On Mon, 09 Mar 2020 17:28:10 +0000, Theo wrote:

> You don't want to power it directly from the lithium cell - you need a
> cutoff circuit to prevent overcharge and overdischarge.  The cutoff is
> often integrated into a 5V stepup chip, so there's no point using the
> bare cell even if it would work.
>
Sure - using a BEC commonly used on electric models sorts that out. I'm
aware of that problem, and intend to deal with it, but ATM am more
concerned to find out of I should use a 1S or a 2S battery pack - 1S is a
lot easier to chanrge since no cell-balancing is required.

> However you can buy the power board from a power bank without the
> batteries.  If you search ebay or better Aliexpress for 'power bank pcb'
> there's lots of them of varying form factors.  For example, a selection:
> https://www.ebay.co.uk/itm/5V-1A-2A-2-1A-Power-Bank-Charger-Module-
> Battery-USB-LED-Boost-Step-Up-PCB-Board/283407817785

That's a GOOD thought - thanks.

> (shipping from China might take a while at the moment)
>
 Indeed.


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Martin    | martin at
Gregorie  | gregorie dot org

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