How long does it take to charge a phone with a 10W panel?

In direct sunlight, a 10W solar panel can charge a standard smartphone in about 2-3 hours. Cloud cover will significantly increase this time.

Can I use solar chargers on cloudy days?

Yes, but efficiency drops by 60-80%. It's best to use a power bank as a buffer: charge the bank when it's sunny, and charge your phone from the bank.

Most hiking panels are rated IP67 (waterproof) or IPX4 (splash resistant). The SunPower Max 5 featured here is fully IP67 rated.

Full review of the best eco-friendly chargers for hiking and camping.

Admin

February 4, 2025

1 min read

Solar chargers have come a long way. In 2025, efficiency has hit new highs with perovskite cells becoming mainstream.

The SunPower Max 5 offers 28% efficiency, which is unheard of in portable panels.

"This is the charger that changes everything for off-grid living." - TechWeekly

Whether you are hiking the PCT or just camping for the weekend, having reliable power is essential.

#solar#gear#review

Written By

Tech editor and futurist. Obsessed with clean energy and beautiful design.