Reader rating
Rate it and you move it. Community ratings re-rank this product inside its Top 10 list.
Expert-picked, reader-ranked. Our editors choose the products and the launch order; member star ratings move picks up or down over time.
The SolarPowa 20 TOPCon gives you two ports and 20 W rated for a group, at under 1.4 lb. **Highlights** - Two ports - Lighter than the SunJack 15W per maker - IP68 excluding junction box **Watch-outs** - No independent measurements - 5V output only Research only: Wild10 has not field tested this model. Specifications come from the maker page; any measured figure is credited to the outlet that measured it.
Pros
- Two ports
- Lighter than the SunJack 15W per maker
- IP68 excluding junction box
Cons
- No independent measurements
- 5V output only
Best uses
- Two-person trips
- Budget kits
- Basecamp hikes
Specifications
- Rated panel power
- 20 W
- Ports
- 1 x USB-C, 1 x USB-A (5V/3A each), 5V/4.2A total
- Built-in battery
- None
- Weight
- 0.6 kg (1.32 lb) per maker
- Water rating
- IP68 excluding junction box per maker
- Wild10 evidence
- Research only, not field tested
- Best for
- Group charging on a budget
Pricing
We don't publish a price we haven't verified. The retailer links below open the live listing for this exact model.
Best for
Two-person trips, Budget kits, Basecamp hikes
Where to buy the SolarPowa 20 TOPCon
Prices and stock change often, so check the current Amazon offer before you buy.
Some links are affiliate links. Buying through them supports our testing at no extra cost to you.
The SolarPowa 20 TOPCon gives you two ports and 20 W rated for a group, at under 1.4 lb.
Why it ranks here
It replaces the SolarPowa 28, which BigBlue lists as sold out. It has more rated power than the SunJack 15W with two ports and a lighter maker-stated weight.
Specs that matter on trail
Rated panel power: 20 W; Ports: 1 x USB-C, 1 x USB-A (5V/3A each), 5V/4.2A total; Built-in battery: None; Weight: 0.6 kg (1.32 lb) per maker; Water rating: IP68 excluding junction box per maker. All figures are maker-stated unless a review outlet is named.
Limits and caveats
We found no independent measured output for this model, so it ranks below the SunJack. 5V only, so it will not fast-charge.
How we picked
We started with a long list of backcountry solar chargers that people actually buy, cut anything that could not clear our baseline for durability and field performance, then ranked the 10 that were left against the same criteria. Rankings are editorial. No brand pays for placement, and affiliate links never move a pick up or down.
- Real-world output
- Usable charging in clouds or cold, not just the rated wattage or capacity.
- Ports and packability
- Port types, charging speed and weight for the power delivered.
- Real-world durability
- How the material, stitching, or steel holds up after a season of hard use — not how it looks new.
- Performance in bad conditions
- Wind, rain, cold, and grit are the test. Anything that only works on a nice day gets marked down.
- Weight and packability
- Every ounce has to earn its place in the pack, but not at the cost of something that fails in the field.
- Ease of use
- Setup, adjustment, and maintenance with cold hands, in the dark, without the manual.
SolarPowa 20 TOPCon — frequently asked questions
- Is the SolarPowa 20 TOPCon worth it?
- We rank it #3 in Backcountry Solar Chargers. 4 lb. **Highlights** - Two ports - Lighter than the SunJack 15W per maker - IP68 excluding junction box **Watch-outs** - No independent measurements - 5V output only Research only: Wild10 has not field tested this model.
- What is the SolarPowa 20 TOPCon best for?
- Best for two-person trips, budget kits and basecamp hikes. Standouts: two ports and lighter than the sunjack 15w per maker.
- What are the downsides of the SolarPowa 20 TOPCon?
- No independent measurements and 5V output only.
- What are the key specs of the SolarPowa 20 TOPCon?
- Rated panel power: 20 W · Ports: 1 x USB-C, 1 x USB-A (5V/3A each), 5V/4.2A total · Built-in battery: None · Weight: 0.6 kg (1.32 lb) per maker · Water rating: IP68 excluding junction box per maker
- Why it ranks here?
- It replaces the SolarPowa 28, which BigBlue lists as sold out. It has more rated power than the SunJack 15W with two ports and a lighter maker-stated weight.
- Specs that matter on trail — what should I know about the SolarPowa 20 TOPCon?
- 32 lb) per maker; Water rating: IP68 excluding junction box per maker. All figures are maker-stated unless a review outlet is named.
Compare side by side
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