3.5 Watt Solar Charger Kit

Average Rating

4 / 5.0 Based on 3 Review(s)

Compact and lightweight, this 3.5 Watt solar panel and 4,000mAh battery provides high performance charging to keep your devices powered up anywhere.

  • 4,000mAh USB Battery Pack
  • 4x Corner Mounts Included
  • Panel: IPX7 Waterproof, UV- and Scratch-Resistant
  • Battery: Always-On Feature
  • $69

    • smartphone charges from Voltaic battery
    • hours in the sun to charge smartphone
    • hours of smartphone usage from 1 hour in the sun
    • battery charges from Voltaic battery
    • hours in the sun to charge DSLR battery

    How it Works USB Chargers

    USB Battery - whats included
    3.5 Watt Solar Panel, Panel to Battery Adapter +
    1. V15 USB Battery
    2. USB to MicroUSB Charging Cable - charges V15 battery from any USB port or charges devices with MicroUSB input
    ITEM: 3.5W-KIT

    Features 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
    V15 USB battery - whats included
    Battery Functions:
    1. Power Button
    2. Charge Indicator
    3. USB Output to Charge Devices
    4. USB Input to Charge Battery
    Smartphones:Charges all USB Devices including all Apple, Android and Blackberry smartphones.

    Tablets: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:Charges both DSLRs and cameras that charge from USB. For DSLRs, optional camera charger cradle that matches your camera battery is required. Read our tutorial on solar camera charging.

    Average Rating

    4 / 5.0 Based on 3 Review(s)
    • Awesome by Eric (on 6/22/2017)
      This panel really hits the sweet spot between the huge, impractical fold-out panels and the little wallet-sized panels that will hardly keep a flip-phone charged. This panel kept mine and my wife's phone charged through 8 days of backpacking, including heavy use for navigation and audiobooks. 3-4 hours in the sun was enough to fill a smartphone battery (Galaxy S5) completely.
    • So So by Dave (on 6/5/2017)
      Get a bigger panel for this battery. Battery works well. Combo with this 3.5 Watt panel is lacking. Takes forever to charge. Wish I would have gotten a bigger panel.

      Response: Hi Dave - send us a note to support@voltaicsystems.com and we can try and find a used 6 Watt panel to help fix this problem.
    • Compact and easy to use by Phil (on 8/22/2016)
      I take this 3.5 watt charger with me when I go to Mongolia. Since many of the places my wife and I visit in Mongolia are very remote, one can't rely on having any source of electricity to charge batteries with. The 3.5 watt charger will charge my cellphone, double AA batteries and my wife's point and shoot camera battery with no problem at all. Small enough that it will fit on the dashboard of a car while traveling from one place to another so it can be charged while driving. I use the charger at home as well since it is very convenient. Don't be caught without one!

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