You can see the mark + and - on both ends of each battery. + means positive pole. - means negative pole.
**Please note: The battery can burn the epipe body if you put it in the wrong direction. Please check the instruction manual of your device for proper installation.
How to charge batteries?
* Please put the battery on the charge.
* The LED light on the charger is red when charging the battery and it turns green when the battery is fully charged.
* When charging the battery, please make sure that the polarity of the charger and battery be the same.
Warranty: 14 days for manufacturer defects. It does not cover charging the battery incorrectly. Please contact us if you feel your battery is not working properly.