August 1, 2018A 21v charger is judged by the battery voltage level, so how does the 21v charger automatically detect the battery voltage during charging? For example, to detect the battery voltage, we need to open ...view
August 1, 2018The electronic scale has brought us a simple, fast, convenient and safe weighing service. Nowadays, in terms of weighing, we basically use electronic scales.Therefore, we all know that the electronic ...view
June 26, 20181. Be sure to learn input voltage range of your power adapter. World's universal AC100 - 240V voltage input is best, so as to avoid that your computer can not be used abroad.2. Be sure to know the out...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
June 26, 2018The American researchers have designed a new material that is expected to be used to make stable, high-capacity lithium-ion batteries, extending more than double the current lifespan of smart phones a...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