Customer Reviews

[This review was collected as part of a promotion.] Perfect long lasting battery for my watch and car key fob. The packaging is extremely childproof. It took me longer to open the packaging then actually replace my battery. Energizer always produces great batteries and these are no different with long lasting use I rely on.

[This review was collected as part of a promotion.] I used the Energizer 2450 Lithium Coin Battery to replace the one in my BMW key fob, and it worked exactly as expected. Fit was perfect, and the car recognized the key instantly after the swap. It’s been over 5 months now and no low battery warnings, which is great considering how often I use comfort access. I’ve tried off-brand batteries before that died within weeks — this one is holding strong. Only downside? The packaging is kind of a pain to open. Definitely requires scissors or a knife — not the easiest if you’re in a rush. But once it’s out, the battery itself does its job. If you’re replacing your BMW key battery, I highly recommend sticking with this one. Solid performance and peace of mind.

[This review was collected as part of a promotion.] Don't let their small size fool you: This Energizer 2450 Lithium Coin 3-Volt Battery delivers big time on long-lasting, dependable power for your coin-battery-operated items. From heart rate or glucose monitors, to remotes, keyless entry systems, key fobs, watches, toys and games, and even more specialized devices, our coin batteries are compatible with the devices that fit your life, so you can keep going. These reliable and durable Energizer Coin Lithium Batteries are able to withstand a wide range of temperatures (from -22 Deg. to 140 Deg. F) and can hold power in storage for up to eight years, giving you coin battery power you can depend on. Responsibly designed with zero mercury, it's easy to see why Energizer Lithium Coin Batteries are the right choice for your specialty devices.

[This review was collected as part of a promotion.] Energizer is a brand I depend on to work when I need it to. I needed a battery for my car key fob and this came in handy. The battery fit perfectly and now I don’t have the fear that I won’t be able to get into my car. The two pack is great so you have a spare if necessary. Love that Energizer is readily available at almost any establishment.

[This review was collected as part of a promotion.] Using for our fire alarm. It took me about twenty minutes to try to get it open. “Child resistant” is an understatement haha which I love! I’m not sure what else these are compatible with but for fire alarms they work great. Accurate to smoke etc. comes with 2 in the package. Always appreciate the quality of energizer batteries. These are no exception.

[This review was collected as part of a promotion.] These fit perfectly in my candles! The one on the left was changed using the new battery and it is much brighter than the other using a different brand. The only problem is it is very hard to get out of the packaging which is probably for safety but after I got the battery out everything was super easy to switch over and fit perfectly!

[This review was collected as part of a promotion.] This energizer 2450 battery is gifted by influenster. It is known for its performance. This brand of battery is our family’s favorite brand because it last long and compact and compatible to most of the devices we own. Comes in a secure package for safety.

[This review was collected as part of a promotion.] Easy to install, pack of 2 is convenient. Long lasting and reliable battery from a trusted brand energizer. Child resistant packaging, Highly recommended.

[This review was collected as part of a promotion.] Energizer is a great brand with great value. They always perform well and for a extended period of time. The packaging was easy to open and it was compatible with several of my devices.

[This review was collected as part of a promotion.] Got this for my Nixon watches that take this style battery. Very easy to replace.