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Re: How to repair a torn Charger Power Cord for my Dell...
It depends where the damage is, on the low voltage side or the high voltage side and how close to a plug?
When a cable is damaged to the extent it is faulty or a safety issue it is best to cut the bad part out and then join together what remains.
Now heat-shrink tubing is so widely available almost every handyman owns a selection as well as a number of soldering irons, it is possible to make good and workman-like repairs to damaged cables and with a great deal of care and patience even make them very close to the plug or the power supply and then use epoxy or a good grade of RTV silicone or polyurethane to make the joint strong again.
By using a sharp blade I have even managed to cut away moulded strain grommets to effect repairs and sometimes used a hacksaw to get inside a power supply in order to replace a cable.
The above applies mostly to the low voltage side. If the mains power cord is damaged it should be replaced if possible. If it isn't possible to replace the mains power cord a variety of small in-line joiners are available.
Testimonial: "The tear is only about 15 inches from the laptop insertion site, not near the plug for the wall. I might try to repair it myself with your tips. I never heard of the heat shrink tubing, but it sounds interesting. How can I "connect" the inner wires properly? Any advice on those? Thank you kindly for answering my question so quickly!"
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A Dell Mini net book is a small and very portable laptop. The compact
size makes it a good candidate for travel or just simply using around
the house. Outdoor aficionados can get the most computing life out of a
Dell Mini by finding a way to charge the battery outside. One method
works when you are near a building while the other can be used for more
remote outdoor locales
Things You'll Need
Solar laptop charger
Dell Mini power adapter
Plug an extension cord into an
available power outlet. Run the extension cord to where you are outside.
Many homes also have exterior outlets. Use an extension cord that is
designed for outside use. Plug the Dell Mini power adapter into the
extension cord to charge the battery.
Purchase a laptop solar charger.
Solar chargers are available from several different manufacturers and
may come in the form of a roll or be built into a case that closes up
for travel. Depending on the charger, you may also need to purchase a
Dell Mini power adapter. Some chargers work with a Dell Mini cigarette
lighter adapter that is designed to plug into a vehicle's power port.
Place the solar laptop charger
in a sunny location. Open up the case if the charger is in one and roll
it out flat or unfold it to expose all of the solar cells.
Connect the Dell Mini power
adapter to the power port on the solar charger. Connect the other end to
the netbook. The adapter will regulate the charge coming from the solar
panel and recharge the battery in the Dell Mini.
Tips & Warnings
offer less power than a wall outlet. They can be used to extend the
battery life of a Dell Mini or to recharge the battery when the netbook
Some solar laptop
chargers are relatively heavy. Take the weight into consideration if you
are going to be backpacking or otherwise carrying it on your person.
If you are using a Genuine Dell charger, the battery should charge. I don't think its the battery however. My guess would be that there is damage to the inner pin of the charger jack, or possibly damage to the socket where it fits. It could also be down to worn contacts. The charger will power the laptop, as long as there is sufficient contact on the + (inner pin) and a tight enough fit on the outer (-) contact.
If you look closely at the inner pin on the charger, check and see if the inner pin has snapped.
The best check is to obtain or borrow a known good dell charger (aftermarket ones will simply not charge the battery) and see if that resolves the problem, or if you know anyone with the same model, ask them to see if their laptop will charge the battery. That at least will either confirm or deny the fault being with the charger or battery.
More serious is the possibility that the charging circuit has failed. On occasions, the small fuse on the motherboard can fail, or, there is a more deep seated problem on the charging circuit.
The laptop is either in sleep mode or the battery is low. If the laptop doesn't want to wake up, try unplugging the charger cord, then removing the battery (usually by sliding something on the bottom of the laptop to unhook it). Wait for 30 seconds then put the battery back in, plug in the charger and press the power button.
The power cord to the system uses a sensing pin (Small wire in center of the plug) to ID the AC adapter. If the pin is broken or bent, then the system cannot ID the Adapter. If the adapter is intact then the issue is the power connection on the motherboard.
In either case, if the system doesn't ID the adapter the battery charger is disabled.
If available, try a different Dell D-Series adapter. If no change, then replace the motherboard.
You can replace the plug, you can purchase a matching plug from an electronic hobby shop, When you cut off the old plug and solder the new plug onto the lead, MAKE SURE the wires are connect to the right terminals and not shorting against each other.
NOTE - the laptop socket is polarity sensitive, the + and - leads MUST be correctly wired or you will damage the laptop when you plug in the power supply.
If you feel you have not the skills, then I would suggest you get a computer repair shop to repair the power adapter for you.
It sounds more like the large portability battery has been 'messed' i recommend getting a new power cord. Whist you may have repaired the cabling and it may have appeared to work, the escape circuit for charge may have been broken but it is not required for the laptop to work, but is important when recharging the battery. I recommend getting a new adapter and then if that doesn't work a new large battery also.
There are no internal power supplies in laptops. What has most likely happened is as your laptop fell it either landed on the part of the power cord that was sticking out the back/side of the computer or the tension was so great on the plug from it falling that the power supply connector on the motherboard has broken loose from the motherboard. I have seen this happen a lot. This is not a job for an amatuer. It takes someone with knowledge of laptop repair and motherboard repair. In your best case scenarios either the little strip that contains the power button has popped loose and is not making contact (seen this happen in one case) or the power supply adapter (not part of the laptop) has been damaged and torn some wires. In the first case just try to push that power button strip down on the laptop first to see if it will snap back in place. If you can find someone else that has the same adapter you can ask to borrow theirs for a few minutes. Medium case scenario is that it has broken the solder loose and just needs to be resoldered or a new power plug soldered in. Worst case scenario is that it has cracked the motherboard, which will be expensive to fix (it would have to be replaced). Continuing to try and use it in this state (unless it is the best case scenario) will further damage the motherboard as the electricity will start jumping to places it should not go and eventually destroy the motherboard.