Duracell has its drummer bunny. Panasonic has Evoia.

To demonstrate their long lasting evolta batteries, panasonic drove the small Evoia robot for 24 hours at the race track powered by two small AA evolta batteries, covering a record setting distance of 23.726 km. It set the guinness world record on August 6. This is the second record for the evolta battery, which previously was given the honour of ‘longest lasting AA alkaline battery’.

Extract from designboom