I have a dell inspiron 1545. i have the charger plugged in but a red light is flashin on my laptop. this light then turns white and immediately red again.if i remove the charger the laptop just switches off. is the battery in need of change or the charger.

First, try another charger. Perhaps your charger isn't providing enough volts to the laptop

A) You don't want to take the laptop apart.

B) You don't have the money to have it repaired.

C) Keep going like you are with fiddling with it, and you'll smoke the AC adapter (Charger), and Power MOSFET's on the motherboard.

http://mayohardware.blogspot.com/2010/04/important-parts-on-dv6000-and-dv9000.html

What !O_O! sort of 'miracle cure' are you expecting?

If you wish to correctly repair the laptop, this is the place.

Rig it so it works temporarily, and maybe permanently damages it?

Suggest go to another website.

ftp://ftp.dell.com/Manuals/all-products/esuprt_laptop/esuprt_inspiron_laptop/inspiron-1545_service%20manual_en-us.pdf

Charger Board

http://www.ebay.com/itm/ORIGINAL-DELL-INSPIRON-1545-DC-POWER-JACK-CHARGER-BOARD-00829-/170995370099?pt=LH_DefaultDomain_0&hash=item27d01e4873

You're going to need one of these, and connect it's alligator clip to a good ground source,

http://www.radioshack.com/product/index.jsp?productId=2103245

Doesn't have to be from that store. It's just an example.
Average cost is $3 to $6.

http://www.insidemylaptop.com/replace-keyboard-dell-inspiron-1545-laptop/

Need guidance? I'm right here. Post back in a Comment.
I'll step by step you through it.

Regards,
joecoolvette

your battery is toast and you need a new one

Remove the battery and try again to open it without the battery attached

Probably battery, although that should be orange not red..
Remove battery and try it on AC alone, if that works, it was a damaged battery halting the process
If it does not, check the charger's tightness in the charging port, if sloppy or loose, this will need replacing.

Some Dell's are VERY picky about the charger, if not the exact model specified, they will not charge the battery

If none of the above, remove battery and test with another Dell charger of the same spec, if this also fails to work and you are sure the light is red, you have a problem with the motherboard. Commonly the charger power board fails on these.

Does the battery for dell inspiron 1545 plug in. It maybe because the battery pack is too hot ,you can turn off the laptop,let the pc notebook and the laptop battery both cooled down.Then try turn on it to see. If still happen to the matter,it must because the wrong turn off did harm to your Inspiron 1545 laptop adapter.

Unfortunately this appears to be a fault with the charger, which will need replacing.

its the charger if the charger is longer before trie changing the battery or if that doesnt work u have to replace the motherboard (around 155.00 GBP)

I think that if it's 100% it should say that it's fully charged.There could be something wrong there.

My computer blinks with a red icon on the printer saying that the it's recommended the battery be replaced when the battery goes bad. It shows 100% charge as well.

I just got a 9 cell battery off of Ebay for my Acer Aspire that lasts 3 or 4 hours and is a little big, but fits the contacts and locks on.

Unseat and reseat the memory in the laptop one stick at a time in each slot one at a time. Turn on the laptop after each reseat of memory.

If that doesn't work then take out the hard drive and then the dvd drive.

Turn the laptop on again and if you still can't get video on the screen then the motherboard is defective and would need to be replaced.