External battery supply electricity for the door lock, thoughtful and more humanity.

可外接电池盒给门锁供电，考虑周到，更加人性化。

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The chip comes connected to a cable that provides it with power from an external battery.

为这个薄片联上电线，可以为它提供外接电源。

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With this external battery, the battery life of your device should last for 2 ~ 3 times longer.

与这个外部电池，你的设备电池寿命应该长期持续2 ~ 3时期。

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There's also a trough for latching on an external battery or LCD touchscreen BacPac.

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The Spark Solar Case and V39 External Battery are available now on www.voltaicsystems.com and with select retailers.

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This is powered by an external battery which is linked to the device by a wire entering through the skull and passing down the neck.

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