In January / February was the charge of a Power Bank not possible, charging repeatedly broke off or not only started. There was tension at best, at 4.2 V, and if it has loaded, with fabulous 0.2 mAh. Well, it was winter, the circumstances far from optimal because Doing absolutely smears, however, another of mine used solar charger has in time been able to collect some revenue.
Well last week the weather was finally good enough that I was able to test the panel also outdoors in the blazing sun. This good performance was achieved, the voltage was also at customers connected at just over 5 V, and the Power Bank has been loaded 1.4A. Excellent! Annoying I found, however, that the Panel ceased its service immediately and the voltage dropped back to 4.2 to 4.3 V when vorbeizog also just a cloud, and then started to load again not when the sun was back.
My assessment of the panel in summary:
Pro:
- Stable processing, neat stitching, makes an overall good impression
- Reaches the specified charging power when conditions are almost perfect
- Powered small customers directly with electricity, and even reliable and durable (USB fan connected with max 2W power, and the thing is running, even in dim voltage; ideal for the mobile home where I park the solar cell behind the windshield, and have in.. the furniture run the fan. This also seems the problem does not appear that the supply just breaks in a cloud, the fan is so unpretentious, that it simply irons out the Macke of the solar cell and ignored).
- Lower price than its competitors (this should also be mentioned!)
Cons:
- Doesn't install charging regulation of any kind, the sun is just about gone, the panel must be restarted by folding
- Built no reliable protection against current backflow, at interrupting the download, it may happen that the connected battery is empty. This problem has not occurred in the connected Power Banks from different manufacturers, but at a test basis connected Samsung S3.
Whining at a high level or suggestion:
I would have fastening loops or eyes desired in order to adjust the panel better. Since the absence thereof, however, already clearly visible on the product images, this can not be a reason for points deduction; practically, it would be.
Conclusion:
Once again, I would not buy this Panel, for 10 euros extra, there are markedly better. When is it going, then it does a decent job. The poor or non-existent charging scheme is qualified, however, to a panel of people who are all the time sitting next to it, and if necessary can restart; that can not be the purpose of such panels. Since I have with the fan and another small rod holders found but my use for it, I give three stars, otherwise the acquisition would have been pointless.
