[NTLK] USBC Rechargeable MP2X00 Batttery

[Apple Newton Fan]

What about Li-Ion cells? They do not swell. Even if you completely discharge them. And they do not have a memory effect. 

Cheers 
Pawel

Sent from my Newton MessagePad 2100

> On 28 Aug 2025, at 17:56, Craig Goodwin <cmgoodwin1 at gmail.com> wrote:
> 
> I’m feeling daft that I have a 3D printer and this never occurred to me. I’d like to get the stl files and make one as a little project if they are shared. If a bulk run helped lower costs a bit for folks, either parts or built I’d buy one also.
> 
> One thing I’d say, and maybe this is just my experience. Every one of those foil pillow batteries I’ve ever had swell at some point. I’d be worried about it in my newt especially as they go unused for a long duration sometimes and I may forget to remove them.
> 
> I think 18650’s are too much bigger than a AA to fit, but is there any other “solid case” battery that won’t expand if “abused” by being left idle too long? Or are the pillows small enough that they could have a large amount of swelling room in the case without impacting the 3D print?
> 
> As awkward as it’d be, that’s almost got me thinking about an external pack that connects to a dummy battery tray, but then would you just have a step up converter on the pack and connect it to the power barrel jack socket with a right angle connector?
> 
> Craig
> ----------------------------------------------------------------------
> 
> https://newtontalk.net
> https://bitbang.social/@newtontalk
> https://twitter.com/newtontalk