Hello Eboat, Thanks for the reply. I will try this response once again. I did try as you suggested using the 250kb/s selection. I assume if it worked I would find the REC BMS on my device list? ...

Listen to the boot up of the BMS. When I do I hear 2 separate clicks indicating the relays are functioning. If that is working, Using the wires from the main connector, Tie pin 5  (fused input to r...

Here are some good troubleshooting tips for no voltage to contactor. (Re-posted from Tine Email:) Is the Discharge relay fused input connected to battery 12V and NO to the pre-charge BMS inpu...

You can in fact use the 500kb/sec CAN settings, but you need to change this via the control software: CANF 2

As the subject notes,  I cannot seem to get the BMS to send out any voltage to close my main contactor.  I am using a Pre Charge module and I have the lead going to Pin 4 wired to \"BMS INPUT\" on ...

Patrick,  if you look in the REC Active Victron/Wakespeed specific manual, there is a section that outlines the settings that you need to make to get it working.  One thing I did find is that the i...

Hello, I have recently integrated a Victron Cerbo device that provides a lot of usable information to the Victron products that I have connected to it. Can anyone discuss the steps I need to take t...

Hey Cory, This alt wires right up to the WS500.  You should have received the quick wiring guide but if not its available at this link. https://www.offgridsoftwaresolutions.com/wp-content/upl...

Hey Cory, the server is down and you will need to use the registration file we emailed you to install the key.  If you were not able to get it to unlock the app just let us know and we will get you...

Hello, I get an error that says i cannot connect to the application website. Check your network connection and try again. I ran the app as admin. Does anyone have a fix?

Hello, does anyone have any wiring diagrams or examples on how to wire the XT 170 to P harness. Just want to check mine.   thx.

Nothing is jumping out at me here Patrick.  My reference to battery pack cable lengths only applies if you have multiple groups of cells, like in a 2P4S 2P configuration.  Because you only have a s...

Okay, great. So sounds like the SI has no advantages whatsoever for my setup. Thank you!

Yes, it does. and no, the Wi-Fi adapter will only allow monitoring and configuration changes.

Does the Q series unit you have also have the \"\"soft\" disable your inverter and charger before initiating a hard relay trip.  In addition it has some cool PV logarithms.\" that you mentioned abo...

Same unit, different firmware!  And we stock the Q series, whereas we would need to send you the SI firmware to be installed using the PC software app, if you wanted the SI unit.

Unfortunately that won\'t be possible for me since my van already comes with two alternators from the factory, and they are both 12v and interlinked together (it\'s a 2021 Ford Transit). So I am st...

Thats fine, its why I mentioned adding a second alternator, possibly in the future.  Often you leave your factory alt. to maintain your cranking batteries but if you have a good sized LFP bank you ...

Thank you. Unfortunately my battery pack is 24v and my alternators are 12v (the van comes with two alternators and I cannot replace them or add a third one) so I am not sure the WS500 would be poss...

For your installation we would suggest the Q Series, as it includes both communications for the Victron as well as the WS500, should you ever want to look at upgrading or adding a second alternator

To follow up on this, for a mobile (Van/RV) installation that has a 16 cell LiFePo4 pack, Victron Multiplus 3000,  SmartSolar MPPT 100/30 and CerboGX, would you recommend the Q or the SI? Thank ...

Thanks Rick, Unfortunately because of the physical locations of the batteries on the boat, my charge/discharge cables are at different lengths. No way around that. They are 4/0 cables, which wil...

It looks like you have a good start on your project.  Nice one. Yes, you can cut the wires, but NEVER while the BMS and cells are connected, as this will damage the BMS. Try to keep all of yo...

Hello I am starting to build my diy battery drop in box. It is designed to drop into a 8D fiberglass battery compartment. I assume it’s ok to cut most wires to make the build a bit cleaner. I wi...

So it\'s only a firmware upgrade? Hardware is the same. That\'s great news.  

Sorry, I thought I had answered that in the original email.  If you purchased your unit recently it should be the same, it just needs to have its firmware updated to the new version using your REC ...

My question was more.... What is the difference between the 2 actual ABMS units. If someone has the non victron one, and you state it only works with the victron abms. What can be done. ...

Hi Kenny, The advantage is that the REC will treat the WS500 as a charging device and start to modulate it down as it nears a bank or cell full voltage condition. This has two advantages.  It...

What is the difference between the victron and non abms version of a REC BMS?   Posted on behalf of Kenny

Hello Can you please tell me if the switching channel in the REC signal lines labeled DHC F & DHC NO can directly drive the Tyco EV200AAANA without blowing the BMS internal slow blow fuse? T...

Thanks for your reply. Yes I understand and think my small battery capacity can alter the effect of the algorithm as compared to what I will have on the boat. I do realize they measure SOC by two d...

You need to remember that the SOC is a calculated value based on several variables and if you have a zero calibration error it can get out of tune very quickly with as little as a 0.5% error.  Furt...

Hello I am still learning about the 4S REC BMS. My question this time is related to the SOC. I question the accuracy of the process used to determine the SOC. For instance, I charge my small 20 ...

During our last system upgrade our software licensing integration failed so we are now when you order the WS500 Config app, we will be sending you a registration file that will install the key for ...

Quote from Blaine Kubesh on February 23, 2021, 7:38 pm Regarding the 7amp  max draw when switching.  That current craw comes from the 15Amp fused power supply (red wire), *NOT* the NO (brown) or N...

Regarding the 7amp  max draw when switching.  That current craw comes from the 15Amp fused power supply (red wire), *NOT* the NO (brown) or NC (orange) switch circuit.  So I don\'t think the BMS in...

Thanks Blaine, very helpful information.

An even better solution is to use Blue Sea Systems 7713 or 7718 which operates like a Normally-Open RELAY,  instead of the 7700 which needs a special circuitry to connect.   It appears the 7713/771...

I found a solution for adding pins.  Since I am not using all the OPTO wires in the harness,  remove two of those and move them to the RELAY NC pins on the AMPSEAL connector.   Detailed Instruction...

I am running into this same issue.  Was planning to connect the Relay NC wire to drive the  bistable relay per the cruiserforum schematic . I am surprised the Relays NC wire was not populated in th...