search

Louisvdw / dbus-serialbattery

Battery Monitor driver for serial battery in VenusOS GX systems
MIT License
538 stars 165 forks source link

Daly BMS - Battery connection breaks at ESS min SoC #1006

Closed Micha854 closed 7 months ago

Micha854 commented 7 months ago

Describe the bug

we have 2 batteries. a pylontech 9.6kw connected via can and a diy 9.6kw with daly bms connected via rs485 to usb on the rasperry pi

Venus is the current version 3.22

our ess is set to a minimum soc of 35%. Every time the DIY memory reaches around 35% (+, - 2%) it is no longer displayed in the VRM portal or in the remote console

As soon as something has been recharged in the morning, the memory is visible again. Can the serial battery driver be responsible for this?

In the BMS we have set the min cell voltage to 2.8V and the min total voltage to 42V

How to reproduce

no idea

Expected behavior

I want the connection to the battery to remain when the min SOC is reached

Driver version

1.0.20230531

Venus OS device type

Raspberry Pi 3

Venus OS version

3.22

BMS type

Daly Smart BMS

Cell count

15

Battery count

2

Connection type

Serial USB adapter to RS485

Config file

default config

Relevant log output

dont have

Any other information that may be helpful

No response

mr-manuel commented 7 months ago

You have to increase the Daly BMS sleep time with the PC software.

Micha854 commented 7 months ago

Super thank you! I would never have thought of the idea

I was able to set sleep time to the value 65535 using the PC software.

now the problem is solved. Thanks

mr-manuel commented 7 months ago

You're welcome.