate this with an example. I have a battery bank of 750Ah. The maximum charge rate for my batteries is listed as 0.2C, so 0.2 x 750 = 150A. My battery bank is 750 ÷ 50...

I have been able to fully configure my WS500 using the Wakespeed app on my Android phone prior to installation. However, I habe not yet got the unit installed to test it.

another post to push this topic to the top of the list

from page 34 in the "Wakespeed-Communications-and-Configuration-Guide-v2.5.0-09.26.2022.pdf" "Defining Charging Voltages and Amps – All volts and amps used in the Charge Profile Entries are ...

I see that there are severval ways to communicate with the WS500. Can I assume that using the WS app on an Android will give me full access and no need to even bother with any of the other tools on...

As I am a newbie, it would be great to set up a section on the forum (perhaps at the top level, or at least pinned to the top of one of the main topics) where all newbie questions could be posted a...

it is free to download off of our REC North America site.  I already sent you a link to the downloads section in my first reply.  Just click on the REC Master Control zip file "Download" ...

There is a new 2.5.1 beta release of the WS500 that may help.  I havent had a chance to try it myself but I will send it via email for you to test.

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

Does soemone has a working setup with the REC2Q BMS and the WS500? Can you share your settings?   I dont get the communication established with the rec 2Q BMS.First time I installed this BM...

I guess my writting is not very clear. My question about the software is:  Can I download it off the web, or do I have to buy it?

Would anyone know what was the reasoning behind using RS485 connectors on the REC BMS vs. a RJ45? Also, could I cut off the RS485 and replace it with a RJ45?  This would make such a cleaner i...

Can I download the REC software from the web and use it without the REC thumb drive.  The thumb drive I was sent is corrupted. Thanks

You need to install and run the PC software tool first. You can download the software and install it like any other windows app. Once it is installed you can download the firmware update. Here a...

You need to install and run the PC software tool first. You can download the software and install it like any other windows app. Once it is installed you can download the firmware update. Here a...

When I open the thumb drive that was sent with the BMS, shouldn't  I find this (below) page? If not, where can I find it? Thanks

I have my electrical system all installed and ready to go except for two firmware downloads.  One is the REC-Active BMS and the other is the Wakespeed WS500. I am not very computer savvy when...

Folks, we have recently had some issues iwth posts being sent to all users and now users having problems posting.  We are looking into this and hope to have it resolved soo.

Hi. You were all correct, there WAS an bad connection on the solid red wire. It was impossible to see from the outside and even when pulling it, feeld snug. But I cut of the connector and crimpe...

Hello all, This is my first WS500 install. Steep learning curve but having fun... sort of... Setup: Denso style small case 12 volt 40 amp alternator, modified for external regulation by discon...

@Trond  <DISCLAIMER:  Al of Wakespeed> Hello.  As Ben pointed out, FLT 43 is indicating the WS500 has not sensed voltage on the solid RED wire, the one with the 15A fuse in i...

<DISCLAIMER:  Al of Wakespeed> Alan, You can use the DIPs to set basic configs for the WS500 -- works fine, but a bit rough granularity around the battery, and also no ability to adjus...

@Trond just a quick note, from thinks that come up my mind, without looking into detail.   What is the voltage on back off alternator? I think, the voltage at the red  wire, alternator...

Below is an log from when turning on ignition gives error #43. Seems like an internal HW error to me.       Sep-24-2023,08:56:38,0, ,AST;,0.02, ,13.07,6.9,6.9,90, ,14.30,490,150...

Hello. My WS500 has started giving Error 43, Alternator Low voltage. But the alternator voltage is just fine. AST;,0.00, ,13.06,-32.6,-32.6,-425, ,14.30,490,15000,10, ,25,33, ,0, ,13.06,26,-99,2...

I do not see the page snip.

You have the correct understanding. If you like 5% hysteresis, (restart at 95% SOC) you program 0.05. The standard, out off the box setting is 5%. You are right, if I share settings, it is bette...

Just checked the WS500 dip switches and you are correct, the small alternator mode dip switch was "On". At this point here are my switches: 1 - Off (House Battery) 2 - Off (House Battery) 3 - O...

Worked with the manual communication tool of the WiFi portal. Here's what it reported when I did the SOCH? query: "5.00000e-2" I'm a business guy, not a scientist so I assume this translates ...

@Ben@JamieAs I almost can not believe that the problem is in the WS00, can you clarify some off your wiring.   Where is the big alternator negative cable connected, the negative cable that g...

@Jamie  If you see 75 field drive, the alternator should produce amp.  Why your alternator don't produce amps is strange.   I don't see the logic why it starts produce amps after...