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701CS replacement battery - dimensions / 3D model needed || ((or source for original battery shell))

Older ThinkPads from the 300, 500, 600, 700 Series, iSeries, Transnote etc.
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A_random_doood
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701CS replacement battery - dimensions / 3D model needed || ((or source for original battery shell))

#1 Post by A_random_doood » Wed Sep 30, 2020 11:33 am

Hi people!

So, the battery in this one leaked and the seller threw it away, darn it.

Anyway, I looked for some replacements online, I found two fake british companies selling it and I contacted them (it's actually chinse based) and they don't have it in stock either.

So as a last resort, I have decided that I'll make a 3D model for it, make the circuitry myself and 3D print it!

Hopefully it will work.

I just need precise and exact dimensions for the small indent, the angle of the curve and other things.

Or a source for a replacement battery that someone knows, then I'll make a 3D model out of it and publish it. I want to make a 3D model anyway for future people who choose to refurb this awesome laptop!

Thanks :mrgreen:

Thinkpad4by3
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Re: 701CS replacement battery - dimensions / 3D model needed || ((or source for original battery shell))

#2 Post by Thinkpad4by3 » Wed Sep 30, 2020 2:20 pm

I have a battery I can make a model.

Also: these old laptops are *VERY* finicky about the ESR of the power they're supplied with. The battery must be spot welder or soldered together or it will not boot the laptop. Also should be good for about 8-10 amps PEAK power and 2 amps continuous if you are going to make a lithium based pack. Alkaline cells will absolutely not work, neither will zinc carbon.
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The efficiency of two screens equally sized with equal numbers if pixels are equal. The time spent by a 4:3 user complaining about 16:9 is proportional to the inefficiency working with a 16:9 display, therefore the amount of useful work extracted is equal.

hjanzen
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Re: 701CS replacement battery - dimensions / 3D model needed || ((or source for original battery shell))

#3 Post by hjanzen » Fri Dec 11, 2020 11:03 am

For battery have a look here

http://www.komotch2.com/tps/701.htm
600X PIII 650MHz 576MB, 701C DX4 75MHz 40MB, T61

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