When you need reliable power for your devices, Duracell is a great battery to choose. No matter how good the battery is, however, they don’t last forever.

When TikToker @beckyblacksheep picked up an old clock at an auction, however, she was impressed that it was still ticking.

She starts off the video by saying, “We need to have a little conversation Duracell. We got this clock from an auction.”

She went on, “We were packing it and noticed that it was still ticking. But one interesting thing. Do you see what we’re seeing?”

She then zooms in on the expiration date on the battery.

She even adjusts the camera and zooms in for a better look, saying, “Oh wait, let me flip it so you can see it better.”

The battery clearly says 2004 on it.

She explains her surprise, saying “Yes, in this nearly 30-year-old clock, the battery should have expired in 2004.”

Wow! That battery just won’t quit.

Check out the full video to see the battery and clock.

@beckyblacksheep

@Duracell HOW HOOOOOW?!? #whatmagicbatteryisthis? #vintagesales

♬ original sound – Becky_BlackSheep

Let’s take a look at the comments and see what they have to say.

Look! Even Duracell commented on the video.

Those school clocks never die.

I thought the same thing, how am I this old?

Batteries can really last for decades on these low-power devices.

If you liked that story, check out this one about a woman who went on a date with somebody who was 10 years older than her. Find out what happened!