When I don't want to use mine with battery I use a PowerBook 100 series plug as its just higher amperage same voltage. I don't suggest 12 volts as no input is higher than 9 volts (pram 9 volt battery).
> Date: Mon, 1 Apr 2013 15:51:59 -0700 > From: [email protected] > Subject: Re: Macintosh Portable start-up problem > To: [email protected] > > The Macintosh Portable had an odd power system. It always ran off the > lead-acid battery. > > When plugged in, the AC adapter fed power to the battery while the computer > was drawing it out. Woe betide the Portable owner who let the battery > discharge too much! > > There are better lead-acid batteries that can withstand deeper discharge and > there are ways to use other types of 12 volt batteries if you change the > charging circuitry. > > Some people have de-portabled theirs by eliminating the battery and > connecting a 12 volt AC adapter (with good regulation and filtering!) > directly in place of the battery. > > -- > -- > ----- > You received this message because you are a member of the Vintage Macs group. > The list FAQ is at http://lowendmac.com/lists/vintagemacs.shtml and our > netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml > To post to this group, send email to [email protected] > To leave this group, send email to [email protected] > For more options, visit this group at > http://groups.google.com/group/vintage-macs > > Support for older Macs: http://lowendmac.com/services/ > --- > You received this message because you are subscribed to the Google Groups > "Vintage Macs" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > For more options, visit https://groups.google.com/groups/opt_out. > > -- -- ----- You received this message because you are a member of the Vintage Macs group. The list FAQ is at http://lowendmac.com/lists/vintagemacs.shtml and our netiquette guide is at http://www.lowendmac.com/lists/netiquette.shtml To post to this group, send email to [email protected] To leave this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/vintage-macs Support for older Macs: http://lowendmac.com/services/ --- You received this message because you are subscribed to the Google Groups "Vintage Macs" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/groups/opt_out.
