shavermcspud
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Seplos CAN BUS RS485 48v 200A 8S-16S BMS
- Thread starter Firechief
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Please let us know if you make it work!
I had is setup but it took time. It finally calibrated this morning
How did you do it? Was it automatic or did you use any of the 'calibrate' functions in Battery Monitor?
I've set battery rated capacity and Soc in software to whatever battery rating is and also remaining capacity alarm to 10%(I am not sure if this is needed but with original rating it does not discharge low enough, even with 10% my cell were over 3.1V)
Discharged the battery till it stoped, then charged it at constant rate at 20Amps overnight. Once some cells reached monomer high voltage alarm, the charge rate dropped to 10Amps but it still kep charging. At this point sock was 74% the remaining capacity was also was not close to what was rated . It still kep charging at 10Amps and once it reached the overvoltage alarm the charging stopped, both SOC and Remaining capacity got adjusted, and that was it.
I have been told by Seplos support that you have to set battery rating within 20Ah range of battery capacity otherwise calibration may fail.
If you get errors while trying to download new settingh then use Set all button at the top.
After it gets calibrated do not forget to change remaining capacity alarm
Yes, this is the first thing I did before connecting it.
@manuromero05
Are you going to fix your post?
Are you going to fix your post?
shavermcspud
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I have posted the script to pull the cell voltages from the BMS in an earlier post on this thread.
shavermcspud
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Most likely D4 diode, was common on a batch made before July 2020
Thanks. is there any easy way to confirm with a multimeter?
shavermcspud
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Yes it reads open circuit both ways its dead.
Yes, easy-peasy. Put your multimeter on continuity or diode-test (usually the same setting). Put the leads across the diode. One way will not register anything, the other way will register something, usually 0.7-ish. If you get nothing at all both ways, the diode is open (blown). if the diode is registering both ways, it is shorted.
Would you know the date range? I just received 2 new ones but the manufacture date looks to be 210506 !!
The date does not realy mater. I have received 6 and all of them were manufactured before August 2021. But I can see that the problematic diode was replaced.
Hello, a big thank you for all the feedbacks of this can bus compatible BMS !!!
For the Victron users I found a post on the Victron forum where people are using it with a GX device on chained LiFePo4 DIY batteries and details of the custom cable needed:
community.victronenergy.com
For the Victron users I found a post on the Victron forum where people are using it with a GX device on chained LiFePo4 DIY batteries and details of the custom cable needed:
SEPLOS 48V 100AH Energy Storage Battery Compatibility? - VictronEnergy
community.victronenergy.com
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As in call Seplos?
yep, send them a message
They just replied so will see
I’ve been running the 200 amp 48v for maybe 6 months now with zero issues, until today. All the light went out, nothing in the screen, no power coming through. Seems totally dead. The most power I ever put through it was maybe 50 amps and had nothing running today when it died. Is there anything I can try other than hit the reset button???
Which brand ? Seplos has a defective rectifier on there bms that they are changing out under warrant
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