Re: [M100] Non-Charger (Terry Cox)
New. Just replaced it. On Tuesday, April 23, 2019, 6:43:50 PM EDT, Gregory McGill wrote: original battery? If so maybe time to replace it. I had one take a couple days to charge so it would boot.. I almost wrote it off Greg On Tue, Apr 23, 2019 at 3:30 PM Chris Fezzler wrote: I removed the batteries last night and plugged into the power adaptor. Couldn't get it going again.I left it plugged in and got it to boot at lunch. Running now (6:24p ET). Turned it on and off a few times. Booting right up. I have 4 fresh batteries. I'll insert them now. Turn off. Unplug adaptor. Batteries in. Hmm. Fired right up. Well, it's either an intermittent issue or it takes much longer to charge up the internal 3.6v battery than I thought. On Tuesday, April 23, 2019, 6:03:07 PM EDT, Terry wrote: I have noticed in the past that a long stored 8201 can have PCB damage from leaking backup Ni-Cad battery whereby the ‘acid/alkali’ eats away tracks. These tracks are around the power management circuits. Might be a idea to open up and check inside. Repair is foable.
Re: [M100] Non-Charger (Terry Cox)
original battery? If so maybe time to replace it. I had one take a couple days to charge so it would boot.. I almost wrote it off Greg On Tue, Apr 23, 2019 at 3:30 PM Chris Fezzler wrote: > I removed the batteries last night and plugged into the power adaptor. > Couldn't get it going again. > I left it plugged in and got it to boot at lunch. Running now (6:24p ET). > > Turned it on and off a few times. Booting right up. > > I have 4 fresh batteries. I'll insert them now. Turn off. Unplug > adaptor. > Batteries in. Hmm. Fired right up. > > Well, it's either an intermittent issue or it takes much longer to charge > up the internal 3.6v battery than I thought. > > > > > > On Tuesday, April 23, 2019, 6:03:07 PM EDT, Terry > wrote: > > > I have noticed in the past that a long stored 8201 can have PCB damage > from leaking backup Ni-Cad battery whereby the ‘acid/alkali’ eats away > tracks. These tracks are around the power management circuits. Might be a > idea to open up and check inside. Repair is foable. >
Re: [M100] Non-Charger (Terry Cox)
I removed the batteries last night and plugged into the power adaptor. Couldn't get it going again.I left it plugged in and got it to boot at lunch. Running now (6:24p ET). Turned it on and off a few times. Booting right up. I have 4 fresh batteries. I'll insert them now. Turn off. Unplug adaptor. Batteries in. Hmm. Fired right up. Well, it's either an intermittent issue or it takes much longer to charge up the internal 3.6v battery than I thought. On Tuesday, April 23, 2019, 6:03:07 PM EDT, Terry wrote: I have noticed in the past that a long stored 8201 can have PCB damage from leaking backup Ni-Cad battery whereby the ‘acid/alkali’ eats away tracks. These tracks are around the power management circuits. Might be a idea to open up and check inside. Repair is foable.
Re: [M100] Non-Charger (Terry Cox)
I have noticed in the past that a long stored 8201 can have PCB damage from leaking backup Ni-Cad battery whereby the ‘acid/alkali’ eats away tracks. These tracks are around the power management circuits. Might be a idea to open up and check inside. Repair is foable.
Re: [M100] Non-charger
My bad. I should have labeled thread "non-booter." By not take a charge I was referencing the internal 3.6v battery must have gone dead in storage and would not take a charge. I did get it going. I used POWER CONT command and I'm letting it run today while at work. But something intermittent is going on. I need to assess behavior some more. As Arnold said, I'll be back. From: Thomas Morehouse To: m...@bitchin100.com Sent: Tuesday, April 23, 2019 8:07 AM Subject: Re: [M100] Non-charger Just a thought here - many (most?) rechargeable AA size (and AAA size) batteries are lower voltage than standard alkaline batteries. An alkaline 1.5 volt AA can be replaced with a rechargeable AA, but the rechargeable is usually labeled 1.2 volts. They're the same physical size, but supply different voltages. Thus, alkaline 4x1.5 volts = 6 volts. But rechargeable 4x1.2 volts = 4.8 volts. Tom M. On Tue, Apr 23, 2019 at 7:58 AM Jeffrey Birt wrote: What sort of T do you have that has rechargeable batteries? Jeff Birt (Hey_Birt!) From: M100 On Behalf Of Fugu ME100 Sent: Tuesday, April 23, 2019 1:49 AM To: m...@bitchin100.com Subject: Re: [M100] Non-charger Sometimes a cold boot can help after a NiCd battery replacement. Then check the Vdd and Vee voltages are +5V and –5V respectively. The voltage on the battery should be about 3.7V if it is charging OK. It could be powering on just the screen is dim. Try powering on, hit return (this takes you to BASIC) and then type BEEP and return. There should be a beep if the unit is powering up but the screen is not working. If the screen is dim the –5V (Vee) might be really low. The memory protect switch is set correctly? I routinely forget to set this switch correctly when I take a machine out of storage :( From: M100 on behalf of Chris Fezzler Reply-To: Date: Tuesday, April 23, 2019 at 12:31 AM To: Model 100 Discussion Subject: [M100] Non-charger I took a Model T out of storage and it was completely dead and would not take a charge. I figured I'd use the opportunity to replace internal battery anyway.Installed the new battery and it started right up, albeit with a Low Battery light. So I assumed it just needed an overnight charge and would be as good as new. Just got home from work and it is dead as a doorknob again after being plugged into wall wort. I can solder and have a digital multimeter. Some clues on what to check? I assume it is not charging.
Re: [M100] Non-charger
Just a thought here - many (most?) rechargeable AA size (and AAA size) batteries are lower voltage than standard alkaline batteries. An alkaline 1.5 volt AA can be replaced with a rechargeable AA, but the rechargeable is usually labeled 1.2 volts. They're the same physical size, but supply different voltages. Thus, alkaline 4x1.5 volts = 6 volts. But rechargeable 4x1.2 volts = 4.8 volts. Tom M. On Tue, Apr 23, 2019 at 7:58 AM Jeffrey Birt wrote: > What sort of T do you have that has rechargeable batteries? > > > > Jeff Birt (Hey_Birt!) > > > > *From:* M100 *On Behalf Of *Fugu ME100 > *Sent:* Tuesday, April 23, 2019 1:49 AM > *To:* m...@bitchin100.com > *Subject:* Re: [M100] Non-charger > > > > Sometimes a cold boot can help after a NiCd battery replacement. > > > > Then check the Vdd and Vee voltages are +5V and –5V respectively. The > voltage on the battery should be about 3.7V if it is charging OK. > > > > It could be powering on just the screen is dim. Try powering on, hit > return (this takes you to BASIC) and then type BEEP and return. There > should be a beep if the unit is powering up but the screen is not working. > If the screen is dim the –5V (Vee) might be really low. > > > > The memory protect switch is set correctly? I routinely forget to set > this switch correctly when I take a machine out of storage :( > > > > *From: *M100 on behalf of Chris > Fezzler > *Reply-To: * > *Date: *Tuesday, April 23, 2019 at 12:31 AM > *To: *Model 100 Discussion > *Subject: *[M100] Non-charger > > > > I took a Model T out of storage and it was completely dead and would not > take a charge. > I figured I'd use the opportunity to replace internal battery anyway. > > Installed the new battery and it started right up, albeit with a Low > Battery light. So I assumed it just needed an overnight charge and would > be as good as new. > > > > Just got home from work and it is dead as a doorknob again after being > plugged into wall wort. > > > > I can solder and have a digital multimeter. Some clues on what to check? > I assume it is not charging. > > > >
Re: [M100] Non-charger
What sort of T do you have that has rechargeable batteries? Jeff Birt (Hey_Birt!) From: M100 On Behalf Of Fugu ME100 Sent: Tuesday, April 23, 2019 1:49 AM To: m...@bitchin100.com Subject: Re: [M100] Non-charger Sometimes a cold boot can help after a NiCd battery replacement. Then check the Vdd and Vee voltages are +5V and -5V respectively. The voltage on the battery should be about 3.7V if it is charging OK. It could be powering on just the screen is dim. Try powering on, hit return (this takes you to BASIC) and then type BEEP and return. There should be a beep if the unit is powering up but the screen is not working. If the screen is dim the -5V (Vee) might be really low. The memory protect switch is set correctly? I routinely forget to set this switch correctly when I take a machine out of storage :( From: M100 mailto:m100-boun...@lists.bitchin100.com> > on behalf of Chris Fezzler mailto:fezz...@yahoo.com> > Reply-To: mailto:m...@bitchin100.com> > Date: Tuesday, April 23, 2019 at 12:31 AM To: Model 100 Discussion mailto:m100@lists.bitchin100.com> > Subject: [M100] Non-charger I took a Model T out of storage and it was completely dead and would not take a charge. I figured I'd use the opportunity to replace internal battery anyway. Installed the new battery and it started right up, albeit with a Low Battery light. So I assumed it just needed an overnight charge and would be as good as new. Just got home from work and it is dead as a doorknob again after being plugged into wall wort. I can solder and have a digital multimeter. Some clues on what to check? I assume it is not charging.
Re: [M100] Non-charger
Sometimes a cold boot can help after a NiCd battery replacement. Then check the Vdd and Vee voltages are +5V and –5V respectively. The voltage on the battery should be about 3.7V if it is charging OK. It could be powering on just the screen is dim. Try powering on, hit return (this takes you to BASIC) and then type BEEP and return. There should be a beep if the unit is powering up but the screen is not working. If the screen is dim the –5V (Vee) might be really low. The memory protect switch is set correctly? I routinely forget to set this switch correctly when I take a machine out of storage :( From: M100 mailto:m100-boun...@lists.bitchin100.com>> on behalf of Chris Fezzler mailto:fezz...@yahoo.com>> Reply-To: mailto:m...@bitchin100.com>> Date: Tuesday, April 23, 2019 at 12:31 AM To: Model 100 Discussion mailto:m100@lists.bitchin100.com>> Subject: [M100] Non-charger I took a Model T out of storage and it was completely dead and would not take a charge. I figured I'd use the opportunity to replace internal battery anyway. Installed the new battery and it started right up, albeit with a Low Battery light. So I assumed it just needed an overnight charge and would be as good as new. Just got home from work and it is dead as a doorknob again after being plugged into wall wort. I can solder and have a digital multimeter. Some clues on what to check? I assume it is not charging.
[M100] Non-charger
I took a Model T out of storage and it was completely dead and would not take a charge. I figured I'd use the opportunity to replace internal battery anyway. Installed the new battery and it started right up, albeit with a Low Battery light. So I assumed it just needed an overnight charge and would be as good as new. Just got home from work and it is dead as a doorknob again after being plugged into wall wort. I can solder and have a digital multimeter. Some clues on what to check? I assume it is not charging.
