Put the plug into the AC 100-240V~ power socket. When the indicator is on, the battery is recharging and it needs about 7 hours to recharge. If the product is charged by solar energy, then the solar panel's output working voltage is 5-7v, output working current is 0.1A. If the product is charged by the charger, then the charger's output working voltage is 6v, output working current is 0.1A. When the light becomes weak during using, that means the battery is in lack of power. At this moment, stop using it and recharge it in time so as to protect the battery. Recharge it before the light is completely invisible, otherwise it would damage the battery. Frequent use is required, long-time none use is unadvisable. if you don’t use it very often, please recharge it every 3 months, or the battery’s life-span will be shortened.Put the plug into the AC 100-240V~ power socket. When the indicator is on, the battery is recharging and it needs about 7 hours to recharge. If the product is charged by solar energy, then the solar panel's output working voltage is 5-7v, output working current is 0.1A. If the product is charged by the charger, then the charger's output working voltage is 6v, output working current is 0.1A. When the light becomes weak during using, that means the battery is in lack of power. At this moment, stop using it and recharge it in time so as to protect the battery. Recharge it before the light is completely invisible, otherwise it would damage the battery. Frequent use is required, long-time none use is unadvisable. if you don’t use it very often, please recharge it every 3 months, or the battery’s life-span will be shortened.