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0

50

100

0%on battery

Half gauge

A battery level as 20 cells on a half circle. Below 30% it turns amber, below 15% coral.

Charge

How it's built

The universe is 2:1 with .at-bottom, so the center sits on the bottom edge.
--o-force: 100cqw makes the reach the width instead of the shorter side.
20 <o-arc> without value split range-180 from-270; lit cells get a class.