Yes When the battery of the switch is almost dead, the system will automatically become super power-saving mode, that is, sleep mode. Before the battery is completely exhausted, if the switch can be charged, then the player can continue playing single-player games from the last place.

Due to its powerful hardware processing capability, Nintendo Switch's battery life in handheld mode may be shorter than that in 3DS. Nintendo claims that the battery life of the Switch is up to 6 hours, but this is related to the settings and games. The time for players to play games with Switch varies from person to person. There are many ways to play Switch, and some games consume more power than others.

Extended data:

The official test is still conducted with The Legend of Zelda: The Breath of the Wilderness. The old Switch can only support about 3 hours, while the new Switch can be extended to 5.5 hours, with an increase of 83%.

You can also compare the data of Switch Lite. Can support 3-7 hours of battery life, or better than the old Switch, but still not as good as the battery life performance of the new switch.

Nintendo switch official website -switch handheld

The battery life of the People's Daily Online -Switch is only 3 hours, but Nintendo says this is enough.