Customer Ratings & Reviews

I think for the price should be cheaper for only two in the pack, but if you need these batteries its well worth the price to keep you on your remote jurney or that old watch running.

Wow, a request from Best Buy to review a Li-MnO2 battery... The C (Li) R (round) 2025 (20 mm diameter, 2.5 mm height) 3V (volts) battery has functioned exceptionally well during the two week period following the demise of its predecessor. It has neither suffered from the deleterious effects of rapid-discharge nor detonated. Li (lithium) metal (or an intercalation compound--Li is "captured" between the basal planes of graphite "LiC8") = anode (current enters, e^-1 leaves) MnO2 (manganese (IV) oxide) = cathode (e^-1 enters, current leaves) ***This is not to be confused with Thunderdome, i.e., two men enter, one man leave, even though many electrons flow prior to hearing the clap of thunder*** The Li cell is filled with an organic (Li metal reacts readily with water) solvent that: 1) does not react with Li metal (Li metal also readily reacts with, for example, carboxylic acids and alcohols: such a reaction in a sealed system would produce very energetic catastrophic failures as a result of a combination of pressure and the reactivity of H2 with O2), and, 2) allows for the dissolution of LiClO4 (lithium perchlorate). Its redox chem is rather straightforward in which; lithium is oxidized (0 to +1) and manganese is reduced (IV to III). Li <---> Li^+1 + e^-1 MnO2 + Li^+1 + e^-1 <--> LiMnO2 ------------------------------------------------- Li + MnO2 <--> LiMnO2 Oh, I only bought a four (4) pack because single (1) packs were not in stock. Thanks Best Buy! Now I have three (3) spare Li-MnO2 CR2025 3V batteries.

Car key fab stopped working. Needed new battery. It was great I could get it shipped so fast.

Batteries were a great value, and high quality! Needed them for a thermometer I keep in my house, but it was hard for me to find the batteries elsewhere...As soon as I got this pack I popped one into the thermometer and it came back to life. I have a feeling these new batteries will last a while!

Had some old keyfobs for my car that stopped working and realized they needed new CR2025 batteries, and these were the only ones available at Bestbuy. Popped them in and the keyfobs were good as new again, and I fully expect them to last a long time given Energizer's reputation as a trustworthy battery brand.

Can always use batteries. Seems to work well, although unable to say how long they last.

Works as expected to power up my devices long batterylife

Great quality! Exactly what I was looking for. Thank you!

These batteries are really good to have, I should have bought 2 packs

These batteries were purchased for my key fobs and were not only charged ABOVE 3V but also were LESS EXPENSIVE than the average battery from other brands, which was not expected as it is a name brand.

The batteries purchase was a good price and quantity

Great but it is almost impossible to open the package. However this seems to be a problem no matter what brand.

perfect product and the price was right. delivery was good too.

They fit and do the job. Know idea why so many of similar size and voltage

Super helpful staff at the store and products are easily accessible for customers to check.

Great product that always performs exactly as expected

Good set of batteries, works as it should! Hoping they will last a long time as advertised

These are reliable, strong, and long lasting very happy with my purchase

Great product and affordable Worth every penny, last longer than other

Easy to install, fair price, friendly employees in an area notorious for their lack of customer service. Thank you.