A 3.4 watt monocrystalline solar panel generates power in sunlight. They are waterproof, lightweight, and built to withstand abuse.
Power: 3.4 watts total peak output at 6 Volts
Charge times: 6 hours in the sun fully charges a typical phone, 1 hour provides about 75 minutes of talk time.
V15 Universal USB Battery
Included battery charges efficiently from solar and stores power for use anytime. When not in the sun, it can be charged using the USB Power Cable or optional AC travel charger or DC car charger, making it just as useful on the grid as off. Charge devices from the USB Port using your own cable or the included Micro USB and Mini USB adapters.
Capacity: 4,000 mAh, 15 Wh
Output: 5 V, 1000 mA
Input: 5-6 V, 1000 mA
Maximum Output Power: 5 Watts
Weight: 4.4 oz (126 g)
Dimensions: 4" x 2½" x ½" (102 x 65 x 16 mm)
Charge Time: In direct sun, fully charges in 11 hours from 3.4-Watt solar panel. Can also be charged using any USB port or optional DC or AC chargers
Battery Type: Lithium Polymer
Protection: Short Circuit, Over Charge, Over Discharge, Over Current, Over Temperature
Charge Display: LEDs light sequentially when charging.
Capacity Display: 1 flashing LED 0%, 1 LED <33%, 2 LEDs 33-66%, 3 LEDs 66-95%, 4 LEDs 95%+ full
Bag
Volume: 970 cubic inches (16 liters), enough room for a laptop and gear for a day trip.
Dimensions: 18" high x 12" wide x 6" deep (46cm high x 31cm wide x 15cm deep)
Weight: 2.4 lbs (1,090 grams) including battery and solar panels
Fully padded, dedicated laptop sleeve: Fits up to a 17" laptop (17" MacBook, larger 17" laptops may not fit)
Storage: One main compartment with 2 interior pockets, laptop sleeve and front pocket for charging and small electronics.
Built for Comfort: High density padding in the shoulder straps and back. Mesh backing material for better air flow
Fabric: 600D shell made from recycled PET (soda bottles),which is waterproof, lightweight, and UV resistant.