Trusted Reviews is supported by its audience. If you purchase through links on our site, we may earn a commission. Learn more.


Although the long shelf life and leak-free guarantee are good to see, in my tests, the Energizer Max AAA delivered less capacity at a higher price than the competition. Given these results, there are better options to be had.


  • Long shelf life
  • Leak-free guarantee
  • Wide choice of pack sizes


  • Lower capacity than rivals in my test
  • Better value options are available


  • UKRRP: £4.99

Key Features

  • Battery typeThese are AAA alkaline (non-rechargeable) batteries


From second-best-known-name in batteries, the Energizer Max AAA are designed for long-lasting applications and are guaranteed against leaks for up to two years after fully used.

Readily available and in a wide-range of pack sizes, these batteries can be picked up for a decent price, but they lagged behind other AAA batteries in my tests.

Energizer Max AAA one battery lying down
Image Credit (Trusted Reviews)


  • Overall capacity behind the competition in my tests
  • Weak initial high-drain test

Energizer says that its Max AAA batteries have a shelf-life of 10 years, and are leak-free for up to two years after being fully used. Based on the company’s data, when discharged to 0.8V, the batteries have the maximum capacity when used with a lower load.

I tested these batteries using an Ansmann Energy XC 3000. First, I tested the starting voltage of the batteries, which should be around 1.5V for alkaline batteries. Measured at 1.52V, these batteries were ideal out of the box, which I bought from Amazon.

I picked four random batteries for my high drain test, which uses a current of 600mA (+/- 20%) and a cut-off voltage of 0.94V. After the initial test, I measured capacity at 269mAh, which is off the pace set by rivals, such as the Amazon Basics Alkaline AAA, or the Duracell Plus AAA.

I give batteries a couple of hours to rest and cool down, then re-run the test to measure the resulting capacity. Here, the batteries returned a measured capacity of 136mAh, giving me a total measured capacity of 405mAh.

Energizer Max AAA capacity graph
Image Credit (Trusted Reviews)

This suggests that these batteries are better off in low-drain tasks, such as remote controls, rather than high-drain tests such as powerful torches or grooming equipment.

Latest deals

The Energizer Max AAA batteries are available in lots of different pack size, ranging from around 63p per battery down to around 59p per battery I’ve listed the price of the 8-pack here (around 63p battery), as it offers a good compromise between price and pack size.

Should you buy it?

If you want batteries that are guaranteed leak-free, these could be a good choice for you.

With low measured capacity in my tests, there are better-performing batteries that cost less.

Final Thoughts

Although they can be bought in good-value packs, my tests show that these batteries are a little off the pace of the competition. The Amazon Basics Alkaline AAA batteries can be bought cheaper and did better overall in my tests.

Trusted Score
rating-star rating-star rating-star rating-star rating-star

Sign up for the Trusted Reviews Newsletter

How we test

Unlike other sites, we test every alkaline battery we review thoroughly over an extended period of time. We use standard tests to compare features properly. We’ll always tell you what we find. We never, ever, accept money to review a product.

Find out more about how we test in our ethics policy.

We use an Ansmann Energy XC 3000 to drain batteries, so that we can test capacity in mAh. After the first run, we allow the batteries to cool and then retest to give us a second reading.

We measure the initial voltage of the batteries, checking that the starting voltage is at least 1.5V.

Trusted Reviews test data

You can see a full breakdown of the data we collected during testing in the table below.

Battery tested capacity

Full specs

The table below details the Energizer’s full specs and how they compare to their closest Duracell rival.

Release Date
First Reviewed Date
Model Number
Battery type
Battery technology
Battery size

Jargon buster


An abbreviation for milliampere-hour and a way to express the capacity of batteries, especially smaller ones in phones. In most cases the higher the mAh, the longer the battery will last but this isn’t always the case.

Why trust our journalism?

Founded in 2003, Trusted Reviews exists to give our readers thorough, unbiased and independent advice on what to buy.

Today, we have millions of users a month from around the world, and assess more than 1,000 products a year.

author icon

Editorial independence

Editorial independence means being able to give an unbiased verdict about a product or company, with the avoidance of conflicts of interest. To ensure this is possible, every member of the editorial staff follows a clear code of conduct.

author icon

Professional conduct

We also expect our journalists to follow clear ethical standards in their work. Our staff members must strive for honesty and accuracy in everything they do. We follow the IPSO Editors’ code of practice to underpin these standards.