So, I bought a portable…

[techknight]

its because the DC input goes through a resistor... need full battery voltage to switch on the FET

 

[imactheknife]

Ok, so got new battery today and popped it in. New 9 volt and she is golden, works great. So now i have to figure out how to get a system onto blue scsi. So when not in use, or while using it with new battery is it needing to be plugged in or only when battery needs a charge?

 

[LaPorta]

Lead acid batteries do not like to be discharged at all. They need to be kept up at all times if possible. You can either keep it continuously charged in the Portable, or as I do, I keep it on an automotive-style battery maintainer when I have the Portable in storage. One not-so-great thing about the Portable is that it pretty much draws as much in sleep as it does shut down: there’s no true “off”. The battery in mine will fully discharge in three days if not plugged in in some manner.

 

[imactheknife]

Lead acid batteries do not like to be discharged at all. They need to be kept up at all times if possible. You can either keep it continuously charged in the Portable, or as I do, I keep it on an automotive-style battery maintainer when I have the Portable in storage. One not-so-great thing about the Portable is that it pretty much draws as much in sleep as it does shut down: there’s no true “off”. The battery in mine will fully discharge in three days if not plugged in in some manner.

Ok, so good to keep plugged in with original power adaptor?

 

[desertrout]

Ok, so good to keep plugged in with original power adaptor?

Either that or remove the battery when you're not using it (and also remove the 9V). It really depends on how long you're keeping the thing on the shelf. I don't use mine a whole lot (once every few weeks), so I don't have a 9V in it, and I don't put the battery in it until I use it. I don't care if settings are lost, it's really the only reason to keep the batteries in. The 9V isn't even required, as it's merely there to power the system while you have the main battery out (like while swapping it). An SLA battery should be fine without a recharge for 4-5 months, so as long as you're using the Portable / recharging the battery a few times within that span of time, you're fine.

 

[imactheknife]

Either that or remove the battery when you're not using it (and also remove the 9V). It really depends on how long you're keeping the thing on the shelf. I don't use mine a whole lot (once every few weeks), so I don't have a 9V in it, and I don't put the battery in it until I use it. I don't care if settings are lost, it's really the only reason to keep the batteries in. The 9V isn't even required, as it's merely there to power the system while you have the main battery out (like while swapping it). An SLA battery should be fine without a recharge for 4-5 months, so as long as you're using the Portable / recharging the battery a few times within that span of time, you're fine.

Ok, excellent, thanks for the info. Is system 6 the best for this? Only have 1 big meg of ram lol

 

[LaPorta]

I'd advocate for 6 with that. 7 will be a massive kludge with that paltry amount of RAM. Stick with 6. Any chance for you to find one of those RAM cards around?

 

[desertrout]

Agree re: System 6. Also worth consideration: https://androda.work/product/macintosh-portable-7-megabyte-ram-card/

 

[imactheknife]

I'd advocate for 6 with that. 7 will be a massive kludge with that paltry amount of RAM. Stick with 6. Any chance for you to find one of those RAM cards around?

No, it came with a modem. Will have to buy the ram card when more are in stock. This portable almost boots instantly with blue scsi, unreal.. have system 6 bare bones on it right now.

 

[LaPorta]

They are in stock, actually. Just buy the simple one. No need for the switch one since you have a non-backlit.

 

[imactheknife]

So I finally was able to install a “full” 6.0.8 system on this. I dont have a “brightness” slider but a contrast slider which does nothing. All other control panels seem good. Is it supposed to be contrast?

 

[3lectr1cPPC]

You're gonna need the Brightness Control Panel v1.3 IIRC. I'll try to find a link for it.

Edit: Portable control panel, sorry.
Link: https://macgui.com/downloads/?file_id=20773

 

[imactheknife]

You're gonna need the Brightness Control Panel v1.3 IIRC. I'll try to find a link for it.

Edit: Portable control panel, sorry.
Link: https://macgui.com/downloads/?file_id=20773

Ok thanks!! So this is weird, i opened up the control panel on my iBook g3 clamshell and it actually controls the brightness lol.. i am using the ibook to transfer files to floppy.

 

[imactheknife]

Well, no change. Still shows contrast.

 

[LaPorta]

This should work, however, that control panel looks different than the one I have on my Portable. Hold on and let me find the one I have.

 

[LaPorta]

This is the one from System 6.0.7. This should work...unless there is a hardware issue.

 

[imactheknife]

This is the one from System 6.0.7. This should work...unless there is a hardware issue.

Can someone send me a 4 gig or 2 gig blue SCSI sd card with the proper system folder lol.. this is driving me nuts...still nothing. says contrast. Will gladly pay for it

 

[3lectr1cPPC]

You have an M5126 portable, right?

 

[imactheknife]

You have an M5126 portable, right?

no 5120, lol guess that makes sense now...good grief..

 

[3lectr1cPPC]

So you don't have a backlight. No version of the brightness panel is going to work.