| Author |
Message |
CliffG
Guest
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 Posted:
Wed Nov 02, 2005 3:22 am Post subject:
laptop power |
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The ac adapter connection on my Dell latitute c600 no longer charges the
battery but there is still 19vdc at the laptop end. Laptop fell on floor
but still works on a good battery.
Does anyone have a pinout of this battery as I would like to hook up my own
power to this connector. |
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Barry Watzman
Guest
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| Posted:
Wed Nov 02, 2005 7:14 am Post subject:
Re: laptop power |
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It's not that simple, the battery does not simply connect to the same
point as the DC power input. In fact, it's FAR more complex than that.
You can possibly power the laptop by connecting a DC supply to the
battery terminals, but:
1. The battery has a microprocssor inside it that talks to the laptop.
Many laptops won't work from the battery if that Microprocessor
doesn't "tell" the laptop that the battery is ok.
2. The voltage that you need will not be the same as the power
supply/charger voltage.
CliffG wrote:
| Quote: | The ac adapter connection on my Dell latitute c600 no longer charges the
battery but there is still 19vdc at the laptop end. Laptop fell on floor
but still works on a good battery.
Does anyone have a pinout of this battery as I would like to hook up my own
power to this connector.
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The Electric Fan Club
Guest
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| Posted:
Wed Nov 02, 2005 2:55 pm Post subject:
Re: laptop power |
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"CliffG" <cliffgau@sympatico.ca> wrote in message
news:h0R9f.4084$J14.235566@news20.bellglobal.com...
| Quote: | The ac adapter connection on my Dell latitute c600 no longer charges the
battery but there is still 19vdc at the laptop end. Laptop fell on floor
but still works on a good battery.
Does anyone have a pinout of this battery as I would like to hook up my
own power to this connector.
|
If the battery is a Lithium-ion, then DON'T even think about it.
Any failure to charge a Li-ion battery correctly can result in it erupting
in a huge (~4 ft) fireball. |
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Barry Watzman
Guest
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| Posted:
Thu Nov 03, 2005 12:58 am Post subject:
Re: laptop power |
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My understanding was that he was only going to power the laptop, from an
external source other than the battery, but through the battery
connectors, WITH THE BATTERY REMOVED.
The Electric Fan Club wrote:
| Quote: | "CliffG" <cliffgau@sympatico.ca> wrote in message
news:h0R9f.4084$J14.235566@news20.bellglobal.com...
The ac adapter connection on my Dell latitute c600 no longer charges the
battery but there is still 19vdc at the laptop end. Laptop fell on floor
but still works on a good battery.
Does anyone have a pinout of this battery as I would like to hook up my
own power to this connector.
If the battery is a Lithium-ion, then DON'T even think about it.
Any failure to charge a Li-ion battery correctly can result in it erupting
in a huge (~4 ft) fireball.
|
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| Back to top |
|
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CliffG
Guest
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| Posted:
Thu Nov 03, 2005 3:20 am Post subject:
Re: laptop power |
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yes I want to know what the battery connections are.
Does it provide a source of 5vdc as well as 14vdc?
I've already established that pin 1 on connector is +14v and pin 7 is
ground. I know there's electronics inside the battery to regulate the
voltage and prevent overchargung so I soldered a direct connection to pin 1
& 7 and connected my ac adapter to it. Laptop booted up and worked fine
every day for about 3 weeks. Then the amber light and a message came on
telling me I should connect the adapter or charge the battery. I assume my
direct connection screwed up the electronics inside the battery as the
adapter was still working ok. Battery never even got warm during time it was
working.
Right now all led's come on for the charge indicator but zero out from the
battery. I just want to get the thing working WITHOUT a battery and was
thinking of maybe a dual? voltage regulated power supply.
"Barry Watzman" <WatzmanNOSPAM@neo.rr.com> wrote in message
news:43690C6C.4080500@neo.rr.com...
| Quote: | My understanding was that he was only going to power the laptop, from an
external source other than the battery, but through the battery
connectors, WITH THE BATTERY REMOVED.
The Electric Fan Club wrote:
"CliffG" <cliffgau@sympatico.ca> wrote in message
news:h0R9f.4084$J14.235566@news20.bellglobal.com...
The ac adapter connection on my Dell latitute c600 no longer charges the
battery but there is still 19vdc at the laptop end. Laptop fell on floor
but still works on a good battery.
Does anyone have a pinout of this battery as I would like to hook up my
own power to this connector.
If the battery is a Lithium-ion, then DON'T even think about it.
Any failure to charge a Li-ion battery correctly can result in it
erupting in a huge (~4 ft) fireball. |
|
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| Back to top |
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CliffG
Guest
|
| Posted:
Thu Nov 03, 2005 4:55 am Post subject:
Re: laptop power |
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That's right, I want to power it WITHOUT the battery through the battery
connector. I am aware that the battery itself has built-in electronics for
regulation and to prevent over-charging. So I might have to use a dual?
voltage regulated power supply.
"Barry Watzman" <WatzmanNOSPAM@neo.rr.com> wrote in message
news:43690C6C.4080500@neo.rr.com...
| Quote: | My understanding was that he was only going to power the laptop, from an
external source other than the battery, but through the battery
connectors, WITH THE BATTERY REMOVED.
The Electric Fan Club wrote:
"CliffG" <cliffgau@sympatico.ca> wrote in message
news:h0R9f.4084$J14.235566@news20.bellglobal.com...
The ac adapter connection on my Dell latitute c600 no longer charges the
battery but there is still 19vdc at the laptop end. Laptop fell on floor
but still works on a good battery.
Does anyone have a pinout of this battery as I would like to hook up my
own power to this connector.
If the battery is a Lithium-ion, then DON'T even think about it.
Any failure to charge a Li-ion battery correctly can result in it
erupting in a huge (~4 ft) fireball. |
|
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| Back to top |
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Barry Watzman
Guest
|
| Posted:
Thu Nov 03, 2005 6:09 am Post subject:
Re: laptop power |
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No, the main battery connection is just one single voltage, positive and
negative terminals. The other connections have to do with charging, and
charging control (including monitoring of battery temperature and
communication with the microprocessor inside the battery).
CliffG wrote:
| Quote: | yes I want to know what the battery connections are.
Does it provide a source of 5vdc as well as 14vdc?
I've already established that pin 1 on connector is +14v and pin 7 is
ground. I know there's electronics inside the battery to regulate the
voltage and prevent overchargung so I soldered a direct connection to pin 1
& 7 and connected my ac adapter to it. Laptop booted up and worked fine
every day for about 3 weeks. Then the amber light and a message came on
telling me I should connect the adapter or charge the battery. I assume my
direct connection screwed up the electronics inside the battery as the
adapter was still working ok. Battery never even got warm during time it was
working.
Right now all led's come on for the charge indicator but zero out from the
battery. I just want to get the thing working WITHOUT a battery and was
thinking of maybe a dual? voltage regulated power supply.
"Barry Watzman" <WatzmanNOSPAM@neo.rr.com> wrote in message
news:43690C6C.4080500@neo.rr.com...
My understanding was that he was only going to power the laptop, from an
external source other than the battery, but through the battery
connectors, WITH THE BATTERY REMOVED.
The Electric Fan Club wrote:
"CliffG" <cliffgau@sympatico.ca> wrote in message
news:h0R9f.4084$J14.235566@news20.bellglobal.com...
The ac adapter connection on my Dell latitute c600 no longer charges the
battery but there is still 19vdc at the laptop end. Laptop fell on floor
but still works on a good battery.
Does anyone have a pinout of this battery as I would like to hook up my
own power to this connector.
If the battery is a Lithium-ion, then DON'T even think about it.
Any failure to charge a Li-ion battery correctly can result in it
erupting in a huge (~4 ft) fireball.
|
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Barry Watzman
Guest
|
| Posted:
Thu Nov 03, 2005 6:10 am Post subject:
Re: laptop power |
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|
No, the problem is (or, well, could be) that even if you provide power
to the laptop through the battery terminals (as if it was coming from
the battery), the laptop may not turn on or work unless you also provide
the "communication" between the laptop and the microprocessor INSIDE the
battery whereby the battery's uP tells the laptop it's condition. And
that is something that you will find it very difficult to simulate.
CliffG wrote:
| Quote: | That's right, I want to power it WITHOUT the battery through the battery
connector. I am aware that the battery itself has built-in electronics for
regulation and to prevent over-charging. So I might have to use a dual?
voltage regulated power supply.
"Barry Watzman" <WatzmanNOSPAM@neo.rr.com> wrote in message
news:43690C6C.4080500@neo.rr.com...
My understanding was that he was only going to power the laptop, from an
external source other than the battery, but through the battery
connectors, WITH THE BATTERY REMOVED.
The Electric Fan Club wrote:
"CliffG" <cliffgau@sympatico.ca> wrote in message
news:h0R9f.4084$J14.235566@news20.bellglobal.com...
The ac adapter connection on my Dell latitute c600 no longer charges the
battery but there is still 19vdc at the laptop end. Laptop fell on floor
but still works on a good battery.
Does anyone have a pinout of this battery as I would like to hook up my
own power to this connector.
If the battery is a Lithium-ion, then DON'T even think about it.
Any failure to charge a Li-ion battery correctly can result in it
erupting in a huge (~4 ft) fireball.
|
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CliffG
Guest
|
| Posted:
Thu Nov 03, 2005 7:10 am Post subject:
Re: laptop power |
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Ya that makes good sense. So maybe I'll just look around for a good used
system board. Thanks for the input.
"Barry Watzman" <WatzmanNOSPAM@neo.rr.com> wrote in message
news:43695594.4070607@neo.rr.com...
| Quote: | No, the problem is (or, well, could be) that even if you provide power to
the laptop through the battery terminals (as if it was coming from the
battery), the laptop may not turn on or work unless you also provide the
"communication" between the laptop and the microprocessor INSIDE the
battery whereby the battery's uP tells the laptop it's condition. And
that is something that you will find it very difficult to simulate.
CliffG wrote:
That's right, I want to power it WITHOUT the battery through the battery
connector. I am aware that the battery itself has built-in electronics
for regulation and to prevent over-charging. So I might have to use a
dual? voltage regulated power supply.
"Barry Watzman" <WatzmanNOSPAM@neo.rr.com> wrote in message
news:43690C6C.4080500@neo.rr.com...
My understanding was that he was only going to power the laptop, from an
external source other than the battery, but through the battery
connectors, WITH THE BATTERY REMOVED.
The Electric Fan Club wrote:
"CliffG" <cliffgau@sympatico.ca> wrote in message
news:h0R9f.4084$J14.235566@news20.bellglobal.com...
The ac adapter connection on my Dell latitute c600 no longer charges
the battery but there is still 19vdc at the laptop end. Laptop fell on
floor but still works on a good battery.
Does anyone have a pinout of this battery as I would like to hook up
my own power to this connector.
If the battery is a Lithium-ion, then DON'T even think about it.
Any failure to charge a Li-ion battery correctly can result in it
erupting in a huge (~4 ft) fireball.
|
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| Back to top |
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ikenfixit
Guest
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| Posted:
Fri Nov 04, 2005 6:30 pm Post subject:
Re: laptop power |
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|
Docking station or Port replicator may work also.. and DO NOT TRY TO
HARDWIRE TO BATTERY TERMINALS! Fire risk as well as explosion are the
key-words here.. (Thank you for the other poster)! Never screw w/LI
Batts and the circuitry.. Good luck! |
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Barry Watzman
Guest
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| Posted:
Fri Nov 04, 2005 8:45 pm Post subject:
Re: laptop power |
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Geez, don't you people read? He wants to power the laptop through the
battery terminals WITH THE BATTERY REMOVED. NO BATTERY PRESENT AT ALL.
While there are a number of issues with this, the fire/explosion hazards
associated with lithium batteries are not among them since there will
be, in fact, no battery involved.
ikenfixit wrote:
| Quote: | Docking station or Port replicator may work also.. and DO NOT TRY TO
HARDWIRE TO BATTERY TERMINALS! Fire risk as well as explosion are the
key-words here.. (Thank you for the other poster)! Never screw w/LI
Batts and the circuitry.. Good luck!
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ikenfixit
Guest
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| Posted:
Sat Nov 05, 2005 3:31 am Post subject:
Re: laptop power |
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Until some other poor sap gets the unit off ebay and pops a batter
in... Wasnt NOT reading.. just being informative... Apologies i
anyone is offended by ME stating never alter circuits?
Think deeper, work smarter, not harde |
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