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Re: Pi PICO W on batteries

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The Natural Philosopher <tnp@invalid.invalid> wrote:
>On 15/06/2026 13:06, Peter Heitzer wrote:
>> The Natural Philosopher <tnp@invalid.invalid> wrote:
>>> On 14/06/2026 18:48, rbowman wrote:
>>>> On Sun, 14 Jun 2026 12:17:25 +0100, The Natural Philosopher wrote:
>>>>
>>>>> Early days, but if anyone is thinking of battery powering a PICO outside
>>>>> for intermittent use,  a nano timer and lithium primary cells looks to
>>>>> be the best technology.
>>>>
>>>> Why not 18650s? 2 would give you a little over 7V
>>>
>>> "The maximum recommended input voltage for a Raspberry Pi Pico or Pico W
>>> is 5.5V. Powering the board above 6.0V will permanently damage the
>>> onboard voltage regulator"
>> 
>> One cell should be sufficient for powering the Pico. The regulator
>> lower limit is 2.3 V so there is a need for deep discharge protection
>> on the cell.
>> 
>I bench tested the device., Its not just a pico W. There is an 
>ultrasonic device in there as well.
>
>It stared to fail  around 4V.
Then two 18650 in serial and a 5V switching regulator should do the
job. Perhaps a small USB powerbank may also work if you find one
that does not shut off if the consumed current it to low.


-- 
Dipl.-Inform(FH) Peter Heitzer, peter.heitzer@rz.uni-regensburg.de

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Pi PICO W on batteries The Natural Philosopher <tnp@invalid.invalid> - 2026-06-14 12:17 +0100
  Re: Pi PICO W on batteries rbowman <bowman@montana.com> - 2026-06-14 17:48 +0000
    Re: Pi PICO W on batteries The Natural Philosopher <tnp@invalid.invalid> - 2026-06-15 12:31 +0100
      Re: Pi PICO W on batteries John R Walliker <jrwalliker@gmail.com> - 2026-06-15 13:04 +0100
        Re: Pi PICO W on batteries The Natural Philosopher <tnp@invalid.invalid> - 2026-06-15 13:17 +0100
      Re: Pi PICO W on batteries "Peter Heitzer" <peter.heitzer@rz.uni-regensburg.de> - 2026-06-15 12:06 +0000
        Re: Pi PICO W on batteries The Natural Philosopher <tnp@invalid.invalid> - 2026-06-15 13:19 +0100
          Re: Pi PICO W on batteries "Peter Heitzer" <peter.heitzer@rz.uni-regensburg.de> - 2026-06-15 13:58 +0000
            Re: Pi PICO W on batteries The Natural Philosopher <tnp@invalid.invalid> - 2026-06-15 16:52 +0100
    Re: Pi PICO W on batteries mm0fmf <none@invalid.com> - 2026-06-15 12:52 +0100
  Re: Pi PICO W on batteries Brian Gregory <void-invalid-dead-dontuse@email.invalid> - 2026-06-15 19:49 +0100
    Re: Pi PICO W on batteries The Natural Philosopher <tnp@invalid.invalid> - 2026-06-15 20:28 +0100
      Re: Pi PICO W on batteries Theo <theom+news@chiark.greenend.org.uk> - 2026-06-15 20:54 +0100
        Re: Pi PICO W on batteries The Natural Philosopher <tnp@invalid.invalid> - 2026-06-16 01:59 +0100
      Re: Pi PICO W on batteries Anssi Saari <anssi.saari@usenet.mail.kapsi.fi> - 2026-06-24 09:33 +0300
        Re: Pi PICO W on batteries The Natural Philosopher <tnp@invalid.invalid> - 2026-06-24 09:58 +0100
        Re: Pi PICO W on batteries Theo <theom+news@chiark.greenend.org.uk> - 2026-06-24 13:41 +0100
          Re: Pi PICO W on batteries The Natural Philosopher <tnp@invalid.invalid> - 2026-06-24 13:53 +0100
          Re: Pi PICO W on batteries "Peter Heitzer" <peter.heitzer@rz.uni-regensburg.de> - 2026-06-24 14:51 +0000
            Re: Pi PICO W on batteries The Natural Philosopher <tnp@invalid.invalid> - 2026-06-24 16:41 +0100
              Re: Pi PICO W on batteries wmartin <wwm@wwmartin.net> - 2026-06-24 20:35 -0700
                Re: Pi PICO W on batteries John R Walliker <jrwalliker@gmail.com> - 2026-06-25 09:21 +0100
                Re: Pi PICO W on batteries The Natural Philosopher <tnp@invalid.invalid> - 2026-06-25 10:12 +0100

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