Hi,
I'm using Bq35100 for gauging my Lithium Thionyl Chloride chemistry cell. I need to know the charge of the cell. I've put the gauge in accumulation mode.
Now these are the steps I've done.
- Change gauge to accumulation mode
- sent GAUGE_START command
- Read AccumulatedCapacity (4 bytes from 0x02-0x05)
- sent GAUGE_STOP command
- Again read AccumulatedCapacity
Based on my understanding ,
SOC = (Rem cap / Design capacity) * 100%
where, Rem cap = Design capacity - Accumulated passed charge.
Is it correct that the accumulated passed charge mentioned here is the accumulated capacity of 4 bytes read from the gauge.
Now the values i got for my 17Ah cell is
After GAUGE_START - D0 FA FF FF
After GAUGE_STOP - BF FA FF FF
How am i supposed to calculate the battery percentage using this data...Is there any additional steps I need to follow ?...
Is the charge accumulation here represents the accumulated passed charge ,which could be deducted from the design capacity??
Thank you in advance,
Arun Babu S