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BQ34Z100-G1: Can't get the device to turn to learning status, calculated capacity not correct

Part Number: BQ34Z100-G1

I use BQ34Z100-G1 with a 7Ah 12V lead acid battery (closed cell). I use 808 chemistry. After 9 charge-discharge cycles, the values are still off. Also the learned status does not change.

The flags seem to be allright. One error I can see is that the CHG flag is not removed on discharging. What is happening ? 

SJK

BQ34Z100-G1 device startup

  1. Charge with 1.220 A from empty
    1. Sample # = 1 (4 sec interval)
    2. Control status = 0x0213, after a few seconds changes to 0x0203

                             i.      SLEEP, VOK, QUEN, CSV (valid checksum)

                             ii.      SLEEP, VOK, CSV

      1. Full charge = 2828 (??)
      2. Learned = 4

      3. Flags = 0x1116

               i.      SOC1, SOCF, CF, CHG, BATLOW (not updated)

      1. FlagsB = 0x2400

                                      i.      DODEOC, FIRSTDOD

    1. Pack config = 0x09D9
    2. TrueRC = -10462 (increasing)
    3. DOD0 = 15552
    4. Qmax passed = 0 (decreasing)
    5. QMax time = 0 (increasing with about 1 per minute)
    6. State of charge = 0

  1. Event: charger disconnected at Vbatt = 13.542, current from 0,2 A to 0
    1. Sample # = 5695
    2. Control status changed back to 0x0213 (QUEN)
    3. Available Energy = 5890
    4. Flags changes from 0x0116 to 0x0290 (CF, OCVTAKEN, FC)
    1. TrueRC changes from -4251 to 2829
    2. DOD0passed changes from -6211 to -1

  1. Event: load connected after rest. (Vbatt = 12.894 orginally, current = - 0,538)
    1. Sample # = 19525
    2. State of charge = 100, decreasing
    3. Remcap = 3042, decreasing
    4. Flags = 0x0290 later 0x0291 (i.e. DSG)

  2. Event: IT started again, reset again(Vbatt = 11.886 (under load))
    1. Sample # = 25610
    2. State of charge from 37 -> 0
    3. Remaining capacity from 1114 to 0
    4. Full charge cap from 3042 to 3500
    5. Flags from 0x0191 to 0x1197(SOC1, SOCF, DSG, CF, OCVTAKEN, CHG (??), BATLOW)
      1. TrueRC from 5772 to -2

    4.
    Event: load disconnected. (Vbatt = 10.848 under load, current = -0,462)
    1. Flags from 0x1197 to 0x1116
    2. Grid number from 4 to 5
    3. Learned status still 4
    4. Qmax passed 568