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Product Overview

  • Longest lasting alkaline battery life is up to two times longer than standard alkaline batteries
  • Carefully designed and tested to prevent leaks that may damage your device
  • Zinc formula provides more energy to your high-powered devices due to excellent ion transfer
  • Use for power-hungry devices such as flashlights, stereos, and portable kitchen equipment
  • Store for up to 12 years without losing any power
Quality Rating:
UPC Code:012800522965
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Rayovac 815-4TFUSK Specs

Shipping Weight
0.22 lb.
Made in America
Store Shelf Life
12 Years
Alkaline Batteries

Customer questions about this product

What is the battery life of Rayovac’s 815-TFUSK AA Fusion battery?
Because the output of a battery can vary across devices and by the load placed on the battery, the following are some average run times of this AA battery: 8 hours in a toy, 9 hours in a CD player, and over 54 hours in a remote, radio, or clock. For more information on battery life for this item, please see the spec sheet.
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Rayovac 815-4TFUSK Details

In today's high-powered world, sometimes your typical battery just can't stand up to the task. Upgrade to the Rayovac 815-4TFUSK Fusion AA advanced alkaline batteries to make sure you are getting the most power out of every battery. It is the longest lasting alkaline battery on the market according to average ANSI performance tests and lasts anywhere from 1.5 to 2 times longer than your standard battery! This means you save both time and money by changing batteries much less frequently in your busy establishment. They also use advanced power rings to ensure maximum power capacity with a consistent performance that ensures your device always gets safe, reliable power. Since these batteries hold their power for up to 12 years in storage you can use them to stay stocked, and they are reasonably priced compared to their competitors so you won't break your budget.

When you need to constantly use a high-powered device, such as flashlights, stereos, electronic faucets, or any wireless device like microphones, pagers, or computer equipment, the Fusion line is your best choice. The breakthrough zinc formula is designed to create better ion transfer, which means the battery can supply more powerful energy to your device. This makes these AA batteries particularly useful in heavy-duty applications where the batteries require frequent use. To ensure safe use, each battery is tested twice before being packaged so that you can rely on each battery to perform with excellence without worry of leaks that can damage your devices. Since these are alkaline batteries, they cannot be recharged.

Due to US DOT shipping regulations, we are unable to ship this product to Alaska, Hawaii, and international destinations. It is also ineligible for next day or second day shipping. Please contact Customer Solutions prior to placing your order if you have any questions or concerns.

  • Made in America

    Made in America

    This item was made in the United States of America.

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Rayovac 815-4TFUSK

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Overall User Rating

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4.2 stars from 6 reviews


4 reviews rated this 5 out of 5 stars.

1 reviews rated this 4 out of 5 stars.

0 reviews rated this 3 out of 5 stars.

0 reviews rated this 2 out of 5 stars.

1 reviews rated this 1 out of 5 stars.

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Customer Reviews


junk batteries.. wont be reordering these again. I used them in a few things and they failed after only a couple days. not high quality at all

Thomas H. from Great Lakes Grinders on 04/18/2020

Thank you for your feedback! We’re sorry you did not prefer this product. For recommendations, please contact our Customer Solutions team.

WebstaurantStore Customer Solutions

I used this for my flashlights. They lasted a good while (comparable to other battery brands) and no battery leaks as far as I'm aware

Angela K. on 01/23/2020

These may not be rechargeable but we have always used this brand of batteries. They always seem to last the longest out of all the other brands that we have tried. I am glad that we always have these on hand. They are dependable no matter the device that you use these batteries for .

Joshua H. on 04/19/2019

The Rayovac 815-4TFUSK Fusion AA Advanced Alkaline Batteries - 4/Pack is a great battery when you don't want to be changing the batteries in an electronic device every couple days.

Shari J. on 04/01/2019

These Rayovac batteries are great, they last longer than the Panisonic we were buying, and they are a little more money but pay off in the long run.

Andrew M. from La Gondola Chicago on 03/10/2019

These are long lasting batteries. A pack comes with 4 and they are very inexpensive. I like that they are alkaline and this brand makes other sizes

Daellion G. on 10/31/2018

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