Goal Zero Nomad 20 Solar Panel vs BigBlue 28W USB Solar Charger
We compare the Goal Zero Nomad 20 Solar Panel and BigBlue 28W USB Solar Charger head-to-head on performance, features, value, and more. Here's which one wins.
BigBlue 28W USB Solar Charger
Scored 9.2/10 in our testing
Goal Zero Nomad 20 Solar Panel
Best premium portable solar panel — Goal Zero Nomad 20 with rugged build and Venture power bank pairing
BigBlue 28W USB Solar Charger
Best backpacking solar charger — BigBlue 28W with three USB ports and best weight-to-watt ratio
Score Breakdown
| Goal Zero Nomad 20 Solar Panel | Category | BigBlue 28W USB Solar Charger |
|---|---|---|
| 8.8/10 | Performance | ✓ 9.3/10 |
| 9/10 | Features | 9/10 |
| 9.3/10 ✓ | Ease of Use | 9/10 |
| 8.3/10 | Value | ✓ 9.5/10 |
| 8.8/10 | Overall | ✓ 9.2/10 |
Specs Comparison
| Goal Zero Nomad 20 Solar Panel | Spec | BigBlue 28W USB Solar Charger |
|---|---|---|
| 20W — monocrystalline | Rated Output | 28W — SunPower cells |
| USB-A 5V/2.4A | Port | 2x USB-A + 1x USB-C |
| 2.4 lbs | Weight | 1.3 lbs |
| Corner-reinforced, weather-resistant | Build | 4-panel foldable design |
| Built-in adjustable kickstand | Kickstand | Digital ammeter display |
Goal Zero Nomad 20 Solar Panel
Pros
- + Rugged construction — built for trail abuse
- + Built-in kickstand for optimal angling
- + Goal Zero ecosystem compatibility
- + Weather-resistant for multi-day trips
Cons
- − 2.4 lbs — heavier than budget alternatives
- − 20W rated — moderate output
- − Premium price per watt
BigBlue 28W USB Solar Charger
Pros
- + 1.3 lbs — lightest high-output panel
- + SunPower cells — highest efficiency per size
- + Digital ammeter for real-time output monitoring
- + Three USB ports for multiple devices
Cons
- − No integrated battery — direct charge only
- − Thin construction — less rugged than Goal Zero
- − No USB-C PD — standard 5V only
Our Verdict
Based on our scoring, the BigBlue 28W USB Solar Charger comes out on top with an overall score of 9.2/10. The BigBlue 28W delivers the best watt-per-pound ratio of any panel we tested — 28W from a 1.3 lb package with SunPower cells that consistently outperform generic monocrystalline. The digital ammeter shows real-time charging current so you can angle the panel for maximum output. Three USB ports charge multiple devices. In our testing it produced 16-19W in direct sun — the highest of any sub-2 lb panel. For thru-hikers and backpackers counting every ounce, the BigBlue 28W is the performance leader.
Buy the BigBlue 28W USB Solar Charger on AmazonRead the full Best Solar Chargers 2026 guide for complete reviews of all 4 products.