I think you are moving the goalposts. The batteries I linked to are consumer standard lithium chemistry batteries that people can buy off-the-shelf in drug stores and be used in smoke detectors and kitchen scales.
In order for them to function: They've each got charge circuitry, buck converter circuitry (to get down from 5v to ~3.7v lithium voltage for charging, and from ~3.7v lithium voltage down to 1.5v to be compatible with end-user devices), and each one includes its own USB C port.
No we’re talking about rechargeable batteries here… disposable lithium are too expensive and wasteful for frequently used high drain devices. I love them for emergency equipment like spot trackers and emergency strobe lights
