It's my time that I'll gonna review a powerbank with dual USB output and it comes from the Chinese brand Yoobao. Here's what I got from this product thru my unboxing and review.
This is the front and back box of the Yoobao Master M4 Powerbank. It has a nice packaging containing all of the key features and information about the product.
The front has the Yoobao logo while at the back, you'll gonna see more on the input and output information and powerbank capacity which I said earlier. Good thing that both input supports max. of 2 amperes while up to 2.1 amperes in one output. It has a glossy finish but not prone to finger prints and dirt.
The top part has dual USB output (one 1 ampere and one 2.1 ampere) and torch which you have to press and hold the power button to activate it. The left part has the micro USB for input. The right part has 4 LED indicators (each LED represents 25%) and power button.
The box also includes the information sheet (which it also contains a code which you can verify if your purchased Yoobao powerbank is real by verifying it to their website) and micro USB to USB cord.
It has an auto-on which it will gonna run once you plugged in the USB cable to a mobile device and the other way around for auto-off. I noticed that it don't have a feature like in Mi powerbanks that once that your device is already in 100%, it will not automatically shut off. It can be a good or bad thing depending on you but this powerbank will favor for those who practice trickle charging.
In my number of tests, I noticed that I am getting around 74% out of 10,400 mAh when I am alternating 2 smartphones with 2,000 mAh powerbank which I am expecting for more. Using a 2 ampere charger, it will fully charged at around 6 1/2 hours.
Pros: Dual USB output, torch, almost always available, a powerbank in favor for those who likes to trickle charge. Auto on charging feature/
Cons: No auto-shut off when the device is at 100%
This powerbank is recommended for those who carry a smartphone and a tablet and those who might not want to carry another torch for all-around. A good alternative for those who can't really grab that elusive Mi 10,400 mAh powerbank. How I wish that it's price will be slashed down a bit more as another powerbank from a known international brand is coming soon.
Yoobao Master M4 10,400 mAh Powerbank is currently available at Lazada Philippines for Php 999. I'll gonna give it a 3.5 out of 5 for my rating. (Buy it on Lazada Philippines thru this link!)