superscript two

U+00B2

superscript three

U+00B3

superscript one

U+00B9

masculine ordinal indicator

U+00BA

superscript four

U+2074

superscript five

U+2075

superscript six

U+2076

superscript seven

U+2077

superscript eight

U+2078

superscript nine

U+2079

battery

U+1F50B

electric plug

U+1F50C