The Steam Deck's battery life seems to be below Valve's estimates

The Steam Deck is now in the hands of reviewers, and it sounds like the battery life falls short of what many might have expected.
Be sure to game near an outlet.

Round Up: The Reviews Of Valve's Steam Deck Are In - What's It Like Compared To Switch?

Why is my battery life so low? : r/SteamDeck

Valve Says it Hasn't Found a Game the Steam Deck Can't Handle

Last chance to buy Steam Deck LCD! Valve's handheld receives huge price drops

Steam Deck™

Steam Deck OLED review: A worthy upgrade - Reviewed

Valve Announces Steam Deck OLED: All the Details on the Price, Improved Battery Life, and More

Steam Deck OLED Goes Official with a Bigger Battery, New CPU

Steam Deck review

Steam Deck Review

Left my Steam Deck to charge for about 3 hrs after getting the 10% warning, and came back and I see this : r/SteamDeck

The first aftermarket Steam Deck screen upgrade is here, but it sure seems like a bad idea

Valve Steam Deck review: A great start for portable PC gaming