SOC fall down over night

Question

question

anddittma asked Oct 26, '22

SOC fall down over night

In my system (Multiplus 2-48, GWL 4,8 kWh, Venus OS) falls des SOC overnight quickly from 75 % to 10 %, but no big consuption or feed was observed. Battery life was activated.

What can be the reason?

ESS Lithium Battery Venus OS SOC

victron-soc-abfall-261022-0215uhr.jpg (17.1 KiB)

1

2 |3000

Attachments: Up to 8 attachments (including images) can be used with a maximum of 190.8 MiB each and 286.6 MiB total.

peter-5 commented · Nov 23, 2022 at 07:25 AM

Hello,

Did you find a solution?

I‘ve a similar problem with a MP and REC BMS, during discharging from 100-50% all is ok. After that SOC drops to 3% . Voltage is 54v on a 16s what is still good.

Thank you, Peter

0 ·

Modifications Space

Node Red Space

Answer 1 · 2022-11-23T07:51:56Z

Paul B answered · Nov 23, 2022 at 07:51 AM

check that the battery monitor you are using has the correct battery size set, if its a BMV or mutliplus/quattro unit - if its the batteries BMS being used as the batetry monitor then contact the battery supplier

2 |3000

Attachments: Up to 8 attachments (including images) can be used with a maximum of 190.8 MiB each and 286.6 MiB total.

question