Resolved Dull Laptop Screen

Dell Inspiron 1520. Laptop.
Screen very dull when running on battery power (94% charged) brighter when running on charge.
Is this the signs of potential battery failure ?. It's about 8 years old

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Could be. They only last on average 5-6yrs.

 

Did you try increasing the brightness?

On a Dell I believe it's usually either [fn]+[F5] or [fn]+[UpArrow]

 

Thank you Ij50, tried Spyware Dr's suggestion Fn & Up arrow, it worked, thank you both.. marked solved

 

You're welcome.

(Keep in mind that the brighter the screen, the more power required).

 

You're welcome.

 

Running on battery always lowers the brightness. The reason is simple - conserve battery