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MAVIC 2 battery error

Open heda-praimfaya opened this issue 2 years ago • 0 comments

First I would like to thank you for the tools. Second I encountered an error while trying to repair my Mavic 2 battery. Any help will be highly apreciated. Here it is what error I got:

root@raspberrypi:/boot/dji# ./comm_sbs_bqctrl.py -vvv --dev_address 0x0b read BatteryStatus Opening i2c:1 Raw write: DATA=22 3e Chip detection failded: TimeoutError: [Errno 110] Connection timed out Auto-selected chip: SBS, Generic chip with SBS support Warning: Could not open chip definition file 'comm_sbs_chips/SBS.py' Reading simple command at addr=0xb, cmd=0x16, type=uint16, opts={'subcmd': None} Error: TimeoutError: [Errno 110] Connection timed out Traceback (most recent call last): File "/boot/dji/./comm_sbs_bqctrl.py", line 3681, in main() File "/boot/dji/./comm_sbs_bqctrl.py", line 3648, in main smart_battery_system_read(po.command, vals, po) File "/boot/dji/./comm_sbs_bqctrl.py", line 3015, in smart_battery_system_read v, l, u, s = smbus_read(bus, po.dev_address, cmd, opts, vals, po) File "/boot/dji/./comm_sbs_bqctrl.py", line 2569, in smbus_read v, u = smbus_read_simple(bus, dev_addr, cmd, cmdinf['type'], resp_unit, retry_count, po) File "/boot/dji/./comm_sbs_bqctrl.py", line 2044, in smbus_read_simple v = smbus_read_word(bus, dev_addr, cmd, resp_type, po) File "/boot/dji/./comm_sbs_bqctrl.py", line 1537, in smbus_read_word bus.i2c_rdwr(part_write, part_read) File "/usr/local/lib/python3.9/dist-packages/smbus2/smbus2.py", line 658, in i2c_rdwr ioctl(self.fd, I2C_RDWR, ioctl_data) TimeoutError: [Errno 110] Connection timed out

The program works because when trying to read the other battery that I have it can read it ok! This battery functioned ok since 2 weeks ago when for no reason stopped working. I tried to revive it by charging-discharging it but when plug into the drone I receive the same message : Battery signal error. I understand my BMS is kinda heavily broken and I am looking for any solution that would help me get the BMS up and running. The battery is charging when plugged into the charger. Otherwise is not starting at all. If I remove the battery while charging it can operates for couple of seconds but it shutdown almost immediately. Thank you

heda-praimfaya avatar Apr 21 '22 11:04 heda-praimfaya