Macintosh Portable battery replacement

[Retro Rider]

I got a Macintosh portable with the original battery, and of course, the battery was dead and wouldn't charge. I looked online about how to (try and) turn it on. It worked but the only weird thing about it is that I need to use a Powerbook power adapter with it (good thing it came with both a Macintosh portable charger and Powerbook charger) and I kinda got to fiddle with it a little bit to get it on. But, I turned it on for the first time and was very pleasantly surprised when I saw the happy mac! Now, I need a new battery and I know you can make one for super cheap. I know that it needs to be a 6v/5amp battery though. I'm pretty sure you can get one at Walmart for around $10, maybe like this one. You would also need gator clips (or other wires), but I don't know of a store nearby that sells them or how much they would be. Any help or advice?

 

[MOS8_030]

In the past I have used a 0809-0012 Cyclon Battery trimmed down to fit into the original battery case.

 

[Retro Rider]

Can you send a link? I can't really find it, but the ones that I think I've found are $70+. Does the portable only take lead-acid batteries, because those die easily.

 

[Retro Rider]

Also, would you be able to use a 6 volt 4.5ah, I'm having a pretty hard time finding 6 volt 5ah lead acid batteries in any stores

 

[MOS8_030]

  yes, it just won't last as long between charges.

Batteries Plus usually stocks various sealed lead-acid batteries.

 

[Retro Rider]

I've found a battery, but now I need a wire to connect it to the terminals. What/where's the best place to get them (it has F1 terminals)? 

 

[jhorvath911]

Just a quick bit of info don't use the PowerBook adapter, you're going to kill the portable.

Also you should have this topic moved to the 68k PowerBook forum, its more likely to get noticed by those who can help.

 

[Retro Rider]

Just a quick bit of info don't use the PowerBook adapter, you're going to kill the portable.




 

Why though? What'll happen? It seems that the Macintosh portable charger isn't working

 

[MOS8_030]

The Portable is meant to be operated with a good battery in it at all times.

The charger for the Portable isn't meant to (can't) power the Portable without a battery.

Using the Powerbook charger may make the Portable work for a while but it will damage circuitry and kill the Portable.

 

[Gorgonops]

Eds: moved to the proper forum.

 

[Retro Rider]

Eds: moved to the proper forum.

Thanks

 

[Juror22]

The Portable is meant to be operated with a good battery in it at all times.

The charger for the Portable isn't meant to (can't) power the Portable without a battery.

Using the Powerbook charger may make the Portable work for a while but it will damage circuitry and kill the Portable.

I cannot stress enough that this is a fact - DO NOT attempt to start the Macintosh portable with anything other than the correct charger and both fully functioning  batteries.  Oh, and test the Macintosh portable's correct charger to see if the output voltage is correct - some of them need to be recapped by now.

The first one I bought died from this exact scenario, before we knew it was a thing.

Its too bad that bad information on the internet can't be rescinded or at least annotated.  New folks are going to keep finding this bad advice forever.

 

[Retro Rider]

I haven't done it too much, at least I hope not, I think only 2 or 3 times. I've been looking for replacements found one but idk how the internal battery connectors are. Just so I'm clear, I still don't have the batteries I'm talking about

 

[bibilit]

You can use this one as a replacement

https://www.amazon.com/Panasonic-4-5Ah-Sealed-Lead-Battery/dp/B000PHD6DG

Will fit in the original enclosure with a bit of work...or not, apparently two suppliers made the casing for the original battery, and one is thicker than the other one.

You should keep the two gold plated  units of course.

 

[Retro Rider]

I found one (here) idk how to connect it to the connectors though.

 

[Retro Rider]

Would it be better to open the origional battery and replace it in there?

 

[Retro Rider]

I know this is so late, but do you think you could get a lithium ion battery w the specs needed and put it in the portable? It would be better in terms of charging since lithium ions don't completely die when the capacity is depleted.

 

[MOS8_030]

Lithium ion batteries require a charger and charging system designed for lithium ion batteries.
The Portable charger and charging system is designed for a sealed lead-acid battery.
So, no, you can't use a lithium ion battery in a Macintosh Portable, at least not without extensive modification of the Portable and the charger.

 

[Retro Rider]

Lithium ion batteries require a charger and charging system designed for lithium ion batteries.
The Portable charger and charging system is designed for a sealed lead-acid battery.
So, no, you can't use a lithium ion battery in a Macintosh Portable, at least not without extensive modification of the Portable and the charger.

oh, ok that makes sense.

Can you just put it in the portable, and then charge it in a lithium ion charger when it needs to be charged though?

 

[SuperSVGA]

You could try a LiFePO4 battery, such as this one.