...[Battery]...

"There seems to be a lot of interest regarding the T100x battery pack and its internal construction. Mr. Jable has more than adequately described the internal layout in one of the tech notes. Attached is a scanned image in JPEG format of the battery pack showing both sides which you might find useful. I was also able to open the battery pack without any major damage to the case. In my case two of the individual cells were bad. I have not been able to find a source for nickel-metal hydride batteries yet. If you would prefer the image in some other format or resolution please let me know..".

• jable@ix.netcom.com writes: I had one battery pack go bad - there are three rows of two each with a diode between first and second row and an overtemperature cutout between the second and third. There is also a thermister inside the pack separately connected to two of the battery pack pins.
• 4/30/97 jable writes: I did not destroy case. Slide a small knife into one side and slowly worked my way around the case popping it loose.
• The batters are nickel -metal hydride (1.2V) and each have HR marked on one end. This stands for High Capacity - Rapid Charge ( I think).
• You could replace them with the same type which is what I will probably do but with lithium ion might be a little trouble and more expensive. Lithiums usually have twice the voltage for the same size battery (3V) and I am not sure how the T100X would work with 9 volts and possibly a different charging impedence. I will probably just replace the defective cell (I'm frugal).
• ranjit@best.com writes: NiCd batteries are usually rated something like 1.25V compared to the standard 1.5V for similar non-rechargable batteries, so I wouldn't be surprised if NiMH batteries also supply a lower voltage.
• http://www.AlphaOmegaElectronics.com *may* have some batteries. http://www.powerline-battery.com has the following: (a) LTO0133H- this is the original battery and (b) LTO0133H- This is an accessory battery that fits onto the original battery. It extends the size of footprint of the computer. I don't really know (b) but that's the description they gave me.