Re: Pi PICO W on batteries

From	The Natural Philosopher <tnp@invalid.invalid>
Newsgroups	comp.sys.raspberry-pi
Subject	Re: Pi PICO W on batteries
Date	2026-06-15 16:52 +0100
Organization	A little, after lunch
Message-ID	<110p73m$fa7l$1@dont-email.me> (permalink)
References	(1 earlier) <n987saFkc5pU1@mid.individual.net> <110onqi$ai08$1@dont-email.me> <n9a869Fu2vjU1@mid.individual.net> <110oqk3$baoh$3@dont-email.me> <n9aenlFhktU1@mid.individual.net>

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On 15/06/2026 14:58, Peter Heitzer wrote:
> 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.
Sigh,

The nano power switch  will not handle that voltage
Putting  a regulator in front negates the point of having a nano power 
switch,

> Perhaps a small USB powerbank may also work if you find one
> that does not shut off if the consumed current it to low.
> 
> 
Or drain the power in a month...

Sheesh. Why do some people always think they know better?

"I have examined, X,Y,Z,A ,B and C I found Q to be optimal"
"Why didn't you use A B or C?"
"
-- 
Climate is what you expect but weather is what you get.
Mark Twain

Thread

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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