The first charge in 10-12 hours can be.

After using a period of time when charging?

Electric batons will be charged when the battery is low. How to determine the lack of electricity? The frequency of electric shock was significantly slowed down, when the sound becomes low, it shows that the self-defense equipment power shortage. However, it must be discharged before charging. When found insufficient power, multiple shocks several times, until you can not hit the arc when the electric baton lighting function to the remaining light completely shine. In general, the battery can be completely depleted by simply turning on the torch for a few minutes after the arc can not be turned on.