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On 2022-11-01 11:16, Marty Hartwell wrote:
> Hi Bill
>
> I have and use my FT-817 sometimes in portable operations, currently
> my only rig for either
>
> V/U or HF opts, if I want to go digital I have my pi housed in a nice
> case that has a 7" monitor.
>
> Its specifications say it requires 5.1v at 3A, and so I use a buck
> converter from the 12V. The
>
> battery I am using is heavy from a lawn mower, so these days if I
> can't drive to the op site I
>
> don't go, but here in TN we have quite a few parks I can drive up to a
> place to set up. Nice
>
> for POTA.
>
> Have a good day.
>
> Marty kd8bj
>
>
> On 10/31/22 15:47, Bill Cromwell wrote:
>> Hi Marty,
>>
>> I looked at customer "questions" section and the manufacturer states
>> 5V@2 amps and 12V@3 amps. I removed those batteries from my "shopping
>> cart" since they won't actually meet my use needs. At the moment I am
>> running 12V sealed lead-acid batteries (SLAB) at just over 7
>> Amp-hours. They are holding up well but are reaching end of life.
>> Some of my gear draws up to 7 amps in transmit. If I only wanted them
>> for QRP operation they would be suitable. Maybe I will buy *one* for
>> that purpose. However, when I buy more suitable (to me) batteries
>> those will certainly handle a QRP rig at the park. I run up to about
>> fifty watts when I feel evil :) Less than one watt sometimes too so
>> maybe there is some hope for me.
>>
>> I will look at other offerings from this and other manufacturers.
>>
>> 73,
>>
>> Bill KU8H
>>
>> bark less - wag more
>>
>> On 10/31/22 15:00, Marty Hartwell wrote:
>>> Hi Bill
>>>
>>> I looked at the pictures on the left side that shows the different
>>> views. The
>>>
>>> second one down showing the front with the switch and USB and 12V
>>>
>>> input/output the USB shows 5v/2A (Max).
>>>
>>> My pi is housed with a monitor and I know it says 5.1V/3A and it
>>> does show
>>>
>>> low voltage warning, because I used a Buck Converter that had screw
>>> terminals
>>>
>>> for the connections and had to remove the connectors and solder the
>>> wires
>>>
>>> in/out to overcome the voltage loss., Maybe if you pi in run
>>> headless it
>>>
>>> is ok with 2A at 12V, good luck.
>>>
>>> Nice looking battery if it works good.
>>>
>>> Marty kd8bj
>>>
>>>
>>> On 10/31/22 12:19, Bill Cromwell wrote:
>>>> Hi,
>>>>
>>>> I put two of them in my 'cart'. I didn't notice anything about a 2
>>>> amp limit on the 5 volts. And nothing on the 12 volts either. Where
>>>> did i fail to look?
>>>>
>>>> 73,
>>>>
>>>> Bill KU8H
>>>>
>>>> bark less - wag more
>>>>
>>>> On 10/31/22 10:45, Marty Hartwell wrote:
>>>>>
>>>>> Hi
>>>>>
>>>>> I noticed the 5V is only rated at 2A, have you noticed any problem
>>>>> with the pi which needs 3A
>>>>>
>>>>> I believe?
>>>>>
>>>>> Marty kd8bj
>>>>>
>>>>>
>>>>> On 10/31/22 04:36, Vic WA4THR via groups.io wrote:
>>>>>> Roy, the battery I use is this:
>>>>>>
>>>>>> <>
>>>>>>
>>>>>> which is nice in that it also provides a 5v connection for the
>>>>>> RPi in addition to the 12v for the rig. Seems to run all day.
>>>>>>
>>>>>> =Vic=
>>>>>
>>>>
>>>>
>>>>
>>>>
>>>>
>>>
>>>
>>>
>>>
>>>
>>
>>
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