Is Rockbox on Clip+ draining the battery on USB power?

[palik4]

I noticed that Rockbox handles it differently when the battery is charging and when it's fully charged.

Under Debug -> View battery I see the following while charging.

Code: [Select]

Charger: present
State: Charging
CHARGER: 2C

After charging finishes, I see the following when it's charged.

Code: [Select]

Charger: present
State: Discharging
CHARGER: 81

However charge level is not changing, stays at 100%. Is the battery used (drained and then recharged immediately) on Sansa Clip+ after charging? Or is it kept completely idle while the USB charging voltage is present?

So if I want to save some battery lifetime by not draining it too many times, can I do it by using it from USB power every time when possible?

[Bilgus]

it has a timeout so it hits 100% stays for awhile shuts off charging drains a bit charges again hits 100% shuts off charging drains a bit; Rinse Repeat

[Bilgus]

If you wanted to save battery lifetime really you would make it charge only to 75-ish % but you'd have toi patch firmware for that

[palik4]

Can I completely disable charging manually and force my Sansa Clip+ to use only the power from USB (e.g. from the debug menu while on USB power)?

[Bilgus]

No, not without patching the firmware

[saratoga]

The Clip uses so little power it will essentially never drain the battery while plugged into USB.