Doesn't the supplier provide you with some sort of PDF manual?

I've taken a slightly different approach to what you've done.

Of course I now have the Echo Tap which I take into the Backyard but before that I used my Power Banks.

I bought two Power Banks months ago - way back last year some time - and the Power Bank description literally summs them up.

The first and most powerful will power just about anything you can think of with a DC power in connection or USB power connection, any device requiring from 9-20V DC so go figure, run your Laptop computer for two days, Play that Casio Piano away from power or - for this example - run your Amazon Echo Alexa for literally hours.

The other Power Bank I have is a simple idea, a 20000MAH battery with 2 2A USB sockets on it though this little beauty takes a fair while to charge before you start.

Anyway this is the main Power Bank I use and it powers just about everything these days, I've had it charging both Amazon Tap and Samsung Galaxy S6 at the same time.

You're right about no warning given if battery power runs out however - those with sight - do have plenty of warning.

I know that with the USB Only Power Bank a person can hold a button down to see the battery meter, the more powerful bank has some sort of multi function LCD display that can be read.

You use this display to set the output voltage, check battery status etc.

A person without sight can easily set the voltage of this thing, you press the button for about a second and then each press toggles the output voltage between preset values: 9, 12,15, 19 and 20V



On 19/02/2017 9:14 PM, Gordon Smith wrote:
Good Sunday to you all

My first imprcssions of this device can be summed up using just one word: 
AMAZING!

I received the device just after 08:30 this morning which, in itself, just a 
very pleasant surprise. But the Smatree AE900 is much more than just a battery 
base for the Echo. It's a 900MA/H system, capable of powering up the echo for, 
so the blurb claims, in excess of 8 hours per charge cycle. I have not had the 
opportunity to read all of the documentation, owing to the fact that, like So 
many things these days, the dincumentation itself is tiny, and does not bode 
well to the OCR process on any platform. I have several options available to me 
in this regard, but those I've tried so far have not proven themselves up to 
the task. But I'll keep trying.

I have a hunch, however, have this device is more than just a glorified 
battery. I am given to understand that it actually adds functionality to the 
Echo. So we shall see.

In point of fact, I also have so smaller version of this battery base, designed 
for the Echo Dot. Sadly, there are some disappointing facts regarding this 
particular unit, which it is to be hoped, are not shared with it's larger 
sister product. One of these is the fact that the device provides you with 
absolutely no warning whatsoever that the batter powering your device is about 
to run out of fuel mid-flight. As with  an airplane, if the fuel tank runs dry, 
the engine just stops dead and you're out of options.

I hope that Smatree have picked up on this point, and provided some sort of 
safeguard against it.

Anyway, more later when I've done more testing. I don't want to comment based 
purely on what I read. There's no substitute for hands-on experience.

==============================

My Compliments And Kindest Regards
Gordon Smith
'Accessibility And Information Technology Support Specialist
------------------------------


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