Re: [M100] With apologies; battery issue
On Sun, Aug 9, 2020 at 3:53 PM Doug Jackson wrote: > Hi Everybody, > > I used a 0.22F Super Capacitor and it worked beautifully - It is only > used to power the RAM when you are changing batteries, so I don't > understand why it would be an issue. It gives me over 20 minutes of > battery out time, while I scour kitchen drawers looking for AAs. > > It works, it just works differently. If you are fastidious about keeping fresh batteries in your Model T and never letting them run down, and/or you're always connected to a wall wart it makes no difference. If you're like me and get busy with other things and go back to the model T you set aside it's a pleasant surprise to go back days or weeks later and see that the RAM file system is still intact. It's one thing I think Kyocera/Tandy got exactly right. The RAM filesystem is a filesystem. It deserves its own independent long term power supply. -- John.
Re: [M100] With apologies; battery issue
A super cap will work that is not the problem. The issues come down to making one fit, holding it in place, and that it does not back up nearly as long as the original NiCad did. None of these may be deal breakers for someone, I thought it was fun to try. For the average user popping in a NiMh is easier as it is a direct swap and works the same way the NiCad did. Jeff Birt From: M100 On Behalf Of Doug Jackson Sent: Sunday, August 9, 2020 5:53 PM To: m...@bitchin100.com Subject: Re: [M100] With apologies; battery issue Hi Everybody, I used a 0.22F Super Capacitor and it worked beautifully - It is only used to power the RAM when you are changing batteries, so I don't understand why it would be an issue. It gives me over 20 minutes of battery out time, while I scour kitchen drawers looking for AAs. Kindest regards, Doug Jackson
Re: [M100] With apologies; battery issue
Hi Everybody, I used a 0.22F Super Capacitor and it worked beautifully - It is only used to power the RAM when you are changing batteries, so I don't understand why it would be an issue. It gives me over 20 minutes of battery out time, while I scour kitchen drawers looking for AAs. Kindest regards, Doug Jackson em: d...@doughq.com ph: 0414 986878 Check out my awesome clocks at www.dougswordclocks.com Follow my amateur radio adventures at vk1zdj.net --- Just like an old fashioned letter, this email and any files transmitted with it should probably be treated as confidential and intended solely for your own use. Please note that any interesting spelling is usually my own and may have been caused by fat thumbs on a tiny tiny keyboard. Should any part of this message prove to be useful in the event of the imminent Zombie Apocalypse then the sender bears no personal, legal, or moral responsibility for any outcome resulting from its usage unless the result of said usage is the unlikely defeat of the Zombie Hordes in which case the sender takes full credit without any theoretical or actual legal liability. :-) Be nice to your parents. Go outside and do something awesome - Draw, paint, walk, setup a radio station, go fishing or sailing - just do something that makes you happy. ^G ^G ^G ^G ^G ^G ^G ^G- In more laid back days this line would literally sing ^G ^G ^G ^G ^G ^G ^G ^G On Mon, Aug 10, 2020 at 8:37 AM Jeffrey Birt wrote: > I did a video on this a year or so ago. I used a super cap as an > experiment but would not recommend it. A modern NiMh batter works great in > place of the original NiCad and will back up much longer than the super > cap. While you in there have a look at the electrolytic capacitors and make > sure they aren't leaking as well. > > https://youtu.be/IGTdNMx1V1w > > I carry some backup batteries and Arcadeshopper has then as well. > > https://www.soigeneris.com/memory-backup-battery-mbat1 > > Jeff Birt (Hey Birt!) > > -Original Message- > From: M100 On Behalf Of Hiraghm > Sent: Sunday, August 9, 2020 4:41 PM > To: m100@lists.bitchin100.com > Subject: [M100] With apologies; battery issue > > Naturally after entering lurk mode I would develop an issue with my M100 > with which I need advice. > > I just replaced the 4 double-A Duracells in my M100, and when I turned it > back on, it was completely reset... hterm was missing, rexmanager was > missing, the date was back to 1900 00:00:00... > > This suggests to me that my internal battery is dead. > > Does anyone know where I can find a replacement? > > Can anyone suggest a simple walk-through of the replacement procedure? > > I've read on here where others have replaced their batteries, but I didn't > pay it much attention until now, since I'm reluctant to crack open my M100. > > Any advice would be appreciated. > > Thank you. > > > > >
Re: [M100] With apologies; battery issue
I did a video on this a year or so ago. I used a super cap as an experiment but would not recommend it. A modern NiMh batter works great in place of the original NiCad and will back up much longer than the super cap. While you in there have a look at the electrolytic capacitors and make sure they aren't leaking as well. https://youtu.be/IGTdNMx1V1w I carry some backup batteries and Arcadeshopper has then as well. https://www.soigeneris.com/memory-backup-battery-mbat1 Jeff Birt (Hey Birt!) -Original Message- From: M100 On Behalf Of Hiraghm Sent: Sunday, August 9, 2020 4:41 PM To: m100@lists.bitchin100.com Subject: [M100] With apologies; battery issue Naturally after entering lurk mode I would develop an issue with my M100 with which I need advice. I just replaced the 4 double-A Duracells in my M100, and when I turned it back on, it was completely reset... hterm was missing, rexmanager was missing, the date was back to 1900 00:00:00... This suggests to me that my internal battery is dead. Does anyone know where I can find a replacement? Can anyone suggest a simple walk-through of the replacement procedure? I've read on here where others have replaced their batteries, but I didn't pay it much attention until now, since I'm reluctant to crack open my M100. Any advice would be appreciated. Thank you.
[M100] With apologies; battery issue
Naturally after entering lurk mode I would develop an issue with my M100 with which I need advice. I just replaced the 4 double-A Duracells in my M100, and when I turned it back on, it was completely reset... hterm was missing, rexmanager was missing, the date was back to 1900 00:00:00... This suggests to me that my internal battery is dead. Does anyone know where I can find a replacement? Can anyone suggest a simple walk-through of the replacement procedure? I've read on here where others have replaced their batteries, but I didn't pay it much attention until now, since I'm reluctant to crack open my M100. Any advice would be appreciated. Thank you.