OT. Electrical Advice please

[The Oldman]

I have an AC adapter as power supply to my router. Its output is shown as 12v--0.75A. The unit has failed. I have another adapter whose output is 12V---2.0A.

Can I use this one or will the higher Amp cause damage to the router?
Thanks for any advice.

 

[Uncle C]

I will have a stab at this but could be wrong.

Its the device itself that draws current not the adaptor that forces it on the device. The router will take just as much as it needs. The 0.75 adapter was capable of supplying these needs so the 2.0 adapter is well within its comfort zone.

Check it is the right polarity.

 

[The Oldman]

I will have a stab at this but could be wrong.

Its the device itself that draws current not the adaptor that forces it on the device. The router will take just as much as it needs. The 0.75 adapter was capable of supplying these needs so the 2.0 adapter is well within its comfort zone.

Check it is the right polarity.

Thanks Uncle C. That's reassuring. By polarity I presume you mean check that positive and negative go into and out of the router the same way on both adapters?

 

[Tony Towner's Fridge]

I will have a stab at this but could be wrong.

Its the device itself that draws current not the adaptor that forces it on the device. The router will take just as much as it needs. The 0.75 adapter was capable of supplying these needs so the 2.0 adapter is well within its comfort zone.

Check it is the right polarity.

You are indeed correct. 2A is it's maximum rated current that it can deliver which is equal to 24 watts of power (2A x 12 V). The old unit you had was 0.75Amps which equates to 9 watts of power(0.75A x 12 V). Hence the 2A power supply will be more than able to deliver the goods. As mentioned though you need to check the polarity, that could be an issue.

All the best

Thomas Edison

 

[The Oldman]

You are indeed correct. 2A is it's maximum rated current that it can deliver which is equal to 24 watts of power (2A x 12 V). The old unit you had was 0.75Amps which equates to 9 watts of power(0.75A x 12 V). Hence the 2A power supply will be more than able to deliver the goods. As mentioned though you need to check the polarity, that could be an issue.

All the best

Thomas Edison

Thanks again. The polarity symbols on the adapter and router match. Have switched on and all is powered up.

 

[Uncle C]

Thanks again. The polarity symbols on the adapter and router match. Have switched on and all is powered up.

Good stuff.