Re: Pi PICO W on batteries

From	John R Walliker <jrwalliker@gmail.com>
Newsgroups	comp.sys.raspberry-pi
Subject	Re: Pi PICO W on batteries
Date	2026-06-15 13:04 +0100
Organization	A noiseless patient Spider
Message-ID	<110opno$65gj$1@dont-email.me> (permalink)
References	<110m2k5$3hv5p$5@dont-email.me> <n987saFkc5pU1@mid.individual.net> <110onqi$ai08$1@dont-email.me>

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On 15/06/2026 12:31, The Natural Philosopher 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"
> 
>> and battery holders
>> similar to the AA types are available. The TP4056 charging modules are
>> inexpensive if you want to incorporate USB charging.

The Energizer lithium primary cells are a lithium iron sulphide
technology.  I have measured the cell voltages of about 20 new
cells and found them all to be between 1.800V and 1.805V open
circuit.  This would make them completely safe for this usage.
They maintain a voltage above 1.5V for much of the discharge
curve and most importantly they are unlikely to leak.
John

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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