REC has informed us a new REC BMS Firmware will be sent to us this next week for testing.  We (Wakespeed) will be looking at this behavior as well as other noted issues around REC.   The...

Hi Rick - thanks for your response.  I\'m running things the way you describe right now.  The \'parasitic\' load from the BMS/CERBO GX and relays is only 500mA or 6W so the 160W solar array is keep...

Has this been resolved?   I am experiencing this behaviour with my Rec Active integrated with my WS500.  Updated to the newest (non beta) firmware and I am still seeing the issue.  Makes me wonder ...

Hi Ben,  my setup is actually similar to Max’s.  I have a Rec Active BMS controlling the alternator via CAN bus.  When the charge gets to about 98% the tach starts bouncing, as does the charge curr...

Hi Ben, Thanks for your answer. I\'m not trying yet the $SCT test, I\'ll do in a couple of days. >you said: \"If your tacho stops, your batteries are probably full, there fore the alternator ...

I share salvey’s befuddlement with the lack of female receptacles for the male connector screws on the RS485 connectors.  Not only is the BMS relatively expensive, so to are all the additional modu...

I replace the REC on/off switch and extend the cable a few times. Also use another type off switch. The REC on/off switch is a NC type!!  

hello Massimiliano, If your tacho stops, your batteries are probably full, there fore the alternator stop charging, because this is the best for the batterer. See my explanation above. In most...

If you turn off most of your loads at the DC distribution panel, a few hundred watts of solar should allow you leave your DC electrical system \"in service\" while you are away.  The only loads in ...

I\'ve just built a power system for a 45\' sloop: 12V @ 560AH LFP battery; REC Active BMS Balmar XT250A alternator controlled by WS500 CAN regulator Victron Multiplus II inverter charger...

Hi Rick - I noticed the same issue when I received my BMS and cables.  I connected them together with two zip-ties; a cheezy but effective solution.   Question:  why do the cables not co...

I had a new engine installed this past winter, and I’m now experiencing my yacht bouncing around along with the current bouncing too.  I’ve checked connections, and everything appears solid, but no...

Start with 1%, then 2% etc until you get an reading. The minimum field% will even be active during the 30 sec default startup sequence of the WS500. I would not bother about RPM readings on I...

Yeah, I\'ve called and emailed before starting this thread. So far, no reply to either. I\'ll give that another try.

You may want to reach out to Wakespeed directly.  Here\'s the link to their contact information http://wakespeed.com/contact.html

Hmm... crickets on this? I bought the Wakespeed to solve this problem (switch to float early), replacing a Balmar 614. The Balmar did not have the hardware necessary to address it, the WS500 doe...

Trond, Yeah I remember very well that parameter ($SCT), even the advice not to overcharged the battery. Yeah, I\'ll test immediately tomorrow. Thank you so much for your help. Max

There is an mode for this called \"Tach mode\", search it up in the manual. I have set minimum field to 3% and this works perfect. But be careful as this could potentially overcharge the batt...

Hi all, I have the same problem as Rand, but I have a different setup. I\'m running on LiFePo4 and when the BMS send the command to the WS500 on the Featured-IN white cable, the WS500 stop wo...

Al, any thoughts on this one? @al-thomason

Quote from Trond Arvid Røsvik on June 7, 2022, 2:17 am Yes, but did you activate DVCC like its described in the REC Manual? Does your victron units indicate \"External Control\"? Yes and yes. ...

Yes, but did you activate DVCC like its described in the REC Manual? Does your victron units indicate \"External Control\"?  

Thanks, seems like this would be easy to fix (assuming I haven\'t broken it myself somehow). It would also fix another problem I have: Due to the topology of the boat wiring, the alternator is c...

Quote from Trond Arvid Røsvik on June 6, 2022, 3:10 am Also, if you setup your system using Victron chargers and CAN bus regulated charging this should also not be an problem. Can you please elab...

I would rather put more effort in finding out why Cell 4 needs so much balancing, does not seem normal to me. Also, if you setup your system using Victron chargers and CAN bus regulated charging...

Tested out V2.5 Beta and seems to be working just fine. I am running BMS controlled charging with REC A-BMS.   Now Victron just needs to add more widgets to the VRM portal from WS500....

Adding a fan interlock should be fairly easy.  You can use the opto output with a N/C relay.  This output is used to disable older chargers that are not on the CANBus, so by adding a N/C relay you ...

Hey Jon,  I have included Al from Wakespeed in this reply and hopefully he can give you some feedback on this one. @al-thomason

I\'ve been looking at and logging the data from the WS50o installed on my boat. It often (almost always) switches to Float from Accept early, and always due to a transient when a house load shuts o...

Quote from Trond Arvid Røsvik on June 3, 2022, 9:10 am Do you have the older version of the 16S BMS with flat top? The newer models have (small) cooling fins. Anyhow this could still happen. ...

Do you have the older version of the 16S BMS with flat top? The newer models have (small) cooling fins. Anyhow this could still happen. Putting an small fan close to the BMS will make the ala...

Quote from Trond Arvid Røsvik on June 2, 2022, 3:31 am Internal failure is due to excessive balancing and overheating of the BMS. Nothing to worry about really. How do we define \"excessive ba...

Has anyone successfully installed the Wakespeed Android App on Windowds 11? There seems to be options there now.. but  Amazon Appstore is only available in US.  

Version 2.5.0 (beta) is released now. (Not had the chance to test it myself yet). You will need Venus OS V2.90-10 also.   http://wakespeed.com/technical.html  

Internal failure is due to excessive balancing and overheating of the BMS. Nothing to worry about really. But if Cell 4 always needs balancing then that\'s not an good sign for the health of ...

The voltage graph during balancing a couple days ago: If I look at other balancing sessions, it appears it is always cell 4 that lags:

Quote from Tine Andrejasic on June 1, 2022, 5:52 am If the BMS has to work hard to balance the cells (new not pre-balanced cells or old cells ) it heats a bit over the set threshold. BMS only sign...

If the BMS has to work hard to balance the cells (new not pre-balanced cells or old cells ) it heats a bit over the set threshold. BMS only signals ERROR 5 by red LED, not sound alarm and sends int...

This is an interesting question.   My first thought would be to leave the BMS with its standard parameters and just reduce the settings on my shore power battery charger and MPPTs, but that may hav...

including Al in this last request for clarification @al-thomason