The latest update for the PlayStation Portal sets the charge limit to 80%
, by Thibaut
Sony has rolled out a system update for its PlayStation Portal. Patch 7.1.7 focuses on improving the device’s battery life.
As a result, the update will automatically limit the Portal’s charge to 80%. You can, of course, disable this feature by going to Settings via the “System” menu and then selecting “Battery.” Sony has warned that charging the battery beyond 80% might "impact battery performance and overall stability, reducing long-term battery health", so it's strongly recommended that you leave this option enabled.
Finally, update 7.1.7 improves system stability, message display, and the usability of certain screens.
Source: playstation.com