Use the Customer Care Info Screen (CCIS):
1.Place Vector on his charger and plug the charger in
2.If Vector is booting up, wait for the “V” to finish
3.Double click Vector’s Back Button
4.Raise and lower Vector’s lift
5.Lower and raise Vector’s head
6.Press his Back Button 3 times
7BATT: on the charger, you should see levels at around 3.6V (3.4V-4.21V). Note that initially, you may see 0.2V
8.CHGR: on the charger, you should see levels around 4.9V with slight fluctuations.
以上转自官方网站
通俗的译文：
使用人机交互界面查看：
1.把Vector放在插上电源的充电器上
2.如果Vector正在启动中，请等待显示屏显示“V”图标直到完成启动（启动完成后后会显示anki.com字样）
3.双击Vector背上的按钮
4.举起然后放下Vector的手臂杆
5.拨动Vector头部，先下然后再上
6.按动Vector背部的键钮3次
7.电池信息：这是屏幕上会是显示大约3.6V（3.6V-4.21V）的电压。
注意：初次充电时，你应该看到的是0.2V电压
8.充电时：你可以看到大约4.9V在右的电压，并会轻微变动
