I was provided an evaluation unit for testing. Here is my experience.
I've
been using portable solar panels for a few years and it's amazing how
far they've come in such a short time. Just two year ago this panel
would of cost over well over $100 and it wouldn't of been nearly as
efficient.
I hooked it up to a USB power meter and ran a few test
using a Samsung Galaxy Note 4 (with the screen on as I was using it) on
a bright and sunny day. I also compared it to another similar portable
solar charger (very popular on Amazon, priced the same) and the Eceen
panel was the clear winner (the other panel was even rated at 14W).
Here are the test results and some specs:
13W Eceen:
2 Semi-flexible monocrystalline panels.
Dimensions - open: 12.5" x 13.8" x very thin (0.5" at the charging port) Closed: 12.5" x 6.9" x .25" (.75")
Weight: 1.05lbs (with carabiners and 2 small usb cables).
Performance: 4.94V @ 1.15A for a total of 5.68W.
14W competitor
4 rigid polycrystalline panels
Dimensions - open: 35" x 10.75" x 0.2" (0.8" at the charging port) Closed: 12.5" x 10.75" x .75" (1.15")
Weight: 1.73lbs (with 2 small usb cables).
Performance: 4.76V @ 0.86A for a total of 4.09W
I
really like the fact the panels are flexible, it feels so much less
fragile than my other rigid panel chargers. The difference in weight is
also quite noticeable. This panel seems very well suited to being
lugged around, packed away, and just used overall. The other panel did
score higher on the fact is has built in eyelets, that seems tougher.
This panel has a bit more diversity though; you can attach it in more
positions using the webbing across the back (top and bottom) and it only
folds in two so it stays rigid on it's side when unfolded. The
kickstand is a nice touch too and works well.
One thing I really
like is that its a semi-flexible monocrystalline type panel. MUCH
tougher than a rigid polycrystalline type panel and lighter to boot. I
wouldn't hesitate to toss this on the ground, I would NEVER do that with
a rigid panel charger.
As far as overall charging goes you're
going to get maybe 50-100% of what you do on a 2A wall charger. On my
Note 4 I get 1.15mAh on the wall charger when the screen is on, so I'm
getting 100% performance in this state. When the phone's screen is off
it pulls a pretty steady 1.74mAh @ 4.94V (6.68W), the Eceen charger
peaked at about 1.38A but was usually around 1.25A. Almost 30% slower
than the wall charger, not too shabby.
It's a great solar charger
for it's class (best solar charger in it's class I've used), and bested
one I thought would work better for sure. If you're looking to quickly
charge one device or slowly charge two devices this is the charger to
get. If you want to charge two devices at the same time you're going to
have to get 28W+ charger.
2 of 3 people found the following review helpful
I've used the ECEEN 13W foldable solar panel a few times so far in the week since I received it, and been very pleased with it.
It
seems extremely sturdy and has charged both my iPhone 6 and LG G3
almost as fast as if they were plugged in to the wall. I find it the
best when laid flat in sunshine, as when I tried leaning it up at a bit
of an angle against a wall, the charging was a bit slower.
The
panel folds up conveniently allowing you to slip it on your bag without
taking up much real estate. Because we can never predict mother nature
(and how much sunlight you may get on a given day), I would recommend
bringing along a power bank and using that to charge your devices, and
then use this solar panel to charge your power bank at the same time.
ECEEN makes very nice products and this one is no exception.
2 of 3 people found the following review helpful
Verified Purchase
This
works exactly like I hoped. Let me start off by letting you know I've
only had this for less than a day so the jury is still out on the long
term reliability. However, as of right now I am very satisfied. This is
the second solar charger I have tried. The first was a 12w BLKBOX model
sold for $49.99 here on Amazon. From that model, I received only
0.43amps @ 5 volts on a full sunny day which was very disappointing.
This was far short of the rated wattage. Needless-to-say I promptly
returned it.
Now on to the ECEEN 13w panel. I hooked up my power
meter to the panel, plugged in my Moto X, found some decent sun, and
immediately got 1.3amps!! I was giggling like a sissy as I saw the
charge jump 1% in about 1 minute of sun exposure. I am very, very
impressed. The $59.99 price tag was fully worth it. I have yet to try
the panel in full summer sun but I would suspect I might be able to get
1.6amps max. A great panel indeed. The magnet closure works great, the
stand is functional, and the small zipper pocket is large enough to fit
some clips, suction cups, a power meter, and a short USB micro cable.
Just perfect!
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