AC line input or battery operation - portable for a variety of test locations.

AC线路输入或电池操作-可携式的测试不同地点。

youdao

Necessary maintenance items are given. The data analysis methods for VRLA battery operation and test are introduced.

提出VRLA蓄电池必要的维护项目，介绍VRLA蓄电池运行和试验数据的分析方法。

youdao

To warrant reliability of DC operation power electrical supply, all-round monitoring to parameter of storage battery operation is necessary.

为保证直流操作电源供电的可靠性，必须对蓄电池组运行参数进行全面的监测。

youdao

With optional battery power operation (requires six AA batteries, not included), users can even take the IS9181 out of their home or office to the patio or backyard, as long as the Wi-Fi signal is in range for streaming.

ENGADGET: VTech plunges into home audio market with IS9181 WiFi radio

Many of the other commands are scaleable as well, including power operation and battery charging.

FORBES: A Swarm of Thousands of Robots - For Cheap

More power means a bigger battery and more heat generated during operation.

FORBES: Battery Chemistry Is Getting In The Way Of Apple's Vision