Connect the power supply, if the charging indicator turns on, then its in charging status. Charging time needs about 13 hours. If it is recharged through solar power, the output working voltage is 5-7V, output working current is 0.6A.If it is recharged through the charger, the output working voltage is 6V, output working current is 0.6A. 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 will cause damage to the battery. Frequent use is required, long-time nonuse is inadvisable. If you don’t use it very often, please recharge it every 3 months, or the battery life-span will be shortened.