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Battery life on bluetooth keyboard & mouse

Message #1 - Posted 2005/03/13 - Roy Smith

I'm thinking of getting an iMac with the bluetooth keyboard and mouse (and WiFi, of course, I've declared war against wires). What I'm afraid of is battery life. I've got a Kensington wireless mouse which needs new batteries every few weeks. It's a real pain in the butt.

How long to people find the batteries last on the Apple wireless keyboard & mouse?

Message #2 - Posted 2005/03/13 - Keeper of the Purple Twilight

On 2005-03-13 10:12:14 -0600, Roy Smith said:

I'm thinking of getting an iMac with the bluetooth keyboard and mouse (and WiFi, of course, I've declared war against wires). What I'm afraid of is battery life. I've got a Kensington wireless mouse which needs new batteries every few weeks. It's a real pain in the butt.

How long to people find the batteries last on the Apple wireless keyboard & mouse?

Longer than the Kensington, definitely. It's a few months before I have to replace the batteries on my Apple wireless stuff.

"No urban night is like the night [in NYC]...here is our poetry, for we have pulled down the stars to our will."
- Ezra Pound, poet and critic, 9/18/1912, reflecting on New York City

Message #3 - Posted 2005/03/13 - Niels Jørgen Kruse

Roy Smith wrote:

I'm thinking of getting an iMac with the bluetooth keyboard and mouse (and WiFi, of course, I've declared war against wires). What I'm afraid of is battery life. I've got a Kensington wireless mouse which needs new batteries every few weeks. It's a real pain in the butt.

How long to people find the batteries last on the Apple wireless keyboard & mouse?

The original Lithium batteries lasted approximately 2 months. A less dark mousemat might have stretched that. The keyboard still had some life left at that time on its Alkaline batteries. I would say that the mouse is powerhungry enough to justify rechargeable batteries.

Mvh./Regards, Niels J¯rgen Kruse, Vanl¯se, Denmark

Message #4 - Posted 2005/03/13 - o-chan

Roy Smith wrote:

I'm thinking of getting an iMac with the bluetooth keyboard and mouse (and WiFi, of course, I've declared war against wires). What I'm afraid of is battery life. I've got a Kensington wireless mouse which needs new batteries every few weeks. It's a real pain in the butt.

How long to people find the batteries last on the Apple wireless keyboard & mouse?

The keyboard batteries last a long time. The mouse ones last less because the mouse is always tracking even when you're not moving it.

There are a fwe wireless mice out there now with charging bases. My Logitech mouse lasted 2 years before I needed to replace the internal batteries because they weren't holding a charge long enough.

Logitech and Macally have rechargable bluetooth mice. Maybe some others too.

Message #5 - Posted 2005/03/13 - AES

Previously, o-chan wrote:

The keyboard batteries last a long time. The mouse ones last less because the mouse is always tracking even when you're not moving it.

The red-light-emitting laser diode in the mouse (I'm guessing it's a laser diode, not just an LED) will consume a substantial amount of power when it's running, leading to the perhaps counterintuitive result that keyboard batteries last longer than mouse batteries. A couple of quick tests indicate that the mouse goes into a slow and low-brightness intermittent flashing mode when not being moved, most likely for battery conservation; and shuts off during hard sleep mode. Haven't tested what happens in screen display shutoff mode, but using aggressive energy saving settings might prolong mouse battery life.

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