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Assuming your talking lifepo4 most guys run 55.2 (3.45 per cell) for absorption and 54 float. Hopefully this answers your question.

They told me if I want to monitor the master I can use the Bluetooth but otherwise no plans to ever fix this for upcoming new bms'es.

Ok thank you, about to order another box from them ill be sure to voice my opinion to the salesman that prob won’t care lol.

Has anyone figured this out?

Update, used the can dip switch settings and for some reason had to reboot my cerbo and I have data! My only problem now is that battery #3 won’t show up on the computer software but shows on the can system in the vrm, I’m hopeful that the update to 2.8 will resolve this.

I tried that as well, I have 2 10C version and 1 10E version bms. They are all running ver 2.7 I’m going to try to get them to this new 2.8 and hope that does something, seems that’s what everyone else that’s working is using for firmware version.

Yes I wired it exactly to this

Still no luck, I don’t see any sent or received packets either

Thank you for that, that forum had the wire diagram for that cable I will try to make that and post back

Using standard cat cable from master seplos bms can to victron bms can

Trying to connect my victron multi ii’s to my seplos mason batteries, it won’t pop up on the cerbo has anyone had this or know if I am missing something?

Good to know thanks for the info. In configuration I only ever go to 3.45 per cell. I have 3 other 280ah 48v packs that I did test this way (didn't know better at the time). These other cells hit .10 in roughly an hour unlike these that cant hit 1ah in 2. It was just an observation I thought...

Some of the cells wont even absorb with a 1A cut off current. I stop it before the timeframe gets too long but just thought this experience was abnormal from my previous testing and other tests online.

A lot of guys including myself used Unistrut it works well and is readily available.

Not needed but just thought it was unusual as every cell before that would absorb in a couple hours to the threshold.

Not really concerned per say but was wondering if anyone else has had issues when testing, specifically the charging cycle, if it ever got out of absorption at 3.6v with a .10a cutoff? I have ran 48 different cells on this tester now and this is the first time it wouldn't hit the .10a cutoff it...

Thanks for the reply, I basically told the seller this and he referred me to roypows customer service so you know this will be a fun one.

So I bought this roypow 48v 56ah battery used on ebay in non working condition, the seller stated that the cells were still good and that it had a faulty bms. Unfortunately all the cells were drained to nothing. I did try to charge them slowly and am still in the process but more than likely are...

Great info, thanks for sharing.

Have that in my cart, based on my math it should work if the only load I had was the ac but if I was running a mini split and or water heater I'm almost positive it will kick out the inverters, or at the very least create a voltage drop. The plan will be to install one as soon as I get some more...

I would be interested if anyone has used these and how they liked it and ease of install.

I could do that but I would need to completely rewire my main panel and power in. This is probably the best way but want to make sure I'm not missing an easier solution.

Trying to determine what the best route for transferring loads as the solar production starts to increase with spring around the corner. I have 9.6Kw Victron inverters, 6.4kw solar and 41kWh of battery that will power my whole home when there is enough solar but I need to be able to transfer...

Thanks Dexter.

I have 3, the fans can be somewhat loud but not obnoxious. Seems fan comes on somewhere around the 700w mark but I'm sure it will vary with ambient temp. Where are you seeing that on the website? I have been In contact with Victron about this and to my knowledge they are working on it but it...

Getting a voltage sag to 113 is this any room for concern?

After more testing I would agree with you that 5500w is probably the max surge on these. My car lift pulls 52a per leg which is 6200w and the lights dim pretty good for a second.

I should have specified what the inrush was on, whoops. That was on the air compressor as a test. I’m currently running 1 9k 120v cooper and hunter and 1 24k MRCOOL diy full time on this setup, there’s is no surge with the inverter style dc compressor. Only consideration is total wattage pulled...

Here you can see the inrush is 51.4 ac amps which is about 1.5x the wattage of the inverter. Occasionally the overload light would flash briefly but voltage stayed stable.

I doubt this is accurate but this says the surge is only 4.3. I have looked into those, that may be the route I go especially since it looks like it would be pretty close with the reduction the soft start does. It would suck to do it and still not be able to start it tho.

I know these aren't UL listed yet which is unfortunate but sounds like a new version of it will be within a year. Where did you find 2x for 20 seconds? that was while running around 600w on that phase as well I forgot to mention. Maybe it was just them growatts, Average Joe on youtube used...

I am currently using 2 Victron Multiplus II in a split phase configuration. I have started the workings of being able to back feed my main panel in a power out situation (temporary only). I'm a little over a year into this build and I am almost content with its current state and performance. At...

How much is considered normal and what was your results?

How do you test the low discharge? just leave them and test them weeks or so later?

There is a lot of talk right now about these cells and capacity. Word is all these cells are under by a small margin, hopefully they hold that same amount as long as they are suppose to and we aren't seeing some quick acting degradation.