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25,000mAh PowerBook 1xx battery

Posted by: 3lectr1cPPC on 2023-12-24 10:27:25

Sorry, didn't mean to come off as blunt.

You said "the original battery is" without specifying the model. That's implying that all the 100 series packs are lead acid, when it was only the one. The thread is titled PB 1x0 but the STL models and links and all else are referring to the 140-180c packs, not the one-off 100 pack. I don't think OP owns a 100 either.

OP didn't write NiMH, but the batteries they showed are Duracell NiMH rechargeable AAs. I don't think any of the major brands sell NiCad AAs anymore, from what I've seen they can be pretty tricky to find nowadays. In either case they're going to be one of the two though.

Posted by: Phipli on 2023-12-24 10:34:29

Sorry, didn't mean to come off as blunt.

You said "the original battery is" without specifying the model. That's implying that all the 100 series packs are lead acid, when it was only the one. The thread is titled PB 1x0 but the STL models and links and all else are referring to the 140-180c packs, not the one-off 100 pack. I don't think OP owns a 100 either.

OP didn't write NiMH, but the batteries they showed are Duracell NiMH rechargeable AAs. I don't think any of the major brands sell NiCad AAs anymore, from what I've seen they can be pretty tricky to find nowadays. In either case they're going to be one of the two though.

All I'm checking is that they're not abusing batteries and the thread didn't identify either chemistry. I don't really do Powerbooks, so I googled what battery the PB 100 had.

If we're happy that they're replacing the original batteries with ones that use a similar charging process, there aren't any sensors needing sorting etc and nobody is going to burn a house down, then that's all fine and I'll go back to what I was doing.

I used to have a webpage saved that went into excellent detail in how each type of battery should be charged. It was great for charging weird battery packs from my bench PSU. Can't see the page after searching though.

Posted by: 3lectr1cPPC on 2023-12-24 10:37:22

I'd be interested in seeing that website as well. That's something I'd like to learn. I know a bit about that stuff but not much.
But yeah, for the future, the PB100 is different in every single way from the rest of the series. Sounds like you got caught by Apple's naming confusion.

Posted by: Phipli on 2023-12-24 10:46:47

Sounds like you got caught by Apple's naming confusion.

Well... This thread is technically also about the PB100. It doesn't say it isn't. I'd say I got caught by a post that didn't have all of the detail.

Posted by: 3lectr1cPPC on 2023-12-24 10:47:27

Either way, no big deal.

Posted by: 360alaska on 2023-12-24 10:50:56

This is the design I sell:

Lithium Polymer battery for PB100 (and maybe portable)

Thats kind of oddball.... That leaves alot of room for error because the computer cant really use the battery pack as a part of the load if the AC Adatper gets weak. Not to mention switching. I would say use a boost converter, but we would need a clear way to tell if your into charge mode or...

68kmla.org

Posted by: luRaichu on 2023-12-25 11:05:35

Yeah, I'm rebuilding the battery pack used in the PB 140-180 series machines. Original PB 100 batteries are lead-acid, but there are no modern replacement cells for that specific chemistry. Unless I'm mistaken, 360alaska's PB 100 batteries are Li-Po with a diode to prevent the PB 100 from charging it. The Li-Po battery uses its own charging circuit.

PowerBook 140-180 battery packs originally used 10 Ni-Cd "A" cells, with (what I think is?) a single thermal fuse buried inside. Modern Ni–MH cells are similar enough to the old Ni-Cd that they can be used interchangeably and as a suitable replacement. I want to use Ni–MH AA cells as they're readily available and I have many at hand.

Posted by: luRaichu on 2023-12-27 09:32:14

I don't think it's possible to use battery holders inside the original PB battery shell. There's simply not enough room for that.

Macintosh PowerBook 145/160/170 battery replacement

Glad to hear it's working out okay - I was a little worried that some tweaks I made to the external contact area on the battery might have messed up the spacing. People always seem to be more interested in 3D printers when they see an example of how they can print replacement / repair parts...

68kmla.org

Which means I'll likely copy this design, although I won't be able to remove those Duracells very easily.

Posted by: 3lectr1cPPC on 2023-12-27 09:35:45

You’ll likely want to get a battery spot welder for the best results doing something like that.

Posted by: luRaichu on 2024-01-19 07:53:19

I got my PowerBook 180 now, with a weird aftermarket 1xx battery pack that was too dangerous to open. I need a 3D-printed shell, however there aren't any really good models available.

Apple PowerBook 1xx Battery Shell by GGigabiteM

This is a recreation of the Apple PowerBook 1xx battery housing so that new battery packs can be made up for the original PowerBook line. This model is the culmination of weeks of work experimenting with multiple iterations of the design to have one that works reasonably well. While it is not...

www.thingiverse.com

There's this one but for some reason it doesn't seem to have rails for the battery door

Posted by: luRaichu on 2024-01-23 14:47:53

I sent jcs a DM last Friday asking for his PowerBook battery 3D model. Haven't heard back since.
I'll have to take a chance with the models that are publicly available.

Posted by: luRaichu on 2024-02-21 11:11:28

Cooked up my own edited battery model in Blender, I'll print it ASAP and see how it goes...

Posted by: luRaichu on 2024-04-14 14:13:31

I posted my build on the main battery replacement thread → https://68kmla.org/bb/index.php?thr...-160-170-battery-replacement.1417/post-529595

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