
Khoom kuaj
Dab tsi voltage yog lithium ion roj teeb tuag
Cov roj teeb lithium-ion muaj zog, siv ntau yam khoom siv, los ntawm cov xov tooj ntawm tes mus rau lub tsheb fais fab. Cov khoom siv hluav taws xob ntau yam uas tuaj yeem siv rau hauv ntau daim ntawv thov. Txawm tias

