The BEST wireless mouse overall and the one that has it's batteries last the
longest is the Microsoft Wireless 6000 Laser Mouse. The Duracell batteries
last well over 6 months of all day, every day use.

--
DaveW

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"BestMouse" <best@mouse.com> wrote in message
news:asc9m2hu4lp1i4c3god1g2suoqtqasofa4@4ax.com...
> My system is a year-and-a-half-old Dell Dimension 8400 running WinXP,
> with a Dell wireless keyboard and mouse, and is left on 24 hours a
> day. Unfortunately the mouse, which requires two AA batteries, uses up
> batteries very fast, so I'd like to replace the mouse with a more
> efficient one (but keep my current Dell wireless keyboard).
>
> Which wireless mouse has the longest battery life?
>
> I know that rechargeable batteries are an option, but would prefer to
> keep using regular Duracell's, but with longer life.