I *thought* I understood what the "Cycle Count Threshold" was.
In my case, I see it set at 900mAhr, in a pack with about 2400mAhr of capacity. It appears that the contents of the "Discharge Count Register (DCR)" are compared to the Cycle Count Threshold. But what if I only discharge, say, 500mAhr? I obviously haven't crossed that Cycle Count Threshold, so no cycle is counted. Suppose then I recharge the battery.
- Is the DCR set back to zero?
Moving on ....
If I discharge yet another 500mA, this singullar discharge also fails to cross the Cycle Count Threshold. But when considered with the prior discharge, I have crossed a cumultive discharge of 900mA by a good mnrgin.
- Is the Cycle Count Register finally incremented, or does it continue waiting for DCR (or some other register) to reach 900mAhr.
MY GUESS:
It looks to me like the DCR get reset whenever the following happens:
The bq2060 initializes DCR to FCC – RM when RM is within twice the programmed value in
Near Full EE 0x55.
This means that I can conceivably have multiple discharges of letss than 900mAhr, and never trip the cycle count threshold.
Could some kind correspondent at TI please confirm this for me. Thanks.
- Michael
