On 09/03/2020 19:30, Martin Gregorie wrote:
> On Mon, 09 Mar 2020 14:22:11 +0000, The Natural Philosopher wrote:
>
>> I would suggest  a 2 cell pack and a model type SBEC.These are very
>> small and low RFI.
>> e.g. if in the UK
>>
>> https://www.rapidrcmodels.com/turnigy-5a-8-40v-sbec-for-lipo-222-p.asp
>
> Good idea - thanks for suggesting use of an SBEC, since they're fairly
> small.
>
> I've already discovered that there are 1000 mAh 2S batteries that should
> fit in my preferred volume behind the HyperPixel display.
>
> BTW, I won't be using any add-ons apart from the screen: its a touch
> sensitive TFT and the Pi Zero W's wifi provides all the connectivity I'll
> need.
>
>
Some people actually make step UP buck converters for single cell LIPO
but they may be more expensive

https://www.dimensionengineering.com/products/lvboost

But TBH running with two cell LIPO packs is pretty good - they are
cheap, available and reliable. And they don't stress even an analogue
regulator on a heatsink too hard.


--
“Ideas are inherently conservative. They yield not to the attack of
other ideas but to the massive onslaught of circumstance"

    -  John K Galbraith

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