Bluetooth vs Cordless Mouse Laptop Battery Drain Comparison

Does a bluetooth mouse drain the same amount of battery from the laptop (not the mouse) than a cordless? Is the difference even worth worrying about?

Are they, in terms of performance for gaming, the same?

Thans

 

Bluetooth will take more power than an RF mouse. It will also be less responsive and take more time to reconnect - and is more prone to lagging and skipping. Hope this helps!

 

i believe the difference on average is between 15 to 30 minutes if i remember correctly. depends on the laptop, and if you happens to always turn your bluetooth on or off all the time.

if you can, get the cordless RF mouse, they are better, i suggest you go with logitech's one, the one with pre-paired receiver.

VX revolution, VX nano, MX1100.

 

Speakinng about bluetooth, on my Vaio, from an 80% charge, I can get 4,5 hours quite easily using standby inbetween without bluetooth.

With bluetooth I'll get about 4 hours under the same conditions.

Bluetooth that doesn't search for devices will use les electricity too
And if you hide it as well, it won't respond to search queries.

 

Well you have to differentiate between 'BT on' and 'BT on and used'
If it's just on (no device actively connected), it won't consume noticeable more battery life, but if it's 'on and used' (a device is actively connected) then it consumes a lot more. Not the module, but the CPU which has to handle the whole BT protocol:
http://forum.tabletpcreview.com/showthread.php?t=20062#post127420
On my tablet the difference is 2 watt.
My average power consumption without BT using is about 10 watt, so with a 100Wh battery it's like 10h vs. 8.3h. A lot in my opinion. But I still like BT because you don't need an additional USB dongle.

 

sweet thanks.... much appreciated

will prob go logitech vx nano - the nano reciever is small enough to leave in all the time.

 

So if your CPU uses little power, like a netbook, does that mean there is no difference?

 

difficult to say, but I think your logic is flawed.

You have a notebook with a C2D. It consumes 10 watt and you have a battery life of 10h and thus a battery with 100Wh.
Now you have a netbook with an Atom. It consumes maybe only 5 Watt, has a battery life of 10h and thus a battery with 50Wh.

Now you use BT and the CPU must handle the BT stack and thus consumes more power.
The C2D increases from 10 Watt to 12 Watt (+2W), thus the battery life decreases to 8h.
The Atom increase from 5 Watt to 6 Watt (+1W), thus the battery life decreases to 8h.

All I want to show is, that a netbook does consume less power, that's right, but also has a smaller battery, and thus a smaller power increase causes a similar battery life drop.


I don't know if those numbers are correct, maybe some netbook user could test the power consumption difference. It would be interesting.
The calculation above is also just a speculation, so it's possible that I'm wrong, but I don't have a netbook, so I can't test it