Proper charging of a battery pack is essential to ensure safe and optimal operation of portable electronic devices.

使用正确的电池充电器能够保证便携式电子设备的安全和最佳操作。

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The converter is optimal for portable electronic equipment, which come with a battery pack for power supply.

所述转换器对于便携式电子设备是最佳的，它与电池组一同用于供电。

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A portable electric power tool including a housing (5) having one end to which an L-shaped battery pack (2) is installable.

一种便携式电动工具，包括壳体(5)，其具有一个端部分，L形电池组(2)可安装在该端部分中。

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It is widely recognized and highly acclaimed for its creative designs and innovative solutions. mophie is the proud developer of the juice pack, first ever "Works With iPhone" portable battery case certified by Apple Inc.

ENGADGET: Mophie's $80 Juice Pack Air ships to power-hungry iPhone 4 owners