powerbook 1400 problems

[apple tech geek]

just got one of my new powerbook 1400c
but 3 problems
1 the pram it looks like 2 button cells they only hold a small charge but it doesnt hold time can i just use 2 regular button cells or not?
2 flat battery they use ni hm how can i rebuilt it ? it has 4 long cells
3 track pad does wierd things like gets stuck/twitcing mouse pointer any idea how to fix it? i took it apart today to check all parts but no problems seen
here details about batt cell
sanyo ni-mh twicell model 8hr 4 /3au 9.6v3500mah akh
i wana rebuilt it with ni mh or with a alternative source
thx for helping atleast

 

[MacTech68]

The PRAM battery is rechargeable by the laptop itself - it will need to be on charge for about 24 hours and only holds date and time for a short time (according to Apple "a few minutes").

It cannot be replaced by anything else other than a rechargeable Lithium - don't try any other type.

According to Apple it's a 50mA/h 3V rechargeable Lithium pack - that makes it 1.5V 50ma/H per cell.

As for the main battery, you should try to find the original Sanyo cells. Which would be a "HR-4/3AU" @ 3500maH x 8 Cells - expensive, but worth it. If you can't find them, then an exact replacement with the same physical size and electrical ratings should work. Original size is 17mm diameter and 67.5mm height including solder tags.

You must take care to replace the batteries in the exact way they are originally connected and solder tag types should be a little easier to work with.

 

[MikeatOSX]

1 the pram it looks like 2 button cells they only hold a small charge but it doesnt hold time can i just use 2 regular button cells or not?

I've written a PowerBook PRAM battery replacement guide, it's in German and I didn't have the time yet to translate it into English.
But on the pictures and in the text you can see, which replacement PRAM batteries should be used.
For replacing the PB 1400 PRAM batteries, you have to disassemble the whole PowerBook 1400 (not the display). One guy claims he did it with a pair of tweezers without disassembling....
BTW: PowerBooks 1400c/166 are fitted with two pairs of PRAM batteries, other 1400 have one pair.
https://www.mediafire.com/download/95msic89udzjigd

 

[apple tech geek]

Is there anyway to mod the batt so it keeps time and dat but cant run the laptop? I hate resetting it
Plus every time it has bern of power the moment i plug it in it turns on by it self and the brightness is by 0
[doublepost=1478943748][/doublepost]My powerbook doesnt boot after a night of sleep and charging it waked up from sleep fine but when i unplug and Replug the power and nothing happens the green led shows realy faint when batt and charger is unplugged and goes darker when i pres powerbutton

 

[CooperBox]

I've written a PowerBook PRAM battery replacement guide, it's in German and I didn't have the time yet to translate it into English.
But on the pictures and in the text you can see, which replacement PRAM batteries should be used.
For replacing the PB 1400 PRAM batteries, you have to disassemble the whole PowerBook 1400 (not the display). One guy claims he did it with a pair of tweezers without disassembling....
BTW: PowerBooks 1400c/166 are fitted with two pairs of PRAM batteries, other 1400 have one pair.
https://www.mediafire.com/download/95msic89udzjigd

Excellent guide, which I've downloaded/saved for future reference. I now have a few oldish Powerbooks that will benefit from this. Thank you!

 

[MacTech68]

Is there anyway to mod the batt so it keeps time and dat but cant run the laptop? I hate resetting it
Plus every time it has bern of power the moment i plug it in it turns on by it self and the brightness is by 0
[doublepost=1478943748][/doublepost]My powerbook doesnt boot after a night of sleep and charging it waked up from sleep fine but when i unplug and Replug the power and nothing happens the green led shows realy faint when batt and charger is unplugged and goes darker when i pres powerbutton

You'll need to reset the power manager.

See:
https://support.apple.com/en-us/HT1781#faq7

EDIT: as for the trackpad, use something like window cleaner on a soft cloth to clean the trackpad. Ensure your fingers/hands don't have greases or oils on them.

 

[apple tech geek]

You'll need to reset the power manager.

See:
https://support.apple.com/en-us/HT1781#faq7

EDIT: as for the trackpad, use something like window cleaner on a soft cloth to clean the trackpad. Ensure your fingers/hands don't have greases or oils on them.

Do i need reset everytime ?

 

[MacTech68]

Do i need reset everytime ?

Only if the Power Manager gets corrupted, which may not happen all the time.

 

[apple tech geek]

found the batt http://www.ebay.nl/itm/400798105153 but i cant order it i see i want one shipping to the netherlands