[NTLK] rechargeble battery pack for messagepad 2100

Forrest newton_phoenix at mindspring.com
Tue Aug 28 03:29:59 EDT 2018

Someone else asked this question not too long ago, and here is the short answer:

Yes, it is possible. I have recalled several  MP2x00 battery packs, and so have many others. Frank (Gruendel) offers the service for a small fee.

It’s not particularly difficult; the hardest part IMHO is getting the new batteries back into the case so that it fits properly within the Newton. Frank tells how: https://www.pda-soft.de/mp2k_battery_pack.html .

I decided to go with the AA Alkaline battery tray (or sled, as it is also known) and NiMH rechargeable option. There is currently an email thread running right now about best types to use, what charger, etc.

Essentially you would get an AA NiMH wall charger and 8 NiMH AA cells (of course). Charge the first set of 4, put them in the tray, install the tray in the Newton. Put the second set of cells in the charger. That way you always have a fresh set available.

You CANNOT charge the cells using the Newton’s AC adapter, as you could with the original battery tray. First of all, the alkaline battery tray is designed in such a way that the Newton “knows” that’s what it is. Secondly, there is no thermistor in the tray to let the Newton know when they are charged.


Sent from my T-Mobile iPhone 6S Plus

> On Aug 27, 2018, at 4:42 AM, Rufus Kohn <rufuskohn at gmail.com> wrote:
> Hi,
> I wonder if anybody has succesfully repacked their battery pack. Is that
> possible? If so which diffeculty degree does such an opperation have?
> -- 
> Met hartelijke groet,
> Rufus Kohn
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