Hi Pavel,
On 25.03.23 17:08, Pavel Machek wrote:
Hi!
...
- The third option of the rt5033 chip is enabling charging termination. This
also enables a re-charge cycle. When the charging current sinks below the
end-of-charge current, the chip stops charging. The sysfs state changes to
"not charging". When the voltage gets 0.1 V below the end-of-charge constant
voltage, re-charging starts. Then again, when charging current sinks below
the end-of-charge current, the chip stops charging. And so on, going up and
down in re-charge cycles. In case the power consumption is high (e.g. tuning
on the display of the mobile device), the current goes into an equilibrium.
The downside of this charging termination option: When reaching the end-of-
charge current, the capacity might not have reached 100 % yet. The capacity
to reach probably depends on power consumption and battery wear. On my mobile
device, capacity reaches 98 %, drops to 96 % until re-charging kicks in,
climbs to 98 %, drops to 96 %, and so on. Not reaching 100 % is a bit
confusing to the user, too.
Is the system powered from the battery in the not-charging case?
Yes, at RT5033 in the "not charging" state the system draws the power
from the battery.
...
Kind regards,
Jakob
