@Chris Hi Chris. I've planned to use Mahle MG1 48V 100A in my RV, just want to know the connectivity diagram from the WS500 to Mahle MG1. I've summarized the question need your input as following, ...

@Bill this is from Al Thomason, Chief Engineer on the WS500. Upon seeing the forum thread that I sent to him, he replied... ---- Fun!   We never added an external USB socket for two reason...

Ah, I see the time sisnce posting is shown in gray on th4 header bar.

Thanks Rick.  Good idea. Would it be feasible to add a datestamp to Fora postes?  This is a rapidly develooping area and  it would be valuable to be able to calibrate "Just released...

@Adam thanks!

There is not an easy way of coping them, so here are some screenshots:

@Adam can u share your bms settings pls?

@panagiotis So far: nothing. The issue stopped happening. I suspect the cells must be more closely balanced, now.

This will be handy for many customers. Thanks for taking the time to document this hack. :) To maintain IP67 a grommet might do the trick.  I always kept this cheap little kit onboard. https...

I note others have encouraged Wakespeed to incorporation an accessable usb port for the WS500 to take ongoing advantage of the phenomenal OGM WS500 Configuration and Dashboard tool. So I sourced a...

@Adam hi what did you do so far?

Hi Trevor,  Did you go through the quick start guide when you setup and select the Li-bms-ext setting on the Sunny Islands? Also have you adjusted the parameters on the BMS to match to the SM...

Since we're talking SMA, I'm going to follow this up with some comms issues with another system. 2Q BMS, 1.4 and 1.6.3 FW. We verified the battery communicated with our shop system (2x 6048-US-10,...

@Christopher , The max charge, float setting en recharge settings is just one example to get the system running. You can change this settings to the settings you like yourself.

@Ben Everything works very well.Thank you .

I can't ever rember a Master failing so we have never had one apart.   Grab a Torx#10 and slide off the cover.  If its like the BMS's look for a small black/brown approximately 1cm s...

Hi,  Have a Master BMS were the external fuse was blowed. Now the BMS will not start up. Is there any fuse inside the unit? Power supply is 48 V in to BMS.  

Thanks all, will keep you updated.

We're happy to help if we can.  Please send your serial # to support@ogm-energy.com and we will see what we can do for you.

Ok thank you i havent buy it from you but i have buy another things like wakespeed and more i will reach Rec head office thank you for your quick response 

If you purchased your equipment from us, we would be happy to take care of it for you, but if not you will need to contact REC head office and give them your serial# to request an updated bin file

Hi there i am interested also to silence the alarm i have also rec q Where can i get it?   thanks

@Ben "let us know the result with new settings." Of course, let's wait 24 hours, I can already see that your settings work better. "Maybe your old firmware didnt support CFVC, and you made not t...

The sun island capability for grid feeding is very limited. The system has to be setup as a battery backup ups rather than an off grid system.   Rick is correct re firmware causing issue...

You may want to consider adding one of these to allow your DD alt. help charge and top off/balance your pack while on the road :) https://ogm-energy.com/products/orion-xs

I will charge only with the magnum inverter charger when plugged in or with the 20kw genny running.    I have a 350amp 50dn alternator on the Detroit series 60 but will keep it out of ch...

We have quite a few customers with SMA grid tied systems so hoping they might be able to help here. One issue that came up recently was some firmware bugs in the SMA where it has problems communic...

Good catch Ben!  

yes, a 12P4S should work well for you.  Connecting the 12 cells in parallel is now commonplace, so long as you are working with fairly closely matched cells.  I think you will notice a go...

@Christopher I put your settings in a calculation sheet with the formulas from the manual. Result in: Bulk charge max 14.18V Float 13.08V Restart charging, if below 13.04.   If you volta...

It turns out that I was powering the WiFi module from the switched side of the contactor, and not the pack side.  After fixing that, the update worked perfectly.  Thanks to Rick and Tine ...

i am starting to work with trevor at higherwire. i want to make a 1200ah 12v setup for my coach. using 3.2v 100ah calb cells.    so would do 12 in parallel and then 4 of them in series....

We recently had a customer swap from lead to lithium to power their Sunny Island 6048s. They are grid connected and are no longer able to export to the grid, though they were able with lead. We ad...

Thank you very much for the older version, I already installed it. Regards

We just added it back to our REC NA website downloads.  Here is the link https://rec-bms-na.com/product-manuals/#7-8-wpfd-rec-active-bms

  Even though SOCH is correctly set to 95%, the system does not resume charging.Everything worked very well with the previous software. I updated to 2.92-2 and have problems.Where can I downl...

I’m having trouble updating the firmware on a newly purchased Rec Active BMS via a Wifi Module. The Rec Active BMS is 1A-2024, HW version 2.1,  currently running 2.90-1.   The...

Yes, I am not your client, I am REC d.o.o. Slovenia, but there I often don't get an answer.I read your furum and I see that there is excellent support and very nice people.Coming back to your quest...

We dont see you as a customer so I can't see what tool you are using for configuration but we are happy to help none the less. Not sure what the support comment was all about... The wifi module ha...

The maximum current that we can set in the REC Active BMS settings is 350A, I need to increase it to 500A.Can I count on support?