AC Adapter/ Elitebook 8730W -Can I use 200W safely?

[erikswavelength]

I have an EliteBook 8730w laptop. It comes with an external 120 watt or 150 watt Smart AC adapter. 

A friend gave me a replacement 200W AC Adapter which was originally for the 8740w. It fits my 8730w but is it safe to use as its a higher wattage than the original?

[Paul_Tikkanen]

Hi:

You probably should call HP support and ask them.

I can give you my opinion, which is, it probably would be OK. It is also a smart A/C adapter and should quit charging your battery when it senses it is fully charged.

The wattage shouldn't matter. Your notebook will put less of a strain on the 200 W adapter than it did on the 150W one.

You may even want to touch the adapter to see how warm it gets. It would think it would get less warm than a 150W adapter since there is less demand on the 200W one.

Paul

[erikswavelength · Accepted solution]

I spoke with HP Support and they advised its fine to use the 200W adapter. Since they are smart adapters they are made to reduce the wattage to whatever the laptop needs. I.E. if the laptop is maxes out at 150W or 90W  then the adapter will only provide that much.

[laptop97]

I know nothing's wrong with my laptop battery because i tried three different batteries. My laptop does not charge anymore and I tried different adapter as well. Three adapters are 90w and one is 120watt. When I plug an adapter it says to I have to upgrade to an adapter with a higher power.