Hi,
I use BQ24104 to charge the 3.7v 6600mAH 18650 package, the designing charger current is 1.6A(actually 1.5A), the charging termination current is 0.445A(actually 0.387A).
During the charging process, when I the charging time is about 4 hour and a half hour, the LED of STAT1 of the BQ24104 start blining. It make no effect when I pull out battery, disconnect the adapter. Below is my sch.
It blining with the frequecy of 0.5Hz, and i check it in the datasheet.
When it start blining, i measure the battery voltage, and it is 4.04V. And the temperature is around 20 degree. I set the fast charge time as around 9 hours through C8. So it seem the problem is no the same as what the datasheet describes.
But i found a phenomenon that when i change another battery(voltage is around 3.9V), it become nomal. But when i insert the battery i say before, i blining again!
So, what's the reason? Can anyone help me?
Wish for anyone's reply. Thanks
