Best Coin Cell Batteries in 2026: CR2032, CR2025, CR2016, CR2450, CR1632 and LR44 Packs Ranked by Owners

The CR2025 is the thinner sibling of the 2032, the same 20 mm across but 2.5 mm thick, and it is the cell in a great many car fobs, watches and small remotes. The Amazon Basics eighteen-pack is the most-reviewed coin cell here by a wide margin, and that enormous owner base gives it a strong rating: cells arrive fresh, hold up in fobs for a year or more, and the child-safety packaging keeps the spares tidy. They are mercury free and rated for extreme temperatures. What you give up versus Panasonic is a stated shelf-life figure and the comfort of a premium name. The one caution is the one that applies to every 2025: it is not a 2032. Some devices tolerate the thinner cell with a shim, many do not, so check the number moulded into the old battery before ordering. For the right device, this is the sensible everyday pack.

If you run a string of LED tea lights, a house full of window sensors, a classroom of calculators or a fleet of remotes, the arithmetic changes and the PGSONIC 120-pack is the answer. The cells are rated at 240 mAh, about 30 percent more than a conventional CR2032, with a five-year shelf life, nickel plating and a leak-free, mercury-free construction, and over ten thousand owners rate them highly, which is a remarkable base for a bulk generic. The cost per cell is a fraction of the branded blisters. The trade-offs are honest ones. Bulk trays are not child-resistant packaging, so this pack belongs on a high shelf in a home with small children, the shelf life is shorter than Panasonic’s eight years, and 120 cells is a lot: most households would not get through them before they lose capacity. For hobbyists, landlords and anyone who buys for a small business, though, it is the clear value pick.

Open a Toyota, Honda, Nissan or Mazda key fob and there is a good chance the cell inside says CR1632, a 16 mm coin that supermarkets rarely stock. The Amazon Basics twelve-pack fixes that: thousands of owners rate it highly, almost all of them for exactly this job, and report fobs working for a year or more per cell. The packaging is child resistant, the cells are mercury free and rated for extreme temperatures, and the pack is easy to store so that the next time the dashboard says “key battery low” the fix is in the drawer. Because the size is uncommon, there are fewer brand-name alternatives, and Amazon Basics does not put a number on shelf life. Twelve cells is also more than two fobs will use in several years, so share the pack or accept that some will sit. It remains the easiest way to solve a surprisingly common problem.

This is the Panasonic version of the CR2025 for people who want the brand their fob came with. Two ten-count packs give twenty cells with the same proprietary sealing, eight-year storage life and 14 to 140 degree operating range as the CR2032 pick, in child-resistant packaging that cites IEC, ANSI, CFR and UL standards by number. Thousands of owners rate it highly and the reviews repeat the same story as the 2032: full voltage on arrival and long life in watches and remotes. The Amazon Basics 2025 above is cheaper and has a far bigger review base, which is why it ranks higher; the Panasonic earns its place for the stated shelf life, the standards list, and the convenience of two separate packs, one for the kitchen drawer and one for the glovebox. If you only buy coin cells once every few years, the extra per cell is worth it for cells that will still be fresh when you need them.

The CR2450 is the big coin cell: 24.5 mm across and 5 mm thick, with roughly three times the capacity of a CR2032, which is why garage door remotes, some BMW and Mercedes fobs, flameless candles, bike lights and Bluetooth sensors use it. Tenergy’s two twenty-count packs are the pick for the size: a ten-year storage rating, the longest on this page, an operating range down to -4 degrees Fahrenheit for a remote clipped to a cold garage visor, and an anti-leak construction from a brand that has been in rechargeable and specialty cells for years. More than a thousand owners rate it highly. The caveats are the pack size and the packaging: forty cells is more than a household will use for a decade, so this suits people with a lot of candles or sensors, and the trays are not child resistant. Make sure your device really takes a 2450 before ordering; it will not fit a 2032 slot.

The CR2016 is the thinnest of the 20 mm family at 1.6 mm, used in slim watches, some car fobs (often two stacked), small LED lights and some blood glucose meters, and it is harder to find in branded packs than the 2032. LiCB’s forty-pack is the pragmatic answer: grade A cells, CE and RoHS certification, mercury free, rated not to leak in a device for three years, and an 18-month warranty from a company that has specialised in batteries since 2006. Several hundred owners give it a solid rating, with most criticism about individual cells reading low on arrival. The three-year shelf life is the shortest in this guide, so buy it when you need it rather than for the emergency drawer, and the listing’s bullet points confusingly mention twenty cells while the title and shipped pack say forty. For the right device it does the job at a sensible price.

The LR44 is the odd one out here because it is not a lithium coin cell at all: it is a 1.5 volt alkaline button, 11.6 mm across and 5.4 mm tall, also sold as AG13, A76, 357 and 303, and it powers a staggering range of cheap things, from talking toys and calculators to laser pointers, thermometers, glucose meters and keyring lights. NICEBATT’s 24-pack is the best-rated of the many clones: rated 201.5 mWh, leak resistant, mercury free, with several hundred owners giving it a strong rating. Two cautions. Alkaline LR44s sag in voltage as they drain, so for a watch that specifies a 357 silver-oxide cell, buy a 357; the alkaline will work but die sooner. And the listing text mentions sixty cells in one place while the title and shipped pack say twenty-four. For toys, calculators and lights, which is where most LR44s go, this is the pack to keep.