The voltage from that four cell LFP back is much too?high for the sBitx. A three cell LFP would be a better option, though even that is a bit outside the specified 6-9V range when fully charged. Three cell LFPs are not as widely available as the four cell models; Bioenno makes them in three sizes, all of which are expensive for their size.
We should be looking at LiFePo4 packs:
Mike N2MS
> On 04/17/2025 9:44 AM EDT Giuseppe Stancanelli - IU0OYC via <g.stanca=[email protected]> wrote:
>
>
> Hi
>
> I have some LiPo power packs, 2S, with various power (capacity) ratings. Some are rated for a discharge rate over 20-30 times the rated nominal capacity.
> I have no economic reason or interest in suggesting this, but i think that can be a smart solution to power the zbitx.
> Only for example, the following battery as 7.4 nominal voltage, 3600 mA capacity, size65 x 50 x 28mm and weight 165 g. Price under 13 €
>
>
> Another interesting option is the hardcase batteries: this one has a capacity of 3000 mA, size 93 x 47 x 19 mm, weight 143g, and price a little more than 11€.
>
> 73 from Italy
> Giuseppe IU0OYC
Shirley Dulcey KE1L