Renogy BT pro battery RBT12100LFP-BT-EU + RPI Zero 2W issue

[daimonionnn]

Trying to connect my RPI Zero 2W with RPI OS (Bookworm 32 bit) to new Renogy Smart BT battery with self heating - 12V 100 Ah ( RBT12100LFP-BT-EU ).
I always get this error, tried reboots, upgrades, but no luck.

pi@zero:~/renogy/renogy-bt $ sudo python3 ./example.py config.ini
INFO:root:Init BatteryClient: RBT12100LFP-BT => 4c:e1:74:49:fc:fb
INFO:root:Starting discovery...
INFO:root:Devices found: 2
INFO:root:Found matching device RNGPRO12BATT50002965 => 4C:E1:74:49:FC:FB
INFO:root:Client connection: True
INFO:root:subscribed to notification 0000fff1-0000-1000-8000-00805f9b34fb
INFO:root:found write characteristic 0000ffd1-0000-1000-8000-00805f9b34fb
ERROR:root:Error connecting to device
ERROR:root:Connection failed: (<class 'bleak.exc.BleakDBusError'>, BleakDBusError('org.bluez.Error.NotSupported', 'Operation is not supported'), <traceback object at 0x73ec61c8>)
ERROR:root:on_error: (<class 'bleak.exc.BleakDBusError'>, BleakDBusError('org.bluez.Error.NotSupported', 'Operation is not supported'), <traceback object at 0x73ec61c8>)
INFO:root:writing to 0000ffd1-0000-1000-8000-00805f9b34fb [255, 3, 19, 136, 0, 17, 20, 182]
INFO:root:characteristic_write_value failed Multiple Characteristics with this UUID, refer to your desired characteristic by the handle attribute instead.
INFO:root:Exit: Disconnecting device: RNGPRO12BATT50002965 4C:E1:74:49:FC:FB

In parralel terminal I run
sudo busctl monitor org.bluez

and got this:

Type=method_call Endian=l Flags=0 Version=1 Cookie=3 Timestamp="Fri 2025-01-03 13:34:54.318671 UTC"
Sender=:1.56 Destination=org.bluez Path=/org/bluez/hci0/dev_4C_E1_74_49_FC_FB/service002e/char003b Interface=org.bluez.GattCharacteristic1 Member=StartNotify
UniqueName=:1.56
MESSAGE "" {
};

Type=error Endian=l Flags=1 Version=1 Cookie=274 ReplyCookie=3 Timestamp="Fri 2025-01-03 13:34:54.318807 UTC"
Sender=:1.7 Destination=:1.56
ErrorName=org.bluez.Error.NotSupported ErrorMessage="Operation is not supported"
UniqueName=:1.7
MESSAGE "s" {
STRING "Operation is not supported";
};

Any ideas ?