Symbol 5546 from IEC 60417 - Title/Meaning: Battery check Function/description: To identify a control to check the condition of a primary or secondary battery or to identify the battery condition indicator.
Additional information: 
According to the condition of the battery, the size of the darkened area may vary.
In combination with an indicator such as an LED, this symbol may be used to indicate the battery is being charged
Published in: Supplement M, 1994;3C/1071/FDIS
Own work using: iso.org/obp/graphics/grs/2d6a0d65-5733-4203-b2bc-dff2c4351f05 200.png
Vectorization:  Mrmw