Being that the letter “V” is now part of the official Philippine alphabet, the English term “volt” can be written as is in formal Filipino writing.
volt
The Spanish translation voltio never caught on in the Philippines.
KAHULUGAN SA TAGALOG
volt: istandard na yunit ng puwersang electromotive, katumbas ng potential difference na maghahatid ng isang ampere ng koryente sa pamamagitan ng resistance ng isang ohm