When your battery gets low, you will see the low battery warning dialog on the screen.
当电池低电时，你将在屏幕上看到低电警告窗口。
While the Pocket has been charged only once in the eight weeks or so that I had been using it, the Kindle gave me a low battery warning after five days.
我的口袋阅读器在使用的大概8周以内只充了一次电，而Kindle在5天后就告诉我电力不足了。
Warning: Battery is critically low.
意思是警告：电池电量十分低。
Provide key override, low-battery detection and warning, LED status indicators, and ability to program at the lock.
提供锁覆盖、低电池电压检测和预警，以及LED状态指示灯，从而能够锁定程序。
Small Dimensions, lightweight; Wide frequency range; Operation status LEDs; Low-battery warning; Internal or external power supply; Suitable for filed test.
尺寸小，重量轻，频率范围宽；具有电池电压欠压和工作状态指示；可内，外供电方式；非常适合于现场和无外接电源时的使用；
Small Dimensions, lightweight; Wide frequency range; Operation status LEDs; Low-battery warning; Internal or external power supply; Suitable for filed test.
尺寸小，重量轻，频率范围宽；具有电池电压欠压和工作状态指示；可内，外供电方式；非常适合于现场和无外接电源时的使用；
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