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Re: Batteries on ZbitX

 

Gordon, I was thinking of simply putting a diode in series with the power connector. Sure, you lose .65 volts across it, but it would work for reverse polarity problems, or am I missing something?

David

On Wed, Apr 30, 2025 at 4:23?PM Gordon Gibby KX4Z via <docvacuumtubes=[email protected]> wrote:

You can build this with a relay and a diode fairly inexpensively.?

On Apr 30, 2025, at 14:13, Jeff Duce via <jefe_de_estado=[email protected]> wrote:

?
I have a similar product for sBitx (), and I have considered something for zBitx.? But with the de minimus rules change staring friday, I don't think I'll be able to make affordable parts anymore.? But if there's enough interest, I can draw something up and see what the cost would be.? I was thinking of building a battery holder with built-in USB-C charging, battery bms, fuse, and polarity protection.? But I suspect that is going to be pretty expensive at low rate manufacturing (the cheapest US based board house that I can find so far is 5X my current costs).? Someone posted a very similar sort of thing from Aliexpress for just a few dollars, but that will now cost well over $100 for US buyers.

Jeff
From: [email protected] <[email protected]> on behalf of Bob Finch via <w9ya.ham=[email protected]>
Sent: Wednesday, April 30, 2025 8:31 AM
To: [email protected] <[email protected]>
Subject: Re: [BITX20] Batteries on ZbitX
?
Not quite the 5A continuous load I'd like to see for this application.

es vy 73 om de "baab" w9ya

On Wed, Apr 30, 2025 at 8:44?AM Li Cao via <licao081=[email protected]> wrote:
A new version (kit?) here:?

On Wed, Apr 30, 2025 at 8:59?AM Frank KG9H via <kg9hfrank=[email protected]> wrote:
Nice product but out of stock on either kit or built.

? ? ?Frank Krozel
? ? ? ? ? ?KG9H
Life Member, ARRL
? ? (630) 924-1600





On Apr 30, 2025, at 8:58?AM, cam1aw via <plcs=[email protected]> wrote:



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de KG9H
Life member, ARRL
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