Duracell Bunny vs. Energizer Bunny: The Identity Theft Case

Here is a real story. Duracell launched a drum-playing bunny mascot in Europe in 1973. Energizer launched a drum-playing bunny mascot in America in 1989. Duracell held the trademark in most of Europe. Energizer held it in most of North America. For decades, both brands used basically the same bunny to sell batteries in adjacent markets, and the audiences in each market assumed their bunny was the only bunny.

It's the longest-running accidental branding dispute in advertising history. The two bunnies have never been in the same ad. They have never met. They've just been staring at each other across the Atlantic for forty-five years.

It's time someone filmed it.

Both bunnies are technically correct

Duracell has the original bunny. Their legal claim is "we had it first, which is true." Energizer has the famous bunny. Their legal claim is "we made it iconic, which is also true."

There is no clean winner in a court, which is why the brands settled decades ago: Duracell gets Europe, Energizer gets North America, everyone keeps their bunny, nobody complains.

But in advertising terms, this is the perfect crossover premise. Two characters who both have legitimate claims to the same identity, who have never been allowed to meet, who would probably hate each other on sight.

The therapy session

Both bunnies, seated on either side of a mediator. Both are holding drumsticks. Neither has spoken, because neither bunny talks in their respective ads.

Mediator: "Let's start with what you have in common."

Both bunnies drum, aggressively, at the same time. The drumming goes on for several uncomfortable seconds.

Mediator: "Right. Let's acknowledge that."

Duracell Bunny, via subtitles: "I was here first."

Energizer Bunny, also via subtitles: "I am more famous."

Both drum again. Louder this time.

Mediator: "We should maybe... establish a drumming schedule."

Both bunnies stop. Stare at the mediator. Very slowly, both raise their drumsticks and start drumming in perfect unison.

Mediator, closing her notebook: "Okay. So this isn't about the drumming."

The brand lesson

There's a real strategic insight buried in this absurdity. Two brands, same category, same visual identity — and both of them have thrived, in their respective geographies, for decades. The lesson: mascot theft is not fatal to either party if the markets don't overlap.

But the moment a market overlaps — say, you open an international e-commerce channel, or AI video starts showing your ads to audiences outside your region — you have to pick a position. Do you own "original" or do you own "famous"? Because you can't own both.

Duracell leans into engineering heritage — "we make the better battery, always have." Energizer leans into longevity — "we're the bunny that keeps going." Two different positions. Same bunny. Both work, because each brand committed to a different part of the shared visual.

If you're ever in a situation where a competitor looks too much like you, don't try to outrun them on visuals. Outrun them on meaning. Own a different word.