Best CR2025 Batteries for Key Fobs: Top Brands Compared

Every CR2025 is the same size (20 mm x 2.5 mm) and the same 3V lithium manganese dioxide chemistry, so the real differences between brands are consistency, freshness, packaging, and how easy they are to find. A good name-brand cell typically lasts years in a fob. A stale or counterfeit one can fail in weeks.

Below we compare the main brands, explain who each one suits, and list what to check before you buy.

Best CR2025 Batteries for Key Fobs: Comparison

Typical capacity for a CR2025 is about 150-170 mAh across these brands. Published figures vary slightly, but in a key fob the difference between name brands is small compared with the effect of freshness and storage.

Panasonic CR2025: Best Overall Value

Panasonic CR2025 cells are a common choice for electronics makers, and that consistency carries over to retail packs.

• Pros: Consistent performance, widely trusted, usually good value in multi-packs.
• Cons: Popular target for counterfeits on marketplaces; buy from the brand’s store or a trusted seller.
• Who it suits: Anyone who wants a dependable cell and a few spares for multiple fobs.

Energizer 2025: Easiest to Find

Energizer 2025 batteries are on the shelf at most pharmacies, grocery stores, and auto parts stores, which makes them the practical pick when the fob dies unexpectedly.

• Pros: Easy to find, child-resistant packaging, consistent quality.
• Cons: Single packs at retail stores cost more per cell than multi-packs.
• Who it suits: Drivers who need a battery today, or prefer buying in person.

Murata (Sony) CR2025: Japanese-Made Quality

Murata took over Sony’s battery business in 2017, and Murata CR2025 cells continue that line. Some older stock still carries Sony branding.

• Pros: Strong reputation, consistent manufacturing.
• Cons: Less common in US stores; Sony-branded packs may be older stock, so check the date.
• Who it suits: Buyers who prefer a Japanese manufacturer and order online.

Maxell CR2025: Reliable Alternative

Maxell CR2025 is another long-established Japanese brand that makes coin cells for consumer and industrial use.

• Pros: Reputable maker, often good value.
• Cons: Shelf availability varies; marketplace listings can mix in older stock.
• Who it suits: Anyone who wants a name-brand alternative to Panasonic.

Duracell 2025: Bitter Coating for Child Safety

Duracell 2025 cells come with a bitter coating meant to discourage children from swallowing them, plus child-secure packaging. That is a real safety benefit, because swallowed coin cells can cause severe internal burns.

• Pros: Added safety layer, widely available, consistent quality.
• Cons: A minority of users report that coated Duracell coin cells did not make reliable contact in certain devices. Duracell states the coating does not affect performance, and most fobs work fine with them. If a new Duracell cell does not wake your fob, try another brand before assuming the fob is faulty.
• Who it suits: Homes with small children or pets where spare cells may get loose.

Buying Guide: How to Pick a Good CR2025

Since all CR2025 cells share size and voltage, focus on these points:

• Confirm the size first. Read the code on your old battery. A CR2032 is thicker (3.2 mm) and a CR2016 is thinner (1.6 mm). See CR2032 vs CR2025 if you are unsure.
• Check freshness. Look for an expiration or manufacture date on the package. Lithium coin cells keep well, but fresher stock gives you more years in the fob.
• Avoid suspicious bulk lots. Very cheap packs of 20 or more from unknown sellers are where counterfeits and old stock show up.
• Skip rechargeable look-alikes. LIR2025 cells run at about 3.6V when charged and are not a drop-in replacement for a CR2025 key fob battery.
• Buy what you will use. A 2- to 6-pack covers a couple of fobs plus spares without letting cells age in a drawer.

Quick Checklist Before You Install

• The old battery says CR2025 (or DL2025 / ECR2025).
• The new cell is a name brand with a valid date.
• You noted which side faced up before removing the old cell.
• You handle the new cell by the edges to keep the faces clean.
• The case snaps shut fully with no gaps.
• All buttons work near the car after installation.

For step-by-step replacement, follow our CR2025 battery replacement guide. For other sizes and vehicles, see the key fob battery size chart and our broader best key fob batteries roundup. If the fob still does nothing after a fresh cell, see key fob not working after battery replacement, and if it lost its pairing, how to program a key fob.

How Long Should a Good CR2025 Last in a Key Fob?

A name-brand CR2025 typically lasts about 2-4 years in a standard remote, and somewhat less in a proximity smart key that is always listening for the car. If a new cell dies within months, the brand is rarely the cause. Look instead at a stuck button, a fob stored near the car, or a remote with worn internals. A fresh CR2025 reads about 3.2-3.3V; our key fob battery voltage guide explains when a reading means it is time to replace.

Where to Buy CR2025 Batteries

Pharmacies, grocery stores, big-box retailers, and auto parts stores usually stock Energizer and Duracell 2025 cells, which is the fastest option when a fob dies. Online, multi-packs from the brand’s own storefront or a major retailer are usually cheaper per cell. Whichever route you choose, inspect the packaging for a clear brand name and date, and avoid packs with misspelled labels or no expiration information. See where to buy key fob batteries for more options.

Frequently Asked Questions