Reviews AlzaPower MAX-E 21W Black
Reviews AlzaPower MAX-E 21W Black
Interested in reviews of AlzaPower MAX-E 21W Black? It got 3.4 out of 5 stars from our customers. Find specific customer reviews of AlzaPower MAX-E 21W Black below. We will appreciate if you also share your experiences with AlzaPower MAX-E 21W Black after purchasing.
User Reviews
Igor, Břeclav 4
Rated 16/11/2022, variant AlzaPower MAX-E 21W Black
Verified purchase
She ended up in a dumpster. Absolutely does not work, it almost immediately overheats above operating temperature and charges. Solar charger that minds the sun ☀️. Don't buy, waste of money and nerves. I used it as a hot pot mat for a while, otherwise useless for its purpose
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Petr, Praha 6 - Dejvice
Rated 08/09/2022, variant AlzaPower MAX-E 21W Black
Verified purchase
Well, I already have a third one and it doesn' t work as it should again, one port doesn' t work at all, the other one supplies a maximum of 5-6W on an absolutely sunny day. Apparently, they don' t have any output control, because they would have noticed that even the LED charging indicator doesn' t work (according to the instructions for position “3“), in addition, the seams on the leg that were delivered to me were cracked, which I find very annoying and that they only have it that way they will probably try which customer will keep it, or maybe not find certain defects, or miss the deadline for refunds or repairs.
Placement of the regulator pointless. It' s a pity that they don' t give it a little more, in a short time I tried three pieces and had to return them all, each one had a slightly different error, but they had one thing in common and that was a low-quality regulator, but it' s funny that for example a friend has a model from last year and it works without any problems, although as I already wrote, the eyelet is steaming and the threads have been torn from the support legs and they are only holding on, but a friend solved it with a mammoth and it is still holding, so in the end maybe I will try to buy his.
It' s a shame, as I already wrote, that they don' t put in a little more work with it, because I compared it with one Czech brand, which alza also sells, with its 28W version, and this one (a friend' s) basically delivered similar performance in a more compact package with a lower weight of almost 200 grams, which is very noticeable on longer trips. It' s a shame that it doesn' t have the eyelets on the sides so that it can be attached to the backpack while traveling, because it doesn' t work with the eyelet that is on this model, it would catch after a while and the panel would fall.
Otherwise, the processing as such looks great, it' s solid, nice materials, and it should have sufficient power, but the regulator simply “destroys“ it completely.
Compliance
Weight
The panels themselves
Price (when it was for 1000-1500, -)
Support leg
Well, I already have a third one and it doesn' t work as it should again, one port doesn' t work at all, the other doesn' t supply a maximum of 5-6W on an absolutely sunny day Apparently they don' t have any output control, because they would notice that even the LED charging indicator doesn' t work The placement of the regulator makes no sense It' s a shame they don' t give it some attention more, I tried three pieces in a short time and I am returning all of them, each one had a slightly different error, but it is funny that for example a friend has a model from last year and it works for him without any problems, so in the end maybe I will try to buy his.
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Jan, Praha
Rated 25/08/2022, variant AlzaPower MAX-E 21W Black
Verified purchase
Tried both at home on the balcony (SW) for charging the power bank and mobile phone, and on the trail. The panel works, my unit does not turn off, but I agree that the declared performance does not match. For 1k a good buy, currently at double the price I would already expect to catch flies (overall Alza power is a good brand, but it would be good to improve the quality based on feedback on some products).
overall it works well
does not reach the declared performance
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Petr, Praha 6 - Dejvice
Rated 05/08/2022, variant AlzaPower MAX-E 21W Black
Verified purchase
I immediately complained about the first one because, as it is written in the others, the voltage fluctuated and after about 10 minutes it turned off and just whistled, the second one I had the opportunity to try two days in a row after really warm days (air temperature 37°C Panel temperature 68°C, road in the city 72°C) and it seems that this piece works, although not as it should Declared performance is not even close, excuses like “here in Central Europe it only reaches 10-12W“ as an alza employee wrote below in response to someone the question is odd, in the summer when the light here is similar to that on the equator (at the time of writing this review) it still does not reach the declared performance, who has a home solar power plant can confirm, I will buy a 350Wp panel, now in the summer I will get 350Wp (rather, but in spring days, when there is enough light but not that much heat), with the surprise that when other quality brands sell 7W or 14W panels, you get those values.
This is a 14W panel, not a 21W, although it has a catch, measured several times (more later in the review), measured in different ways, I don' t understand why they don' t write the fact and confuse the customer, but I' m glad that at least it somehow works.
When lighting one panel, the panel (one is in direct sunlight, the others are fully covered) gives up to 4W per faster port (both behave quite similarly), when lighting two up to 6W, when lighting the whole panel it gives “only 8W“ if there is a huge heat like in on the date of writing this review (see temperature higher), so after a while the panel will reduce the current to around 6.5W, so in better conditions of high-quality lighting, but lower temperature, it seems to reach a maximum of 8-9W on one port, if we connect both, we get to a value of around 12-13W (approx. 6.5W each), which brings me to the next thing, which is the location of the ports, or of the controller itself, the placement like this in the middle seems unfortunate to me, I don' t see a single situation where such a placement would be appropriate, if I carry the panel on a backpack on a hike, I' d rather welcome the ports/regulator on one side or the other, so that the cable is as much as possible on the edge, the same, if I will be somewhere for a long time and I will have the panel stably in one place, I prefer that the ports are hidden and the sun does not shine on the cable and it is somewhere in the corner, which brings me to the next thing and that is the ports themselves, they are incomprehensible turned the opposite way they are for all other manufacturers (I personally have over 10 travel solar panels), there is a simple reason for this, the vast majority of the cable with an indicator of the value of the passing voltage and current or the multimeters themselves are standardized, and due to the way the ports are given here, it is not possible to check the voltage and current values with quality.
Another thing is the strap itself, I bought the panel based on the experience of an acquaintance who has had the panel for a long time, and he also confirmed that the strap broke quite quickly, it is very thin and obviously will not last long, as 7 out of 10 people will have the panel clipped to their backpack, it was it would be advisable to have eyelets on the sides or stronger loops (and then especially the hidden port on the edge).
After a more detailed analysis and examination, I found out that the panel should really reach 21W, but the fault is not in our climate zone, but in the regulator itself, its advantage is that it can supply electricity. energy even in very cloudy weather or in the shade (approx. 0.3-0.5W), but it cannot cope with higher currents, so you do indeed have panels that can deliver a total of 21W of power, but since there is the cheapest controller sold which can be bought from the Chinese, it will never let you over 1.6A per port, or overall 2.4A for both together, this is an older type and I believe that if I had the opportunity to disassemble it, the inside would correspond to what I say (it is a regulator that should properly be for only one port, here it is only parallel output to two). It' s a shame that a technology company like Alza doesn' t put in the work and buy a better quality regulator, when there are already ones on the market that have a simple display with an indicator of the passing current and voltage and really know how to work and release higher voltage and current, not to mention that after ordering, the delivery time was delayed about 6 times and after delivery within 14 days, the price of the panel increased by 8 hundred (the price remained old for me because I had an active order), if I am already raising the price by almost 50%, it would not be out of place put in a bit of work and purchase a quality regulator for the quality panels and packaging and ideally the eyelets on the sides, the price for a small customer of this regulator from the Chinese is around $2-3, the quality one is around $4-6, I believe that in larger quantities one will get to lower price and above all that the difference (approx. CZK 100) would be easily paid by the customer if he got the quality product and above all, in my opinion, you would not otherwise waste a quality panel and use its potential. I could go into more detail about him, but I don' t think anyone will read the whole thing. The panel will get a severe stress test next week, when we go on a trip of several days, so we' ll see how it copes, maybe I' ll add to the review afterwards.
Shape
Weight
Processing
Leg for support
Robustness
2x USB
Design
I immediately complained about the first one, as with the others, it did not hold the voltage and current and whistled
Poor quality strap
Poor quality regulator
Ports rotated
Bad placement of the regulator itself
There are no loops or eyelets on the sides
The voltage and current value indicator is missing
Delivery time
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Anonymous customer
Rated 19/05/2022, variant AlzaPower MAX-E 21W Black
Verified purchase
no benefits
It just doesn' t work, it doesn' t buy it. after 3 minutes it switches off from overheating
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Tomáš, Ostrava
Rated 12/03/2022, variant AlzaPower MAX-E 21W Black
Verified purchase
in spring and autumn, when the sun is shining, it works as it should
overheats after 3 minutes in the summer sun and switches off
not even for spring 21 w, max approx. 10
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Anonymous customer
Rated 08/03/2022, variant AlzaPower MAX-E 21W Black
Verified purchase
It charges well, is compact and light
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Milan, Strážnice
Rated 05/08/2021, variant AlzaPower MAX-E 21W Black
Verified purchase
It's about to stop charging. Overheating is likely to occur. I don't know under what conditions it would work. Maybe on a winter mountain if it's a sunny day. But completely useless in the summer sun.
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Jan, Praha 10 - Vršovice
Rated 27/07/2021, variant AlzaPower MAX-E 21W Black
Verified purchase
charges as expected in direct sunlight
only tested for a week. maybe the lifespan won't be much
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Roman, Praha 5 - Zličín
Rated 11/05/2021, variant AlzaPower MAX-E 21W Black
Verified purchase
It's a light
I haven't used it yet so I don't know current
Just the right size for the top lid of the backpack
I don't think it's gonna last
I would have expected thicker wires
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