Solder AC Adapter directly to battery jack

Hi.

Today i tripped in the AC cord, and the computer went down...from that moment i cant get any signal from the laptop using a AC Adapter (the ac adapter is still getting 20V).. i assume i damaged the AC Jack in the laptop, but i looked to the jack and his solders and everything looks ok.

Using the battery the computer works normally.

Since i need this laptop mount a server (dont really need the battery), i was thinking on soldering the AC Adapter directly to the battery jack.

-The battery (14.8V) connector has 7 wires
2x Red
2x Black
1x White
1x Green
1x Yellow

-The AC adapter is a universal adapter (can choose between 12V to 24V). The laptop requires 20V through AC Adapter.


What do you think? Is it possible to connect the ac adapter directly to the battery port? If so, should i solder 2x RED to RED and 2X Black into Black? What voltage in the AC Adapter should i use?

Any opinion i appreciate

 

When I read your thread tittle, I thought of this(completely OT):

Replace the optical drive with a power adapter? No need for bulky adapters, just one small cord. I would get rid of my DVD drive for that. Wonder if it's possible?

 

You mean the DC jack, haha.

Why would it be less work to solder it to the battery connector than it would to repair that jack?

 

Not sure 100% but I don't think it is as easy as connecting red/black wires accordingly. Battery circuitry is somewhat complex providing real-time info on the battery status (remaining power, total capacity, charge/consumption rate, wear etc.).


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I don't think it will work. Just open up the laptop and replace the power jack.

 

Yep! only simple way

cheers ...

 

A direct connection to the battery connections could (will?) go wrong and grill your mobo. If you really want to do some soldering, solder the adapter cables to the print were the DC jack is. But as you would have to dismantle the laptop to get there, may just as well change the plug (if it's available as spare from some supplier).

 

Hey there, there is raft of power circuitry conditioning the supply before getting to the battery. A very VERY bad idea to bypass that.

 

Yeah find the part that broke on the jack and fix the jack or solder to the jack joints.

OHM read the jack and its solder joints to make sure its still connected. Even if it looked connected it is the most likely place for a failure due to a trip on your cable.

I should clarify to trace to the next point on the MB that the jack connects to not the actual solder joints on the jack itself, a trace or something may have been damaged or ripped up.