Low battery, added in Unicode 14.0 (2021), instantly became the go-to emoji for 'I'm exhausted', 'running on empty', or 'my social battery is dead' — a perfect visual metaphor that filled a real gap since the regular battery emoji couldn't show a critically low state before this. It's especially popular in mental-health and burnout-related posts.
Keywords: battery, drained, electronic, energy, low, power