Emergency 21W Foldable Solar Panel Charger

Portable solar power for your phone, ready whenever the sun is out.

The Mach 1 21W foldable solar charger gives you a dependable way to keep your USB devices powered without an outlet in sight. Just unfold it, angle it toward the sun, and start charging — a lightweight, eco-friendly backup for travel, camping, or emergency situations.

Key Features

• 21W solar output — efficient charging directly from sunlight
• Dual USB outputs — charge two devices at once
• 5V/2A output — standard, safe charging speed for phones and small electronics
• Lightweight and foldable — just 1.23 lbs, folds to 11.81" x 6.69" x 1.57"
• No setup required — unfold, position toward the sun, and start charging

Specifications

What's in the Box

• 1 x Emergency 21W Foldable Solar Panel Charger

FAQ

1. What devices can I charge with this?
   Any USB-chargeable device, including phones, portable speakers, and small electronics.
2. Can I charge two devices at once?
   Yes, it has dual USB outputs.
3. How compact does it fold down?
   11.81" x 6.69" x 1.57" folded, making it easy to pack for travel or emergencies.
4. Does it need direct sunlight to work?
   Yes, like all solar chargers, it performs best in direct, unobstructed sunlight.

You May Also Need

Need higher wattage or a backpack-integrated option? See the 40W Monocrystalline Folding Solar Panel or 21W Backpack Solar Charger, or browse Backpack Foldable Solar Chargers.

Why Buy from Mach 1 Lithium

Mach 1 Lithium builds portable power gear for real outdoor use — efficient solar cells, durable builds, and gear that keeps your devices charged wherever you go.