Adding the "risk" when using alkaline battery which I think worth considering, especially in an expensive T&M instruments.
This photo was taken at Oct 2013, watch the expiry date at the cell. They were the standard batteries came with Fluke 287, and was installed in the meter (Fluke distributor's showroom) when I bought it for cheaper price as its a show unit. The meter was showing full bar at the battery indicator when they're installed, and also I did a brief "loaded" test and they were still fresh.
Just a reminder as well, remember to check your T&M instruments periodically if you are still using alkaline cells. Currently I'm a fanatic Eneloop user, and there are no alkaline cells allowed in my house, period.
The damages at the meter's battery contacts
I'm aware of Energizer warranty claim, its just not worth it for such expensive instruments, besides in my place, the damage claim could ended up for months in their bureaucracy , and there is no guarantee that they will replace or fix the device damaged by their battery.