Lub chaw nres tsheb fais fab portable ua haujlwm li cas?

Tam sim no, cov roj teeb loj loj no yog lithium ion thev naus laus zis. Lawv tsis tsim hluav taws xob. Koj tsuas yog yuav tsum tau them cov nqi ntawm cov phab ntsa zoo tib yam, lub tsheb luam yeeb lub tsheb lossis cov khoom siv hluav taws xob sib cais, thiab lawv yuav khaws hluav taws xob kom txog thaum koj xav tau.
Piv nrog cov tshuab hluav taws xob roj, cov chaw nres tsheb roj teeb muaj ob qhov zoo: koj tuaj yeem khaws cia hauv tsev lossis siv hauv tsheb, thiab lawv nyob ntsiag to. Tab sis lawv muaj kev txwv ntau dua li cov tshuab hluav taws xob roj: lawv yuav tsis ua haujlwm lub tub yees, thiab lawv yeej tsis tsim los ua haujlwm cov khoom siv siab, xws li lub tshuab cua sov lossis cov tshuab ziab plaub hau. Tab sis lub khoos phis tawj zoo tuaj yeem yooj yim them lub laptop ob peb zaug, lossis khiav lub tshuab CPAP txhua hmo, lossis siv lub teeb me me lossis kiv cua.