The vacuum cleaner is equipped with a lithium-ion battery. Once fully charged it is claimed to provide a runtime of up to 40 minutes.
source https://timesofindia.indiatimes.com/gadgets-news/kent-zoom-cordless-vacuum-cleaner-launched-at-rs-9950/articleshow/87337817.cms
source https://timesofindia.indiatimes.com/gadgets-news/kent-zoom-cordless-vacuum-cleaner-launched-at-rs-9950/articleshow/87337817.cms