ac/dc power adapter?

[mapman]

I have a ac/dc power adapter.output 12 volt 1.0 amp.I have a gps I have been powering this unit in the house for years.Now they say I should have an output of 1.5 amp.When I turn the unit on and go to the menu I checked the volatge and it was between 12-13 volts.If the unit was pulling more than 1.0 amp wouldn't the voltage be low.Please advise any opton.
Thanks
Jack

 

[Sceadwian]

Not if it's a switching regulator. I find it odd though that a GPS unit would be using 12 watts of power, it's probably drawing significantly less, I can't explain the large current requirements you've listed.

 

[mapman]

ac/dc adapter

The adapter says output 12 volts and 1.0 amp is this 12 watts?

 

[Sceadwian]

Power in Watt's == Voltage * Current.

The numbers on the power supply are possible values, NOT what the device actually uses.

 

[mapman]

http://www.greatplainsmapping.com/
Here ia a picture of the ac/dc adapter top left corner

 

[mapman]

Bonner Springs and lawrence,Kansas Topo Maps,topo map,topographic topo,lowrance HDS DVDs,Lowrance StructureScan DVDs,Lowrance traning dvd,fishing maps, Bonner springs kansas,Iowa Nebraska missouri,Minnesota,North Dakota see image top left

 

[Sceadwian]

If it were drawing more than one amp it might. What is the concern? the unit has not changed... If they now recommend a 1.5amp capable supply there may be minor instability issues at high loads on the 1.0amp supply under non-deal usage, nothing you should worry about.


Why are you powering a GPS in a house?

You're situation and problems aren't clear.

 

[mapman]

I power my unit in the house to go through the menus in the manual to learn how to operate the unit.

 

[Sceadwian]

Try at your own risk, but I wouldn't think there would be much of a problem. If the unit undervolts it might act odd or shut off but no harm should occur.

 

[mapman]

Thanks I will let it stand as is.I am like you all it can do is shut the unit down.Thanks again for your help.