Customer Ratings & Reviews

These batteries were exactly what I needed and the price was great.

Good price for 10 year batteries. Hope they really last that long.

High quality and dependable product with reasonable price. Last longer than most other products such as Duracell and Maxwell

As expected, well packed and continuous voltage delivered

Long lasting battery! Works great for in car keys.

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.

Battery works great in my key fob! The old battery died and this one was full of energy and allowed me to unlock my car again! Wow, amazing!

As expected, quality product, good value, gets the job done

Top of the line batteries long lasting I use them in my out doors cameras they last longer even in the blink door bell

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.

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.

Just like any other battery, it works great and gets the job done.

These batteries are fine, but I wish you still sold your in house brand that were even better at a lower price. Good Batteries

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

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.

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!

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