EcoFlow 28W portable solar panel review
EcoFlow 28W Portable Solar PanelDisclosure: Product Choicest is reader-supported. We may earn a commission when you buy through our Shopee links, at no extra cost to you. Learn more.
A 0.6kg panel that folds to book size and charges phones straight from USB, for around ₱4,000, with the lowest owner rating of any panel here.
- Price: ₱4,000 as of Aug 2, 2026
- Biggest pro: Only 0.6kg and folds to the size of a book, so it fits in a daypack
- Main catch: USB output only, with no DC connector, so it cannot feed a power station's solar input
At a glance
| Brand | EcoFlow |
|---|---|
| Type | Solar panel |
| Price | ₱4,000 (as of Aug 2, 2026) |
| Owner rating | 4.2 ★ from 12 reviews |
| Shop | EcoFlow Philippines · Shopee Mall ✓ |
| Units sold | 43 |
Pros and cons
✓ Pros
- Only 0.6kg and folds to the size of a book, so it fits in a daypack
- USB-C at 20W and USB-A at 18W charge a phone directly, no power station needed
- Takes a 3,400mAh phone to 80% in around 50 minutes
- 25% efficiency from N-type TOPCon cells, the same grade as the big panels here
- IP68 rated for rain and dust
✗ Cons
- USB output only, with no DC connector, so it cannot feed a power station's solar input
- 28W is a phone and power-bank panel, nothing more
- Carries the lowest owner rating of any panel in this roundup
- Costs more per watt than every larger panel here, which is the price of pocket size
The EcoFlow 28W is a 0.6kg panel that folds to the size of a book and charges phones straight from USB, for around ₱4,000. It is the only truly pocketable panel here, and it carries the lowest owner rating in the group.
What makes it different?
It skips the power station entirely. Every other panel in this roundup exists to refill a battery; this one has USB-C at 20W and USB-A at 18W built into it, so your phone plugs directly into the panel.
That changes what it is for. No station, no cables, no adapters: unfold it on a bag while you walk, and your phone charges. EcoFlow states a 3,400mAh phone reaches 80% in about 50 minutes of good sun, which is real fast-charging rather than a trickle.
The cells are N-type TOPCon at 25% efficiency, the same grade as EcoFlow’s big panels, and it is IP68 rated.
How portable is it really?
0.6kg, folding to 291 x 177mm. That is a paperback in your daypack, and it is genuinely a different category from the 3.3kg 110W panel, let alone the 21.8kg rigid one.
What is the catch?
Two things, and they are both worth weighing.
No DC output. USB only. There is no connector for a power station’s solar input, so if you already own a RIVER or DELTA, this panel cannot feed it. That surprises people, and it is the single most important thing to know before buying.
The owner rating. At 4.2 it is the lowest of any panel in this roundup, where most EcoFlow panels sit at 4.9 or 5.0. That figure rests on a small number of buyers so far, so it is a caution rather than a verdict, but it is a real gap against the rest of the range and we are not going to talk around it.
Is it sulit?
Around ₱4,000 as of August 2, 2026. Check the latest price on Shopee. On cost per watt it is roughly ₱143, the worst of any panel here that charges anything real.
You are not buying watts, though. You are buying a solar charger that weighs 0.6kg and fits in a bag, and nothing else in this roundup does that. Whether that is worth the premium depends entirely on whether you will actually carry it. Bought for the wrong reason, it is an expensive way to get 28W.
Who should buy it
Buy this if you hike, camp light, or want a phone charger that works without a power station. It is the right choice for a daypack. It is the wrong buy if you own a power station and expected to plug this into it. See how it ranks in our best solar panels in the Philippines roundup, or browse more on our Home Improvement page. Our solar panel buying guide explains USB versus DC output.
Alternatives to consider
If you want to charge a power station instead of a phone, the EcoFlow 125W Bifacial is our Best Overall at around ₱9,000. If you only need to keep a security camera alive, the TP-Link Tapo A201 does that job for around ₱1,200.
Frequently Asked Questions
Can it charge a power station?
No, and this is the key limitation. The panel has USB-C and USB-A ports but no DC connector, so there is no way to plug it into a power station's solar input. It charges devices directly and nothing else.
How fast does it charge a phone?
EcoFlow states a 3,400mAh phone reaches 80% in about 50 minutes in good sun. The USB-C port does 20W and the USB-A does 18W, which is real fast-charging speed rather than a trickle.
How small is it folded?
291 x 177mm, roughly the size of a paperback, at 0.6kg. It genuinely fits in a daypack, which is the entire reason to choose it over a bigger panel.
Why is the owner rating lower than the other panels?
At 4.2 it is the lowest in this roundup, where most EcoFlow panels sit at 4.9 or 5.0. The rating comes from a small number of buyers so far, so read it as a caution rather than a verdict. We would want to see more feedback before recommending it over the rest of the range.
More solar panels we've tested
Every card links to our full review.
EcoFlow 28W Portable Solar Panel₱4,000 when last checked
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