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Step 1: Take the battery out, plug in the charger and see if the laptop works. If it works, the battery may be the problem. Check the AC Adapter Check to make sure the adapter is plugged securely into the wall outlet, connected firmly to the adapter box and to the back of your laptop. Most AC adapters have a little light in them on that rectangular box in the middle of the cord that lights up when it's getting electricity. If that light isn't on, try a different outlet. Check your fuse or circuit breaker box and plug a different device into that outlet to make sure there is power to it. If it still does not light up, your adapter could need replacing. Also check the adapter box for signs of warmth, as it will generate heat when it's plugged in. No heat means no power.
Remove the Battery Sometimes it's as simple as a seated battery. Remove the battery entirely and clean out any dust, lint or hair that may be clogging the connectors and preventing a proper connection. Reseat the battery securely and make sure the little locking pins that hold your battery in place are securely fastened and there is no movement. Unplug your laptop while it is running. If it still works, the battery has been charging. If it shuts off, or doesn't hold a charge very long, you have a bad battery. Unplug your laptop while it is off, then try to turn it on. If the battery is bad, your laptop probably won't turn on at all. Turn off your laptop's screen-saver when testing its battery. The screen-saver will conserve the battery and not give a clear time frame for how long your battery can really last. Click the battery icon on your laptop when it is unplugged. It can tell you how much battery life you have available. This icon is usually located in the bottom right corner of your screen and will provide the percentage of battery power you have left. Keep track of the time it takes to go from 100% charged to 1% charged. If this takes less than an hour, your battery is probably beginning to fail. You can also try this every week or two to see if your battery holds a charge for shorter periods. Factor in the amount of time you have used your laptop. Most laptop batteries last 2 to 3 years or about 500 charges. Wait a few days before determining whether a new laptop battery is faulty. New batteries sometimes take a few charges to build up to their maximum run time.
Are the specs the exact same , DC volts, Milliamps, on the replacement? Some aftermarket batteries don't work with your laptop. Was the replacement purchased at a shop? Return it. The contacts on the batteries don't match the laptop connections and thats the reason for not ID'ing and Charging. That said, in the BIOS do you have a Battery Learning section?
POWER SUPPLY & BATTERY PROBLEM If the laptop battery is more than 3 - 4 years old then the battery could be worn out. Rechargeable batteries have a finite number of charge and discharge cycles and will lose their charge capacity over time, i.e. won't charge to 100% and gradually the charge reduces until the battery won't charge up at all. OR The battery shows a 100% charge but when the adapter is disconnected the battery drops off to zero capacity in a very short time. If the battery drops to an unacceptable charge level then the battery needs to be replaced. When you connect the power adapter into the laptop, does the power LED light up? If not then - The battery adapter or the adapter's power lead or the laptop's power socket could be faulty. Check power adapter's DC plug that connects into the laptop power socket with a multi-meter, the voltage should be slightly higher than the voltage that is printed on the label on the bottom of the adapter. If the voltage is zero or way below the voltage that is printed on the label then the power adapter is faulty and needs to be replaced. If the adapter is OK then connect it to the laptop and power it up, then look at the power/battery charging LED light and wriggle the power plug in the laptop's power socket. If the power/battery LED light flashes and in a certain position this LED light stays firm, then the power socket is either faulty or it has a dry solder joint where it is connected to the motherboard. This can be repaired but it requires the laptop to be completely dismantled to get at this power socket and repair. If you cannot DIY then I suggest you get a quote first.
Whenyou connect the power adapter into the laptop, does the power LED lightup? If not then -
The battery adapter or the adapter's power lead or the laptop's powersocket could be faulty.
Check power adapter's DCplug that connects into the laptop power socket with a multi-meter, the voltageshould be slightly higher than the voltage that is printed on the label on thebottom of the adapter. If the voltage is zero or way below the voltage that isprinted on the label then the power adapter is faulty and needs to be replaced.
If the adapter is OK thenconnect it to the laptop and power it up, then look at the power/batterycharging LED light and wriggle the power plug in the laptop's powersocket. If the power/battery LED light flashes and in a certain position thisLED light stays firm, then the power socket is either faulty or it has a drysolder joint where it is connected to the motherboard.
This can be repaired but itrequires the laptop to be completely dismantled to get at this power socket andrepair. If you cannot DIY then I suggest you get a quote first.
Disconnect the charger and remove the battery. Wait 10 seconds, then reconnect both battery and charger. also, let it charge for 5 minutes before you try the power button again.
Please make sure that you see the power/recharge light on your laptop. Let me know if you need further help.
It appears that you have faulty laptop power connector socket.
This is why it appears to work sometimes when you plug the connector into the laptop in some direction.
To confirm this, wriggle the connector while you look at the charge light on the laptop, if it blinks as you wriggle it then the power socket is either faulty or just needs resoldering so it will make proper electrical contact.
You can get a compute techo to do this or you can do it yourself but it requires dismantling the laptop completely to get at this power socket.
If AC adapter is working fine fosure, DC connector might be the problem. Try to plug it and push it a little UP and see if charging light will come up. If not, push it DOWN and keep an eye on charging light, then try Left, then right. If at any point light will come up, DC connector needs to be replaced or re soldered.
Batteries get old and wear out. Be use AC outlet is working. Check for power light on AC/DC charger box between laptop and AC.
It is common for Laptop charging/power connectors to get worn and/or loose(intermittent). Try to get charging light on PC by wiggling power connection to PC.
If not, if you have a VoltOhmMeter(VOM). check for 5V on barrel power connector on the charger side, that plugs into PC, Outside conductor is GND and Inner connector is (+5V). VOMs are cheap at RadioShack or AutoParts stores and are a handy tool to have around the house. Book shows you how to measure. PC is 120V AC on Wall side of PC Power Supply from Wall Outlet, and 5V DC on PC side of Charger.
I hate to tell you this but the most common problem with these laptops is the power connector on the motherboard. It will make contact just long enough to flash then finds there is not enough power getting to the system. Is the connection in the back loose? If so when you wiggle it does the charge light come on? I have made a considerable amount of money on replacing these for people. It is the only thing Toshiba did not get right. In my opinion they are the greatest systems around, just wish they would have made the connectors more secure. Good Luck.