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3.5 Watt Solar Charger Kit for Smartphones

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  • 3.5 Watt Solar Charger Kit
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 Product Description

At 3.5 Watts, this waterproof, lightweight panel and 4,000mAh battery provides an economical solar charger and will help keep your devices charged up anywhere. Slide the panel in your bag or mount it nearly anywhere for a minimal, tough charging solution.

The V15 battery pack hold about 1.5 charges of a typical smartphone. The solar panel will charge up the battery in 4.5 hours of sun. One hour of sun provides about 2 hours of  smartphone use. 


Size and Weight

  • Solar Panels: 8.3 x 4.4 x 0.2 in (21 x 11.3 x 0.5cm), Battery: 4 x 2.5 x 0.5 in (10.2 x 6.35 x 0.16 cm)
  • 0.6 pounds (276g) including battery and solar panel

Solar Panel Output

  • Monocrystalline cells - 19% efficient
  • Open Circuit Voltage: 7.0V
  • Peak Voltage: 6.0V
  • Peak Current: 0.61A
  • Peak Current: 3.69 Watts

Solar Panel Construction

  • Urethane coating
  • 3mm Aluminum/Plastic composite substrate

Panel Mounting and Cables

  • 4 screws on back corners of panel allow multiple mounting options
  • Output cable is 8.5 inches, 22cm long and connects to V15 battery via included adapter

V15 USB Battery

  • Capacity: 4,000mAh, 15 Watt Hours
  • Output: 5V/1A USB
  • Input: 5-6V, 1A
  • Battery Type: Li-Polymer
  • Protection: Short Circuit, Over Charge, Over Discharge, Over Current, Over Temperature


Charges all USB Devices including all Apple, Android and Blackberry smartphones.

Charges all tablets that are powered by USB including Apple iPads and Samsung Tablets. Will not charge tablets that charge at 12 or 16 Volts.

Digital Cameras:
Compatible with cameras that charge from USB like GoPros. Not compatible with DSLRs.

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