Guess Who Makes Costco Batteries? (Answer Might Surprise You)

Updated March 20, 2024 by Kyle James

If you’ve ever been tempted to “cheap-out” and buy the “generic” Kirkland Costco batteries…I got BIG news for you. DO IT! Like every time you shop if you can. It turns out Costco actually contracts with a VERY popular name-brand battery manufacturer to produce their batteries for them. Same goes for their hearing aid batteries. Here’s everything you need to know about buying batteries from your local Costco.

Guess Who Makes Costco Batteries? (Answer Might Surprise You)

What Batteries Does Costco Sell?

Costco currently sells the following batteries:

1. Alkaline Batteries

Costco Alkaline Battery

Not only do they sell the Kirkland brand but they also sell Duracell. They sell AA, AAA, C, D, and 9V sizes.

Much to my surprise, the Costco CEO recently divulged that Kirkland batteries are actually made by Duracell.

So why pay up to 35 cents more per battery with Duracell when you can opt for the Kirkland brand knowing that the quality is probably identical.

Is their a chance Duracell is producing a sub-par battery and putting the Kirkland label on it? Yes, of course.

But from personal experience, and from talking to others, I have found very little difference in quality and life expectancy.

Look at it this way, even if the Kirkland brand was only 80% as good as Duracell, you would still be ahead in terms of price.

See Also: All the Kirkland Items That Are Produced by Popular Name-Brands

2. Hearing Aid Batteries

Costco Hearing Aid Battery

Costco only sells their own Kirkland brand hearing aid battery. But they get rave reviews both in terms of price and how long they last.

Many reviewers actually said the Kirkland brand lasts 2-3 times longer than major brands like Rayovac and Power One.

Kirkland hearing aid batteries will cost you $0.23/each on average, while you’ll pay close to $0.50/each with the leading name brands.

I’ve also read that the Kirkland brand hearing aid batteries are made by Ray-O-Vac as of 2016.

Trying to track down if this is still accurate, let me know in the comments if you have any insider information on this.

See Also: Costco Hearing Aids: Who Makes Them and Are They a Good Deal?

3. Auto, Marine, RV, and Tractor Batteries

Costco no longer sells a Kirkland branded car battery as it’s been replaced in recent years by the Interstate brand.

Some people believe that the Kirkland car battery was such a good battery that Costco wasn’t making any money on them as they were lasting for 7+ years.

So, in comes the Interstate brand with a 3.5 year replacement warranty and according to Consumer Pete, an “optimized warranty period so that people’s car batteries will die outside the warranty period with no recourse.”

Buyer be warned.

I really wish Costco would bring back the Kirkland car battery as it was a GREAT thing for consumers.

See Also: Costco No Longer Takes Passport Photos (Do This Instead)

Conclusion: Always Shop Smart

When buying batteries, there’s little evidence to suggest that buying the Costco store-brand is not the smart way to go.

But be warned that quality and life expectancy can quickly change.

This is especially true if Costco tries to lower their costs by skimping on the quality of their Kirkland batteries.

Ask the Reader: What has been your experience buying Costco batteries? Let me know in the comments section below, thanks.

By Kyle James

Photos courtesy of Costco.


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Costco batteries are now junk. Bought new 8 months ago, now it’s 4.14.21, and it won’t hold a charge. It’s going back and I’ll buy elsewhere


‘Costco no longer sells a Kirkland branded car battery’… Kyle, I just bought a Kirkland battery group 24, this morning July 5, 2021.


In Texas they switched to interstate, my old Kirkland lasted 6 years.


They had 3 on the shelf of the same group which fit my car. Two had no production date codes, one did (which was 7 mos old). Reluctantly I bought the dated one. Before putting in service, checked with hydrometer, all cells….. Red Zone, all at 11.40 or less. Returned for full refund plus get my core back. VERY disappointed with COSTCO selling batteries with very long shelf times.

brian cummings

this article said nothing about the efficacy of their car batteries.

Last edited 2 years ago by brian cummings

There are two car battery plants in the USA. One on the West Coast and One on East Coast. That is where all batteries for cars are mfg.

Scott Thayer

I agree, the old Kirkland car batteries were great. I have had lots of problems with the new Interstate batteries.

Last time I took one in for warranty, I asked the Costco employee why they stopped offering the Kirkland battery and switched to Interstate. He told me that Interstate was making the old Kirkland battery and Costco was just selling it under the Kirkland name. Not sure if I believe him.

Stan Land

Your comments on the Interstate Batteries sold at Costco are not quite true. For one thing, the batteries you claimed lasted 7 years are no different than the batteries sold today. Just different labels. Many factors determine the lifetime of a battery. Costco sets their own warranty period, not Interstate. There are only two main manufacturing companies left in America. Most Interstates are union made in America at the #1 rated company in America.


Actually no. The new interstates as of 2022 weight roughly 4lbs or so LESS for the same size battery for my Tahoe than the 2017 dated interstate from Costco. So Costco interstate batteries HAVE been cheapened

Marvin Freed

I have been using Kirkland hearing aid batteries #13 for ten years and they lasted 7 to 10 days. The last ones I bought lasted 2 days so I returned them and got new ones. The new ones last 1 or 2 days also. What’s going on?

Tom Macfarlane

I’ve been having the same problem. Out of each pack of 8, 2 might die in either hours or a couple of days. The rest are good. Annoying, but still the cheapest by far. Awhile ago I asked at the hearing center if they had been getting complaints. I was told that yes, they had been and hoped that they would be resolved.


Another premature “dead” Costco/Interstate battery for me. Purchased a Costco group 24 for my Camry in October 2021 and it died yesterday, July 27th, 2022. Not even a years use. Only good news is the fact I kept my receipt and Costco refunded my money. Sad thing is the newly purchased Group 24 Costco battery is now $10 more expensive with no guarantee it will make the 3-year mark. Sad and even sadder for Interstate ….. Not good Costco


I have not used our boat in over 2 years……couple days ago,I pulled out the KIRKLAND DEEP CYCLE 845 Marine cranking amps 675 CCA. IT had been disconnected so no drain…….
it was down to 12.25 ,so I charged it at 10amps/6 hours…..let it rest for 8 then another 6 at 10 amps….its been 24 hours and STILL has a full 12.62 volts…….DID I MENTION I PURCHASED IT IN 2013 !!!! ALMOST 10 YEARS OLD!!!
GREAT BATTERY ………Vancouver island bc canada


Who makes the new silver Costco batteries (AAA & AA)?


I don’t recommend buying Kirkland batteries any more. I changed the batteries in most all my electronic devices abourt 2 years ago to Kirkland batteries (AAA expiration Dec 2025 & Mar 2028 and also AA exp. Mar 2017) and now am finding many have leaked, causing either a destruction of the device or me to work hard at cleaning out the deposits. I also note there is no warranty printed on the side of Kirkland batteries like there is on Everready or Duracell batteries. Consequently, I am out of a lot of money having to replace several ruined devices. Kirkland batteries used to be good and reliable, but apparently they changed.


I just pulled all of the Kirkland AA batteries out of everything because they started leaking at the negative cap end. So far I have lost a LaCrosse weather station, a Carbon Dioxide detector, a TV remote and a computer mouse from leaking Kirkland batteries. All of them say use before March 2028. Found 5 more leaking in the battery storage case. New, never used. They also lasted less than 3 months in the weather station that Duracells last a year in.


I bought the Costco Kirkland brand triple AAA and double AA batteries and they lasted 2 to 3 times longer than Duracell. And Duracell was supposed to be the best. It just goes to show you that they can control the length of the batteries durability. WHAT A SCAM!!!!! We are a bunch of suckers for believing that these companies actually care about the consumer. πŸ‘ŽπŸΏπŸ‘ŽπŸΌπŸ‘ŽπŸΎπŸ‘ŽπŸ‘ŽπŸ½ πŸ€·πŸ»β€β™‚οΈ