Alert! System battery voltage is low.
警告！系统电池电压过低。
Recharge Indicatoright provides battery charge status and blinks to alert when to recharge.
光电池提供充电状态时，闪烁提醒充电。
Recharge Indicator: Light provides battery charge status and blinks to alert when to recharge.
充值目标：光电池提供充电形态时，闪烁提示充电。
Recharge Indicator: Light provides battery charge status and blinks to alert when to recharge.
充值目标：光电池提供充电形态时，闪烁提示充电。
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