... to the built-in rechargeable lithium battery, the light is red for the green, about 15 or so can ... be filled with small, light off the battery is fully charged.Solar charger can be placed in the ... charge the battery that comes inside. Red LED is charging about 10-14 hours in the sun can ... . built a solar charger, power adapter, a charging output line 1, convert the first 5 (fit for Motorola, Samsung, ...