3.4 Watt Solar Charger Kit

From $35

At 3.4 Watts, this waterproof, lightweight panel provides great charging performance 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.

Charge smartphones and other handheld electronics that charge from USB with the V15 Battery.

Charge many Android phones directly via the MicroUSB adapter.

Setup your Kit


3.4 Watt Solar Panel


F3.5x1.1 to MicroUSB


V15 USB Battery


F3.5x1.1 to MiniUSB


Panel Extension Cable


Zip Tie Set


USB Flexlight


USB Touchlight

Applications and Charge Times

The most common application for this kit is to charge smartphones via our V15 battery. Some, but not all, Android smartphones will charge directly from the panel via our F3511-MicroUSB adapter. This system will not charge digital cameras that require you to remove the battery for charging.

Approximate Charge Time from 3.4-Watt Panel**

Voltaic V15 Battery: 11 hours

Smartphone via Voltaic battery: 5-7 hours

Smartphone direct (when possible): 4-6 hours

**For maximum power output, orient the panels towards the sun. When not angled towards the sun, output will be reduced. Dirt and scratches on the face of the panels will reduce the amount of light hitting the solar cells. Clean the panels with a damp non-abrasive cloth. Charge times are estimated based on optimal conditions and may increase in cloudy weather, high temperatures, or when panels are not angled towards the sun.

3.4-Watt Panel Specifications

(the Array and Fuse 10W have three of these panels)

Dimensions: 210x113x5 mm (8.3x4.4x0.2 in)

Mass: 150 g (5.3 oz)

Substrate: 3 mm Aluminum/Plastic

Cell Type: Monocrystalline

Cell Efficiency: 18%

Open Circuit Voltage: 7.0 V

Peak Voltage*: 6.0 V

Peak Current*: 566 mA

Peak Power: 3.4 W

Connector: 3.5x1.1 mm plug

Mount: 4 stainless steel bolts

*Panel output is computed based on cell manufacturer's data assuming 0% reduction of cell efficiency after packaging of cell strings. Electrical output tolerance +/- 10%. Under irradiance of 100 mW/cm2, absolute air mass of 1.5, at 25 °C, as per cell manufacturer's specifications.


2 Year warranty on bag/case and panel(s), 1 year warranty on battery. 30 Day Refund for products returned in new condition.