Let’s put it this way, these two things are basically unstable and have various conditions that affect them. However, their voltage and current are composed of resistors, voltage regulators, filters, etc., and the output is relatively stable.
However, I personally recommend that a solar charger with storage is okay.
You seem to be from Shijiazhuang. You can come to me and do a simple test yourself.
Solar chargers, I have two types of solar chargers. One is composed of a solar panel and some electronic components (I won’t introduce them one by one). It uses light sources to generate electricity directly to the third. Three-party charging does not have any storage, so it is convenient and lightweight, but it cannot be used without light. I personally do not support this method. There is also a storage device. When you have nothing to do, you can place it in a light place and let it automatically charge and save. When the battery is out of power or you are out on a field trip, you can let it flush the storage to your phone or other objects. I personally like this better. kind.
There is also a hand-operated charger. This is indeed good and can be used at any time, but its structure is quite simple. In order to reduce costs, some manufacturers have made the internal gears quite thin. The gear is turned on, even if the quality is good. I have used that one and it felt strange at first, but he didn’t mean how long the manufacturer said that the phone can last for 25 minutes by hand cranking. Not to mention that long, I can give you one, you shake it Try it for 10 minutes, haha
Now I am researching the above two types of third-party charging.
The above only represents my personal position and is not intended to conflict with any third party. Any similarity is purely accidental and coincidental.