Parkman gave me this S1 external battery 5000 mAh for an honest opinion on Amazon. In packaging, Powerbank 5000 mAh, the manual with warranty, a microUSB cable and short-course (anti-nodes). This medium-capacity external battery warranty is 12 months.
--- The product and its use ---
This external battery is as "minimalist".This is the case of the design. Available in 4 colors: blue, white, pink and black.The dimensions are roughly those of an iPhone 5S, weight only 70 grams.
This Powerbank has only one power button, four witnesses blue light load, microUSB port 1 input and 1 output port not smart.
The input port is 5V 1A and 5V 2.1A output port. The theoretical capacity of 5000mAh 3.7 V in either 3700 mAh real. The manufacturer promises loads of numbers a bit inflated in my opinion.
After some tests, my best measurements indicated levels following load: 66% at 13:54, 2:24 p.m. 80% to 94% at 2:54 p.m.. 22% and 14% in 30 mins. A truly non-linear load, while conditions have not changed.
The charging begins directly by connecting your device, it detects and illuminates itself.
My phone has a 3000mAh battery. I could not charge my battery once from 10% Powerbank with this, the lights flickered at the end of the charge, I think that there was not much in it. So, the promise to charge an iPhone 6S Plus (which has the same capacity as mine) twice downright seems impossible ...
In fact, I feel that the Amazon product description does not match this. There is no torch while the precise description that there is one. Parkman, consider rewriting your bullet points)
In short, if not globally, it is friendly. Unfortunately, technical, competition (I think including RAVPoweror Aukey ) is better for the same price so I think this brand should upgrade to be competitive in the Amazon market.
In summary, the good points:
+ Price aligned to market
+ Small backup battery suitable for small battery phones like the iPhone 5, 6, 6S, not really for large batteries
Less good points:
- The description does not match the product
► Amazon Product link: http://www.amazon.fr/gp/product/B01C74IVGG