David Taylor wrote on 7/1/2017 5:28 AM:
> On 30/06/2017 20:20, rickman wrote:
>> David Taylor wrote on 6/30/2017 4:19 AM:
>>> On 29/06/2017 15:30, rickman wrote:
>>>> David Taylor wrote on 6/29/2017 3:33 AM:
>>> []>> Rick,
>>>>>
>>>>> This one (or similar) on Amazon US claims to be a UPS, and just needs 6
>>>>> 18650 batteries.
>>>>>
>>>>>
>>>>>
https://www.amazon.com/Feamos-Mobile-Battery-Charger-Universal/dp/B01H52KI70/re
f=sr_1_2?ie=UTF8&qid=1498721130&sr=8-2&keywords=power+bank+ups#Ask
>>>>>
>>>>>
>>>>>
>>>>>
>>>>> but also mentions a 1-second gap.  Sigh!
>>>>
>>>> I assume you mean when disconnecting the input power it takes 1 second to
>>>> restore power to the output?  I didn't see anything that mentions that.  I
>>>> did see one review that said it can't generate output voltages above 12
>>>> volts when being charged, but that wouldn't be a problem for the rPi.
>>>>
>>>> Seems this unit has a buck converter to generate voltages below 12 volts
>>>> and a separate boost converter for voltages above 12 volts all selected by
>>>> a pair of slide switches.  I am guessing the boost converter is reused for
>>>> the charging circuit so the higher voltages are not available when
>>>> charging.
>>>
>>> The unit has a 5V/2.1A USB outlet, which I would expect you to use for
>>> the RPi.
>>
>> Not sure what your point is.  What your wrote has nothing to do with what
>> I wrote.
>
> I was unsure why you were mentioning the 12V output in connection with the
RPi.

Why didn't you ask?

--

Rick C

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