Depends on the design of the charging circuitry. While your statement of “battery being decoupled if fully charged” might be true on some devices, the usual (because simpler to design and cheaper due to less parts) approach is to power the device through the battery. Even if a charger is connected.
Depends on the design of the charging circuitry. While your statement of “battery being decoupled if fully charged” might be true on some devices, the usual (because simpler to design and cheaper due to less parts) approach is to power the device through the battery. Even if a charger is connected.