Thus the names of all units start with a lower-case letter, except at the beginning of a sentence or in capitalized material such as a title. In keeping with this rule, the unit symbols for Ampere is a capitalized "A" and Volt is capitalized "V" because both unit names are based on the names of scientists.

How do you mention ampere?

The ampere (/ˈæmpɛər/, US: /ˈæmpɪər/; symbol: A), often shortened to amp, is the base unit of electric current in the International System of Units (SI).

Are unit names capitalized?

In English, the names of units start with a lower-case letter (even when the symbol for the unit begins with a capital letter), except at the beginning of a sentence or in capitalized material such as a title.