August 1, 20181. ChargingWhen you use the lithium batteries, please note that after a period of time, the battery will go into the dormant state. At this time, the battery capacity is lower than the normal value an...view
December 25, 2017UL has announced that since June 20th, 2019, audio and video products, IT products and telecommunication products have to apply for UL certification of the new one UL62368-1 instead of the EN60950-1 a...view
December 25, 2017Power adapter first appeared in the mid 1980s. Japanese Toshiba, first used the switching power supply technology in external power supply for laptop. It started a new page in the history of power ada...view
August 1, 2018The power supplyBefore using, make sure the power supply voltage is 220V and 50Hz. Use special socket as far as possible, must not use a perforated socket, and make sure the socket has ground treatmen...view
June 26, 2018Lithium-ion batteries are classified into liquid lithium-ion batteries (Libified Lithium-Ion Battery, abbreviated as LIBs) and polymer lithium-ion batteries (Polymerium-Ion batteries, abbreviated as P...view
December 25, 2017DoE VI energy efficiency certification is an energy efficiency VI reports evaluated and issued by U.S. energy department. DoE VI energy efficiency is a standard for electric power resource utilization...view