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Gobel RN150 - Victron: Cell Voltage does not match
Posted: Mon Jan 15, 2024 9:36 am
by lucca371
Hello,
i own 2 GP-SR1-RN150 connected to Victron Cerbo over CAN. The System is working fine.
But the cell voltage displayed on the battery and in cerbo do not match.
Example (@50% SOC):
BMS monitor -- Cerbo BSLBATT details Lowest cell voltage
Cell10: 3390mV -- 01::10 3.364V --> Δ 0,026V
BMS monitor -- Cerbo BSLBATT details Highest cell voltage
Cell16: 3422mV -- 01::16 3.439V --> Δ 0,017V
SW Ver: JLD-BMS-S16A150-4P4L-V0.00.05_2
Even at 100% SOC, the values do not match. As a result, the statistics in the VRM are incorrect.
Best regards.
Re: Gobel RN150 - Victron: Cell Voltage does not match
Posted: Thu Jan 18, 2024 12:43 pm
by fancyui
I will check about this.
Re: Gobel RN150 - Victron: Cell Voltage does not match
Posted: Mon Jan 22, 2024 8:16 am
by lucca371
OK. Thank you.
Does it make sense to update to the new V1.06-01-H-20231212 firmware? I am still using the first one JLD-BMS-S16A150-4P4L-V0.00.05_2 firmware (Not available in the gobel download area)? I am a little surprised about my V0. ... version.
Re: Gobel RN150 - Victron: Cell Voltage does not match
Posted: Tue Jan 23, 2024 8:50 am
by fancyui
lucca371 wrote:OK. Thank you.
Does it make sense to update to the new V1.06-01-H-20231212 firmware? I am still using the first one JLD-BMS-S16A150-4P4L-V0.00.05_2 firmware (Not available in the gobel download area)? I am a little surprised about my V0. ... version.
https://drive.google.com/file/d/1O_Plx_ ... sp=sharingPlease try this firmware, V1.06
Re: Gobel RN150 - Victron: Cell Voltage does not match
Posted: Tue Jan 23, 2024 3:54 pm
by lucca371
Hi again.
Update to V1.06-01-H-20231212 is done. The voltage between Cerbo BSLBATT details lowest/highest cell voltage and RN_BMS_Tools software match.
But the battery BMS display showes different cell voltage only on lowest/highest cells. It seems like the values of the other cells match.
I have another question:
At 5C battery temperature, the possible charging current fell to approx. 20A (@ 2 RN150 parallel), even though the SOC was only at 50%. Is that normal at this temperature (old firmware)? At 10C the Victron Multi 5k reaches 64A to the pack.
Many thanks for your support.
Re: Gobel RN150 - Victron: Cell Voltage does not match
Posted: Wed Feb 21, 2024 8:58 am
by fancyui
lucca371 wrote:Hi again.
Update to V1.06-01-H-20231212 is done. The voltage between Cerbo BSLBATT details lowest/highest cell voltage and RN_BMS_Tools software match.
But the battery BMS display showes different cell voltage only on lowest/highest cells. It seems like the values of the other cells match.
I have another question:
At 5C battery temperature, the possible charging current fell to approx. 20A (@ 2 RN150 parallel), even though the SOC was only at 50%. Is that normal at this temperature (old firmware)? At 10C the Victron Multi 5k reaches 64A to the pack.
Many thanks for your support.
Yes, it is normal, RN150 BMS will request different charge current according to temperature and SOC.
C = max charge current value
Temperature:
15 ceicus +: 1C
10-15 ceicus: 0.6C
5-10 ceicus: 0.4C
0-5 ceicus: 0.2C
SOC:
Below 80%: 1C
80%-95%: 0.7C
95%+: 0.4C