If thelaptop 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 andwill lose their charge capacity over time, i.e. won't charge to 100% andgradually the charge reduces until the battery won't charge up at all. OR Thebattery shows a 100% charge but when the adapter is disconnected the batterydrops off to zero capacity in a very short time. If the battery drops to anunacceptable charge level then the battery needs to be replaced.
SOURCE: DELL INSPIRON 6400 BATTERY CHARGE PROBLEM
The battery has 5 small dots in it. Those are there for no reason. Those are actually LED lights. There's a button you can press. If we number the lights 1-2-3-4-5 with 1 being closest to the button, check the lights when you press the button. If 1-3-5 are lit, that means that you have a dead battery and needs to be replaced. Other than that, you're battery might still be working but nearing the end of its life. Goto support.dell.com -> drivers and downloads -> enter your service tag or system type -> download Dell Quickset. Once Quickset is installed, it will diagnose your battery automatically and let you know if your battery already needs a replacement. It is just sad that batteries are covered with a separate 1-year warranty only. You can also go to www.dellbatteryprogram.com and check if your battery was part of the Dell Battery Recall Program.
SOURCE: dell inspiron 1501 work fine turn off last night now wont turn on
You mentioned trying a different battery, try a different AC adapter.
When plugging in the ac adapter to the wall, see if the POWER LED comes on on the adapter, then when you connect it to the computer, see if the LED stays on.
If the issue occurs with both AC adapters (No battery installed) then the motherboard has failed. If one ac adapter works but the other doesn't then the adapter is bad
SOURCE: i have a dell inspiron 1525 and it wont charge
Hi,
If possible could you check output voltage of the charger with a multimeter? If you can get output voltage, then might be something wrong with laptop battery charging circuit. Contact Laptop Repairing Engineer.
Regards;
Hassan
SOURCE: Dell Inspiron 1545 AC Adapter error message
-check the system battery information and charger information of the computer; restart the computer, while the computer is booting up, press F2 repeatedly; check "battery info"
-if it stated ac adapter = unknown device ; update the BIOS (-visit support.dell.com
NOTE:other computers may have different BIOS, if it is not the same you may have to consult manufacturer
-click on drivers and downloads
-click or choose by service tag
-download the BIOS and install it on the computer)
-check information after updating; if same message AC adapter = unknown device; call manufaturer for a replacement AC adapter, if status has changed it is a battery problem or motherboard, contact manufacturer to test battery
SOURCE: dell inspiron 1545 wont turn
Start taking your laptop apart piece by piece and test it after each removed component:
1. Remove the hard drive and test the laptop.
2. Remove the DVD drive and test the laptop.
3. Remove the wireless card and test the laptop.
4. Unplug the display panel from the motherboard/video card and test the laptop.
etc....
Continue taking it apart until you have only three major components connected: motherboard (with video card), processor, and memory. If you still experience the same problem, most likely it's bad motherboard.
By the way, before you start, try reconnecting the memory module. If you have two modules installed, try removing them one by one and test the laptop with each one separately.
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