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TLDR Review: Energizer 357/303 Battery

By ShopSavvy Team

Published: April 5th, 2025

Pros

•The Energizer 357/303 Battery offers excellent performance with strong quality and lifespan.
•It consistently outperforms many cheaper alternatives and meets user expectations.
•Users report reliability in performance, often considered ten times better than loweost options.
•The threack packaging provides convenience with extras for future use.
•It effectively replaces multiple battery types, confirmed as equivalent to 303 or SR44 batteries.
•Users are generally satisfied with its longevity and express a willingness to purchase again.
•The battery worked perfectly upon installation in various devices, such as a cooking thermometer.
•It successfully revived a nounctional calculator, maintaining reliability over weeks of use.

Cons

•The high price is a concern for some, though justified by its superior performance.
•The packaging is described as extremely difficult to open, posing safety risks that require sharp tools.
•Availability in local stores is limited, causing reliance on online purchasing.
•Preference for a singlack option exists, but only a three-pack was available.

Bottom Line

The Energizer 357/303 Battery is a top-tier choice for devices needing reliable, long-lasting power. While it features a higher price tag and challenging packaging, its performance justifies the investment, outperforming cheaper alternatives consistently. If the packaging is a significant concern, it might be worth considering similar batteries with easier accessibility if available in your region.

Lowest at Amazon

$5.29 at Amazon

Lowest at any Popular Retailer

$4.99 at Adorama

How we researched this

About this review: We pulled together findings from professional reviews and hundreds of user reviews, and cross-referenced them with ShopSavvy's pricing data from 138 retailers to give you the short version.