Best Solar Power Banks for Hiking in 2025

The best solar power bank for hiking is the one you actually want to carry. Wattage matters, but so do weight, weather resistance, and how the charger plays with the rest of your kit. After thousands of trail miles testing every major brand, here's our 2025 breakdown of what to look for — and the three NovaDrop models we recommend for day hikes, weekend trips, and full-on thru-hikes.

What to look for in a hiking solar charger

A great portable solar charger for outdoor use balances four things:

• Wattage: Higher wattage means faster charging in full sun. 10W is plenty for a phone, 20W charges phones and small electronics quickly, and 30W can run a tablet or charge a small laptop in a pinch.
• Weight & pack-ability: Every ounce matters on the trail. The right balance of capacity and weight depends on how long you're out.
• Durability: Look for IP-rated weather sealing, drop-tested housings, and recessed ports.
• Real-world charging speed: Sun angle, panel efficiency, and battery management all affect how quickly you actually top up.

Top pick — NovaDrop Apex 30W

The NovaDrop Apex 30W solar power bank is our top pick for serious hikers. With 30W of solar input and a high-capacity battery, it can keep a phone, GPS, and headlamp running for a multi-day expedition. The MIL-STD-810G housing shrugs off rain, drops, and grit. If you're thru-hiking the PCT or the Appalachian Trail, this is the one.

Mid-range pick — NovaDrop Volt 20W

The NovaDrop Volt 20W hits the sweet spot for weekend hikers and most multi-day trips. 20W is fast enough to fully charge a phone in a couple hours of direct sun, and the form factor straps neatly to a pack lid. At $79.99, it's the best value solar charger for hiking we tested in 2025.

Budget pick — NovaDrop Spark 10W

For day hikes and ultralight setups, the NovaDrop Spark 10W is hard to beat at $44.99. It's small, light, and tops up a phone reliably in a few hours of clear sun. If you're heading out for a single day and just want backup, this is all you need.

Buying guide conclusion

The best portable solar charger for outdoor use isn't the one with the biggest specs — it's the one that fits the trip you're actually taking. Match wattage to your devices, weight to your pack, and don't skimp on weather sealing.

Ready to gear up? Browse the full NovaDrop solar power bank lineup and find the right charger for your next hike.