Speaking of which, i had this EX100 mouse.

It's been a year & i never had any problem. Then 1 day, when the batteries died, i do the usual stuff & replace with new batteries. To my surprise, it died within 3 days O_O.

It was pretty weird since during the last 1 year, i only need to replace batteries at least after 3 months before it died out.

I replace it again & same result happen, died after 3 or 4 days. Try again with Energizer(i used Eveready Super Heavy Duty before) this time & poof, died after 6 days.

What the cause of this?