I have an Anker Powercore that has enough output to charge the SD while playing, so just wondering what is the most efficient method to get the most out of both power sources for long haul flights.
I have an Anker Powercore that has enough output to charge the SD while playing, so just wondering what is the most efficient method to get the most out of both power sources for long haul flights.
Many wrong answers here. Most devices have what’s called a power path. When a device is powered via a cable and the battery is full, the device battery is bypassed and the electronics powered via the charging port directly.
There are always losses in both charging and discharging a battery. Discharging the power bank first and the SD battery second avoids the charging loss from the SD battery.
You should avoid keeping either battery at sub 20% state-of-charge for long periods, if possible.