They are one of the most popular types of battery for portable electronics, with one of the best energy-to-weight ratios, no memory effect, and a slow loss of charge when not in use.
The chip MAX713 for intelligent charge control is introduced in this paper, and with which, a DC UPS for portable instruments is designed.
介绍智能充电控制芯片MAX713 ，并以其为核心，设计了一台为便携式仪器仪表供电的不间断电源装置。
3
The Holy Grail of mobile computing is a portable device that has the power of a desktop computer, lasts more than a day on a single battery charge, and weighs next to nothing.