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...

and here are a few pics of what a Master/Slave system displays on a Victron Cerbo

for a 560Ah system, as long as you have well behaved cells, you can likely use a single 2Q BMS by connecting them in a 2P8S configuration. If you want a redundant system you will need 2 of the 2Q ...

Hello, I am looking to setup a LFP power system for a boat with 16 EVE LF280K cells configured in 8S2P for a total of 560Ah @24V and looking to use REC 2Q BMS for each 8 cell string. Can I j...

Yep, this is correct. After the lamp test, (disconnect blue, light lamp with blue and reconnect) the alternator worked well. I'm not sure why the 75% max. Here are my alternator settings via the a...

@Jamie some settings are not on the main settings page in the WIFI. They are not often changed.   This settings you can do with, manual programming, under settings tab.

@Jamie   Some extra info about your latest logfiles.In the logfile you AST. The values after AST are explained in the WS500 documentation. Values that I see, and important for you at the m...

Thanks agian for the help Ben. I updated the settings per your instructions and they seemed to work better see WS500 thread for logs. Though, I should note I didn't see an SOCH End of Charge Histo...

Thanks Ben. I'm just wrapping up at the boat and heading out. I'm hopeful I might have resolved things with your help. Here's the breakdown of efforts. WS500 WS500 Log 1Updated BMS settings to r...

@Jamie  All settings are described in the manual.Although I didn't check the latest manual.I agree that understanding the product, needs some time to study the parameters you can make.The flo...

Thanks Ben.Here's what I had for the 'original' recommended settings, which should be by current settings... I believe I posted them with a question earlier:Here's the new settings you posted earli...

I checked above and dont see the suggested setting. Maybe the post is deleted by mistake. try these settings. BVOL? balance END V   3.52BMIN? balance START V    3.45RAZL? MAX allow...

Hello Jamie,. I check your VRM. CVL is limiting the output from the WS500 at 13.4V.  I have posted suggested settings for you. After posting I recognised that there was an error in mine calc...

Thanks Ben. I'll be back at the boat tonight, and will run a few tests and create a log file.  I really wish the WS500 came with an external USB or Bluetooth connection so I didn't have to dis...

@Jamie  Low output, you made setting that field goes to max 75%. Probably you have select small alternator mode. This reduce the Max amps. If you see field 100%, alternator produce the Max ...

First overnight trip on the boat since all the troubleshooting, and it was super frustrating. When I left troubleshooting the WS500 as communicating with the alternator and the batteries were charg...

and here is a link to a sample single relay Active BMS wiring diagram that might of interest https://rec-bms-na.com/download/31/rec-active-bms-sketches/1290/rec-active-bms-wiring-diagram-rec-activ...

Now that we have the WiFi module there are new features available that allow you to custom configure the second relay and two opto outputs so this is how it goes: 1)  PC software only and two...

Wow.  Now I'm even more confused! A)  There appear to be two completely different firmwares -- with Victron/Wakespeed, and without.  I thought the differences were simply setpoints,...

Rick,   Thanks so much.  I was hoping you'd answer. 1)  If the single relay is standard now, are there any diagrams?  The manual still shows two, and talks about HVC and LVC ...

1)  Yes, a single relay is the standard way to go now "since many loads are now smart and the Active BMS comes configured for that operation, leaving 1 relay and 2 optos for additional custome...

I am preparing to install a LFP battery on a sailboat and am trying to pin down a BMS.  REC seems to be the best.  I have multiple charging sources that are fairly "dumb" with no CAN cont...