While the system will run without a battery, it may not be capable of running at full speed -- many newer Dell and Alienware systems use hybrid power, and I think you'll find this is one of them.  They tap the battery under conditions of heavy load. 

If you want the system to run at maximum performance, you will need to replace the battery.  It will run at reduced levels if you are on AC only.

If the battery is swelling, you must remove it. Otherwise it may damage the laptop.

Hola, gracias por contestar.

El uso que yo le doy es ofimática por lo que el ordenador apenas se calienta. Mi pregunta iba más ubicada por si la placa o algún otro componente se vería afectado al conectarlo sin la batería ya q no quiero estropear el ordenador por temas de que le llegue más voltaje y esas cosas.

Posdata: la batería ya la quité y estaba inchada.

Gracias

No -- nothing else will be affected by the absence of the battery (other than that a power interruption will shut down the system, as it would on a desktop computer).

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@antoniotrs wrote:

Hello, thanks for replying.‎

‎The use that I give it is office automation so the computer hardly heats up. My question was more located in case the board or some other component would be affected by connecting it without the battery and Q I do not want to spoil the computer for issues of more voltage and stuff.‎

‎Postscript: I already removed the battery and it was inchada (swollen).‎

‎Thank you‎

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Hi @antoniotrs thank you for sharing update. 

There are external battery options for Dell Notebooks. 

Dell Notebook Power Bank Plus (Barrel) - 65Wh - PW7015L | Dell USA 

Dell Notebook Power Bank Plus – USB C, 65Wh - PW7018LC | Dell USA 

Within 17 R5, battery replacement issue - Dell Community, DELL-Chris M provided Validated 17 R5 Dell OEM battery part numbers =

01D82 LG, 99WHR, 6 Cell
MG2YH Simplo, 99WHR, 6 Cell
546FF LG, 68WHR, 4 cell
HF25D Simplo, 68WHR, 4 cell