[NTLK] USBC Rechargeable MP2X00 Batttery

[L.W. Brown]

💖
-L.W. Brown

> On Sep 5, 2025, at 20:44, Elias Basse <kd5jfe at gmail.com> wrote:
> 
> Just an update on the battery pack project.
> 
> I have had success in powering the Newton with a lipo cell and the board
> that I have found.
> 
> I have also had a setback where when plugging in the USBC the board takes
> approximately 1 second to switch from input to output on the board.  This
> causes the newton to give the dreaded battery removed message.
> 
> I have a couple options that I am weighing on this:
> 1) Change to a different board - Space is at a premium
> 2) Install a 5v supercapacitor (I have barely enough space) to cover the
> brief power loss when connecting a USB charger, simple fix and costs a
> couple extra dollars. This would be ok while the newton is "Off" or in
> standby mode for you to switch power over.
> 
> I have also decided to get some 14500 batteries and model these in
> parallel, however this will take a bit more time from amazon.
> 
> The design I am currently working on from scratch is a 3d printed battery
> that will be in two halves that will snap (and later glue) together into a
> single battery pack which is seamless.  I am still working on design as I
> have basically had to design the battery pack from scratch.  My cad skills
> are ok, but I'm still learning.
> 
> While waiting on parts, I am compiling a project for PPP to WiFi using an
> ESP-32, a TTL/232 Serial converter, and some dodgy wiring to bring wifi to
> the newton using serial from a dev board.  If this works well enough, I am
> going to make a sled for it to fit in the newton and connect to the
> internal port. (Or I can make this an external module smaller than the
> original Newton modem).
> 
> All the best, and thank you all for the support.
> 
> Best Regards,
> Elias
> ----------------------------------------------------------------------
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