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When the Jolla phone is attached to a solar direct charger, instead of the phone being charged, the phone discharges but even much faster (perceived >10 times faster) than without any charger.

It may be the case, that when the phone is charged, the phone assumes that it is charged always with a with 5V and a current of e.g. 1.0 A. A (small) solar direct charger will not be capable to provide such a high current.

It seems that the Sailfish OS does not go into sleep mode, if any charger is detected. Perhaps the phone needs to continually calculate the battery status.

Related Jolla bug: 50ma lost during toh charging

Questions:

1. Is the Sailfish OS battery management implemented in hardware or software?
2. If the battery management is implemented in software: Is it implemented in such a manner that it needs to continually look-up the charging status and needs to keep the Sailfish OS continually awake and thus causing the power burned by a much higher rate than without charger?
3. Will fixing this power management bug in Sailfish OS also reduce the charging time, when charged with a 120V/ 220V based USB charger?
4. How does the Sailfish OS detect an active charger? (The charging icon seems to have a different detection barrier, than leaving the sleep mode.)

Here is the solar direct charger I have tested (without Sonnenrepublik power booster cable or external power bank): link: Sonnenrepublik - ClicSwing

Please provide feedback.

When the Jolla phone is attached to a solar direct charger, instead of the phone being charged, the phone discharges but even much faster (perceived >10 times faster) than without any charger.

It may be the case, that when the phone is charged, the phone assumes that it is charged always with a with 5V and a current of e.g. 1.0 A. A (small) solar direct charger will not be capable to provide such a high current.

It seems that the Sailfish OS does not go into sleep mode, if any charger is detected. Perhaps the phone needs to continually calculate the battery status.

Related Jolla bug: 50ma lost during toh charging

Questions:

1. Is the Sailfish OS battery management implemented in hardware or software?
2. If the battery management is implemented in software: Is it implemented in such a manner that it needs to continually look-up the charging status and needs to keep the Sailfish OS continually awake and thus causing the power burned by a much higher rate than without charger?
3. Will fixing this power management bug in Sailfish OS also reduce the charging time, when charged with a 120V/ 220V based USB charger?
4. How does the Sailfish OS detect an active charger? (The charging icon seems to have a different detection barrier, than leaving the sleep mode.)

Here is the solar direct charger I have tested (without Sonnenrepublik power booster cable or external power bank): link: Sonnenrepublik - ClicSwing

Please provide feedback.

When the Jolla phone is attached to a solar direct charger, instead of the phone being charged, the phone discharges but even much faster (perceived >10 times faster) than without any charger.

It may be the case, that when the phone is charged, the phone assumes that it is charged always with a with 5V and a current of e.g. 1.0 A. A (small) solar direct charger will not be capable to provide such a high current.

It seems that the Sailfish OS does not go into sleep mode, if any charger is detected. Perhaps the phone needs to continually calculate the battery status.

Related Jolla bug: 50ma lost during toh charging

Questions:

1. Is the Sailfish OS battery management implemented in hardware or software?
2. If the battery management is implemented in software: Is it implemented in such a manner that it needs to continually look-up the charging status and needs to keep the Sailfish OS continually awake and thus causing the power burned by a much higher rate than without charger?
3. Will fixing this power management bug in Sailfish OS also reduce the charging time, when charged with a 120V/ 220V based USB charger?
4. How does the Sailfish OS detect an active charger? (The charging icon seems to have a different detection barrier, than leaving the sleep mode.)

Here is the solar direct charger I have tested (without Sonnenrepublik power booster cable or external power bank): link: Sonnenrepublik - ClicSwing

Please provide feedback.