Thread
Almost had a working powerbook 150
How to convert Amps to Watts
I(A) = P(W) / V(V)
I(A) = 17(W) / 7.5(V)
2.2666(A) for PowerBook 150 AC Adapter
2.533A = 19W @ 7.5V for the higher Wattage 100 Series PowerBooks
ISTR someone mentioning that the specs of some of Apple's AC adapters don't jibe with Ohm's Law . . . dunno, need input. mcd, you must have them all, what are the Amperage specs on the other model numbers?
I(A) = P(W) / V(V)
I(A) = 17(W) / 7.5(V)
2.2666(A) for PowerBook 150 AC Adapter
2.533A = 19W @ 7.5V for the higher Wattage 100 Series PowerBooks
I didn't see that anywhere in the table. I haven't got the 19W or 24W adapters to check the specs, do you have them?Even the one listed for 17 watt and 19 watt say 7.5V X 2.0A.
ISTR someone mentioning that the specs of some of Apple's AC adapters don't jibe with Ohm's Law . . . dunno, need input. mcd, you must have them all, what are the Amperage specs on the other model numbers?
The Quicktake 100/150 uses the same M4662 AC Adapter as the Powerbook 165c/180c, I have one here with the box. Its a 24watt power supply 7.5v rated at 3A.
http://www.ebay.com/itm/281102652682
I also have the "Low Power" APS-17adp which is 7.5v rated at 2A. It works fine with my Powerbook 165. I highly doubt its different from the M5651, just a newer revision that came out after the 24w/3A M5652/M4662 adapters hit the scene. The "Low Power" terminology was likely needed after the higher amperage adapter was released to allow customers to identify it from the higher power adapters even though the 3A version had "24w" molded onto the DC jack.
http://www.ebay.com/itm/281102652682
I also have the "Low Power" APS-17adp which is 7.5v rated at 2A. It works fine with my Powerbook 165. I highly doubt its different from the M5651, just a newer revision that came out after the 24w/3A M5652/M4662 adapters hit the scene. The "Low Power" terminology was likely needed after the higher amperage adapter was released to allow customers to identify it from the higher power adapters even though the 3A version had "24w" molded onto the DC jack.
I wouldn't assume anything about these adapters. My guess is that the M5652 adapter lacks the overcurrent protection circuitry of the M4662 which makes that "universal" replacement usable across the entire 100 series, with the notable exception of the PB150 according to the linked chart.
I'm also wondering if the M4662 is safe to use with the Macintosh Portable. It's not listed as compatible, but the table is for PowerBooks, which excludes the luggable.
I'm also wondering if the M4662 is safe to use with the Macintosh Portable. It's not listed as compatible, but the table is for PowerBooks, which excludes the luggable.
I'm gathering from all the work that uniserver has done nothing but the original adapter should be used with the portable as the power management IC's were not made to power on from the power port. I did it until I called my battery in my portable non backlit but I won't chance it as he has a stack of bad boards with power management issues.
Weird that the 7.5 x 3.0A is for the 180. I have the 180 but not that cord, I use th low power ones I have. So am I hurting the power supply using it?
Weird that the 7.5 x 3.0A is for the 180. I have the 180 but not that cord, I use th low power ones I have. So am I hurting the power supply using it?
My guess is that the Portable, the 100 and 150 all share the same kind of issues with unregulated power supplies. It almost makes sense for the 100, but it doesn't make a whole lot of sense in the case of the 150 though, since it was the last of the 1XX series.
I found what looks like an inaccuracy in tht Apple Page. They have battery Model. No. M4654 (the one that came in my 150) listed as 2.9Ah in the footnote, but as 2.5Ah in both places it appears in the table.
Still waiting for some more info to appear. Meanwhile, I need to check the UM to see if running the 100 without a battery is verboten . . . Luggable UM as well.
I found what looks like an inaccuracy in tht Apple Page. They have battery Model. No. M4654 (the one that came in my 150) listed as 2.9Ah in the footnote, but as 2.5Ah in both places it appears in the table.
Still waiting for some more info to appear. Meanwhile, I need to check the UM to see if running the 100 without a battery is verboten . . . Luggable UM as well.
If you have a 180 and not the 180c, you should be fine with that adapter. The 180c and 165c will not boot with a 2A adapter and a flat battery as the TFT color screen pulls a lot more juice than the gray scale one.Weird that the 7.5 x 3.0A is for the 180. I have the 180 but not that cord, I use th low power ones I have. So am I hurting the power supply using it?
I'm sure the luggable running on anything but battery is bad for the motherboard but as for the 100 I would guess without a floppy it would be fine in comparison as one they made them laptops they were sure to be plugged in and used as they even made non battery weights to fit in the battery slot. The portable was made to be a portable Mac not a portable laptop. It never caught on but that's what they said they were going for.
Nope, they made weight saving accessory compartments as replacements for the 190/5300's FDD and later the Pismo's FDD/Optical bay. Those are the ones with which I'm familiar anyway, I'll bet there are more, ISTR something about one for the 1400. One for each PB type after the 1xx series maybe? I've never heard of replacing the battery with one, unless you count the Pismo's second battery.
The PowerBook 100 is supposed to be the Luggable as slimmed down for Apple by Sony, no substantial changes were made to the overall spec from what I gather. That's why I want to check what those two User Manuals have to say about running off AC Adapter without a battery in circuit.
The PowerBook 100 is supposed to be the Luggable as slimmed down for Apple by Sony, no substantial changes were made to the overall spec from what I gather. That's why I want to check what those two User Manuals have to say about running off AC Adapter without a battery in circuit.
You can check but the luggable board is huge in comparison, and the battery is 6 volts and pushes a full size HDD and full size floppy drive, with full size keyboard and trackball, in comparison the 1XX series is a 7 volt battery and it didn't last as long as the "portable battery operated Macintosh computer". So with all things voltage not being equal between the portable and 100 I wouldn't think power management is either.