Pete's BMS Story - Regular updates with issues or excitement I find along the way.

There we go, don't know what happened - end of the day it's the same video I've spammed everywhere else everyone here is already .lol
 
I hope this is the right place to ask this question for Pete regarding the Batrium monitoring interface:

If I recall correctly you said that it can handle something like 250 LongMons all together. Is it possible to have it separatedinto 14 cell or 48v chunks to better tell where one group of cells end and then next begin?

In my planned setup I want to make individual 48v packs in the 1 kAh range each. I want to be able to easily see how each pack is doing so that if one is having problems I can unplug just that pack and service it leaving the rest of the packs up and running. My first thought is I would need a WatchMon for each pack but that can't be cheap so looking for the more economical solution here.

Hope this makes sense.

Thank you,
 
frasernator said:
I hope this is the right place to ask this question for Pete regarding the Batrium monitoring interface:

If I recall correctly you said that it can handle something like 250 LongMons all together. Is it possible to have it separatedinto 14 cell or 48v chunks to better tell where one group of cells end and then next begin?

In my planned setup I want to make individual 48v packs in the 1 kAh range each. I want to be able to easily see how each pack is doing so that if one is having problems I can unplug just that pack and service it leaving the rest of the packs up and running. My first thought is I would need a WatchMon for each pack but that can't be cheap so looking for the more economical solution here.

Hope this makes sense.

Thank you,
Click to expand...

It kinda does.

You don't need multiple watchmons all you do is hook them up in a row 14-15-16 etc.
You tell the watchmon to do what you need by way of grouping

image_ymgpie.jpg

It doesn't physically ' group them I guess'


ButWatchmon has a cool trick if you're trying to find a cell you can TELL it to show you. Pretty cool stuff.

image_qyhcue.jpgimage_wlypsk.jpg


Also the watchmon/longmonsare independent of your inverter. You can disconnect every pack down to 3.7v packs and as long as the longmon cables are still attached to each other and the watchmonit all still functions. One step further is even if the longmondata cables get damaged the longmons will still work to protect the cells against over chargingas they are independent of each other.
 
So in your setup you have 5 groups of 14.

I know you have all your cell packs numbered but would it not be easier to track down the particular pack if you could have it separated something likegroup 2 pack 3?

I think it would be cool if you could see all the packs but have some sort of separator between the groups. Perhaps it cando this and you just don't do it that way which is totally cool.

Thanks for your response :)
 
Thats why you have the locator :) Just turn on that function and only that particular mon will have its light on.
 
What he said :)
 
Definitelynot my best work but here is a video testing the BMS's ability to shut down my system in the event of an over heat event

 
does anyone have a hot-enough wire to batrium to ask for 2 things?

i would want/need a 12v fan connector with tacho-signal, maybe pwm? and an optional tempsensor connector/solder-points

the 12v could be delivered by 3s of the packs or externaly from another source

of course integrated into the longmon-options to display and work with
 
There is ongoing work for adding optional external temp sensors. Not sure when it will be out for the mons but it will come.

The other one i cant answer but i have pinged them to answer you :)
 
Korishan said:
Waaaay to many words and too many pictures. You're going to have to cut back on your wordage and picture quota. :p
Click to expand...

Yea, I prefer charts and graphs with summations :rolleyes:
 
Sorry if this has been asked before, can the Batrium handle 2 isolated 7S banks?
If it does not, does a BMS exist that does?
 
Scepterr: Yes you can potentially do that though there is only 1 shunt port. Current is that all should be same chemistry and such but for very special setups its recomended to contact them
Im running 2 watchmons due to having 2 different battery setups but still connected to same system in the end. This to make it a bit easier for me.

Crud: Yes, that's the current way of doing it.
 
that board wouldnt help me anything, if i want to get a temp-reading from within the cell, and every cell. same goes for the individual fan-setting for each cell
 
Wire from JayCar I used for my Batrium BMS wiring -

You need to manually twist 1 twist per cm Just used a cordless drill on low, and used a heat gun to warm the plastic cover first, and again after it was twisted. Gave it a good warm up then left the wire under tension till it cooled, seemed to hold it's twists a bit better.

You can also use multi strand Cat5 Cable (note that most is solid core)


image_yxpycs.jpg

image_kruupj.jpg
 
I have lots of cat5 cable as "scrap". So I plan on using that for most of my wire runs and circuits. It's already twisted for the runs, and it's heavy enough to handle the amps we'd be drawing at the cell-level.
 
You must log in or register to reply here.
Back
Top