The XP1-2500 Cable battery backup unit is as small size battery.
XP1- 2500型号的电缆的备用电池的巨细，跟电池的巨细尺寸一样。
Look for a Child unit that has a backup battery in case of power failure.
寻求一个儿童组表示，有一个备用电池，在案件的电力供应中断。
Look for a Child unit that has a backup battery in case of power failure.
寻求一个儿童组表示，有一个备用电池，在案件的电力供应中断。
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