Secondly forbatterycharging time should be grasped, carefully chosen charger, charging can't too often.
其次对于电池要把握好充电的时间，谨慎选择充电器，充电不能过于频繁。
2
This is useful forbatterycharging, but - you'll notice how "lumpy" the Direct Current looks on the scope.
这是有益的电池充电，而且-你会发现如何“块状”直流期待的范围。
3
Clarification: USB 2.0 adds in the Batterycharging specification 1.0, which allows for dedicated charging and other power goodness. This particular connector is the type a variety.