Another BATRIUM shart


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slimf

Member
Joined
Sep 26, 2017
Messages
219
This morning I woke up to this..

batriumcrash.png


I went to bed with a battery near 80%.. and I'm 99% sure the sun wasn't shining overnight - This morning I have a battery at around 67% SOC - But the monitors are falsely reading high voltages - NONE of my cells are unbalanced and NONE are at 4.11 volts.

The batrium has just gone into some sort of spaz attack and is reporting bullshit readings. Im going to reboot it now and I will post up a screenshot post reboot!

Here it is!

batriumpostreboot.png


All back to normal. Its really concerning that this can happen - Its rare (my system has been alive for over a year and this is the second or third time this has happened). Concerning to say the least.
 

slimf

Member
Joined
Sep 26, 2017
Messages
219
The screwed up thing about this is that it was bleeding off cells it thought were high - but were not, causing, not FIXING an imbalance.
 

Korishan

Moderator
Joined
Jan 7, 2017
Messages
6,880
Might be something worth mentioning to Batrium directly. Altho posting here the issues/results is good too.

What's the version of the Batrium main unit, the longmons, etc as well as the firmware revision on them? Might prove useful

Have you been keeping up with firmware updates?
 

OffGridInTheCity

Active member
Joined
Dec 15, 2018
Messages
2,073
If I can pile on.... :)

I haven't had this happen but I do have a shunt that goes haywire on a regular basis - every couple of months. And when it goes to 0% it throws an alarm and all shunt readings cease until I manually reset it.

Here's a typical sequence showing the date, 6am voltage/SoC %.
1646447559247.png

Notice it's bouncing around 11-14% Feb 22 - 25... and it will do this for months sometimes, but on Feb 27, 28th it dropped from 14% to 5% and now it headed to 0%.

The recalibrate options don't make sense to me and don't seem to do anything - no matter what I set them to. I don't ever do "Bypass" because I don't balance / never reach top most of the year.
1646447868507.png
 

slimf

Member
Joined
Sep 26, 2017
Messages
219
I have a WM5 - and the latest (2.17.15.0) and the firmware version matches.
 

jtvt

New member
Joined
Mar 5, 2021
Messages
5
I have 2 shunts and 3 pieces of equipment, not including shuntmon/batrium, that calculate SOC. Shuntmon seems to do ok when batteries are cycled to full regularly. If SOC bounces back and forth say from 40% to 80% never reaching full, the shuntmon/batrium can become 10% off compared to the other meters.
 

slimf

Member
Joined
Sep 26, 2017
Messages
219
I have 2 shunts and 3 pieces of equipment, not including shuntmon/batrium, that calculate SOC. Shuntmon seems to do ok when batteries are cycled to full regularly. If SOC bounces back and forth say from 40% to 80% never reaching full, the shuntmon/batrium can become 10% off compared to the other meters.
I only have the one shunt, (Batrium) but I’ve also noticed if SOC doesn’t get to near 100% for a week or so that it is off by some margin.
 

DG98

New member
Joined
Feb 4, 2021
Messages
17
I use a Batrium WM5. Several times it has done sort of the opposite of what yours exhibited. It reports correct voltages, but it suddenly decides to report a totally bogus SOC. I only charge to 4.05v, and when I'm there I show 100% SOC. Every several months, Batrium will show the cells to be in the 3.8v range, but for no apparent reason it will show the SOC to be 90-100%.

In short, I don't trust my Batrium system at all and regret the choice and expense I have put into it. Combined with their discontinuation of the WM5, I am pretty sure I would never use another one of their systems. I am currently working on an expansion for my existing battery pack, so I'll be looking for alternatives now that the MM8 is no longer available from the Batrium website. (They won't admit that it is discontinued, but you have to order two of them at $350+ apiece, then wait 3+ months to get them...so, they may as well not exist.)

Cheers, John
 

OffGridInTheCity

Active member
Joined
Dec 15, 2018
Messages
2,073
I use a Batrium WM5. Several times it has done sort of the opposite of what yours exhibited. It reports correct voltages, but it suddenly decides to report a totally bogus SOC. I only charge to 4.05v, and when I'm there I show 100% SOC. Every several months, Batrium will show the cells to be in the 3.8v range, but for no apparent reason it will show the SOC to be 90-100%.

In short, I don't trust my Batrium system at all and regret the choice and expense I have put into it. Combined with their discontinuation of the WM5, I am pretty sure I would never use another one of their systems. I am currently working on an expansion for my existing battery pack, so I'll be looking for alternatives now that the MM8 is no longer available from the Batrium website. (They won't admit that it is discontinued, but you have to order two of them at $350+ apiece, then wait 3+ months to get them...so, they may as well not exist.)

Cheers, John
I have WM4 + longmons but have the Shut SOC % issue as well.

Here's an example of a 6am snapshot I do each day showing the battery voltage / Soc%. Notice Apr 10 it was 18% but jumped to 0 Apr 11. Also notice that the wild swings in Soc % out of proportion to the battery voltage over the last 8 days after I reset it.
1650499972345.png


However, I stick with Batrium because it let's me expand my battery bank without having multiple BMSs and the features/reporting are quite detailed. It's easy to reset the Shunt % but it's annoying.
 
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