[NTLK] Battery Level Indication with Rechargeables in AA Tray

[Kevin LaCombe]

Here's the Wayback link to Marco Mailand's site and his battery tray mod.  Some other good links too!

http://web.archive.org/web/20020609003605/http://slsbd.psi.ch/~mmailand/Newton.html


On Nov 16, 2014, at 12:52 PM, Tony Morrow <gizmo1482 at gmail.com> wrote:

> Tony Khan’s "My Apple Newton" blog, as always, has details on that. Davis Remmel created a model that is available online and can be 3D printed.
> 
> http://myapplenewton.blogspot.com/2013/03/print-your-own-battery-tray-part-2.html
> 
> -Tony Morrow
> 
> On Nov 16, 2014, at 11:57 AM, Dennis Swaney <romad at mac.com> wrote:
> 
>> Wasn't someone also working on a 3D printer design?
>> 
>> Sincerely,
>> Dennis B. Swaney
>> 
>> "I think, therefore I Mac"
>> 
>> On Sat, Nov 15, 2014 at 9:09 PM, Anthony Morrow <anthonydmorrow at gmail.com>
>> wrote:
>> 
>>> Sonny Hung built two rechargable battery tray prototypes several years.
>>> His information is documented on Flickr.
>>> https://www.flickr.com/photos/sonnyhung/sets/72057594074185913/
>>> https://www.flickr.com/photos/sonnyhung/sets/72057594079049821/
>>> 
>>> 
>>> On Nov 15, 2014, at 11:30 PM, Kevin LaCombe <my_newton at wavecable.com>
>>> wrote:
>>> 
>>>> I can't find the link at the moment but I have a printed page (from
>>> Marco Mailand I think?) that details how he did the modification of a AA
>>> tray and the idea of a switch if you want to load alkalines as well.
>>>> 
>>>> On Nov 15, 2014, at 7:01 PM, Woody Smith <woodysmith at me.com> wrote:
>>>> 
>>>>> This is in fact a challenge. I scavenged thermister and polyswitch from
>>> an eMate battery pack. Thermister requires two contact pads and wires
>>> soldered to them, the difficult part is keeping the wires from interfering
>>> with the batteries. I ran them on the outside taking advantage of the
>>> alignment channels, trimming the tracks inside the silo was necessary to
>>> allow space. There is room at the end opposite the contacts for the
>>> Poliswitch. I cut the wire connected to the spring and managed to bridge
>>> the gap with the switch.
>>>>> 
>>>>> The Poliswitch is only necessary if you need it. If you need it and it
>>> isn’t there, these batteries can get extremely hot.
>>>>> 
>>>>> Woody
>>>>> 
>>>>> 
>>>>>> On Nov 15, 2014, at 7:27 PM, Andrei Chichak <newton at chichak.ca> wrote:
>>>>>> 
>>>>>> You know, since the 2x00 used NiMH batteries in the bricks, it
>>> wouldn’t take much effort to rewire a AA sled to charge the cells.
>>>>>> 
>>>>>> I would think that the biggest hurdle would be adding an extra contact
>>> for a temp sensor. The polyswitch is for protection and - we’re all butch
>>> here grunt grunt - it can be deleted.
>>>>>> 
>>>>> ----------------------------------------------------------------------
>>>>> 
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>>>> 
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>>> 
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>>> 
>> ----------------------------------------------------------------------
>> 
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>> The Newton Glossary           http://splorp.com/newton/glossary/
> 
> ----------------------------------------------------------------------
> 
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> The Official Newton FAQ       http://splorp.com/newton/faq/
> The Newton Glossary           http://splorp.com/newton/glossary/