Battery under voltage and over voltage protection.
Five protection functions to extend the battery life.
Three protection: short circuit protection, overload protection, overvoltage protection.
The system panel through the DC/USB, you can connect a variety of household applications, such as energy-saving lamps, small fans, MP3, MP4, IPAD, mobile phones, etc..
A variety of charging methods, the system can use both solar panel and national grid electricity to charge.