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Keeping our devices charged up can be especially challenging while camping and traveling. The best option I've found is to use a solar panel with a power-bank to store the solar energy.
This lightweight solar charger produces 7 watts of power with high efficiency mono-crystaline solar cells. Comes with fabric loops and carabiners to easily mount this panel on a backpack, bike or the side of a tent.
Wattage: 7 watt
Includes battery: Yes, a 4000mAh fast charge battery that will charge in approximately 5 hours.
Special features: Weighs just 1.6 pounds and the included battery holds enough charge to power up to 4 smart phones.
This 2-panel solar charger comes with 2 USB ports – that allow charging two devices at once. Works with all the latest devices. Panels are sewn into weather resistant polyester canvas. The eye loops make it easy to mount on a backpack, clothes line or bike rack.
Wattage: 15 watts
Includes battery: No. Consider Anker 20000mAh PowerCore.
Special features: 15 watt SunPower solar array is 21.5-23.5% efficient, providing enough power to charge two devices simultaneously.
Goal Zero Nomad 7 created to provide energy to your small devices, such as smartphones, mp3 players, or lights. You can charge any of Goal Zero battery packs, but it may take different amounts of time for charging, it depends on battery pack wattage. When you are in a camp place or in a forest, your smartphone battery is dead and there is no wall outlet near you, this product will let you survive. This unit puts out 7 watt of power. Even if there are clouds in the sky, Goal Zero Nomad 7 continues to charge without a problem.
