天堂√8在线中文,亚洲AV人人澡人人爽人人,日本家庭操逼内谢,日本 aaa 不卡

·UPS Power Supply Time

An uninterruptible power supply main function is to provide short-term and zero interruption of power to the device used, the general added power for about 5 to 10 minutes, allows the user to complete the shutdown, or promptly to replace the electricity generator starts. If it’s not required by the environment or equipment, you do not have to consider extending the time of power supply, otherwise will increase the placing space and procurement cost of the battery.