OmniCel ER14250 3.6V 1/2AA Lithium Standard Battery Button Top, 4 pack

I like the fact that each battery is stamped with the month and year of manufacture. Having the date code on the battery is a nice feature. In my experience, most of these 14250 batteries don't do that. All the batteries tested good when I received them.

Worked great. Good price.

Works great on eve window sensors.

Decent quality.

Excelente calidad

When the security system alerts that it's time to replace any of the motion detector batteries every other year or so, we replace them all at the same time. These work great and the price is right. Update 10/22/2021 - a few years later, batteries need to be replaced, purchased a new set.

Great batteries! I use them in my Pyle PTHDL170 USB weather logger at our remote cabin and they work very well. I try to never do a full drain on my batteries to the logger, that way it will always record data without any lapses, so I am not sure of their total life. I usually can get a little more than 4 months out of one of these 1/2AA batteries and I have nearly 4 months on one of these XENO batteries now, so they seem to be high quality with fresh dates. Can't beat the price, these 1/2AA can be expensive in battery stores.

I should have read the reviews before purchasing. DO NOT BUY THESE BATTERIES. Open circuit voltage on all 4 batteries was 3.5 volts, right out of the package. When put into service under load (targeting laser) voltage dropped to 2.7 volts. These batteries are junk. I contacted seller. Will see if my cost plus tax will be refunded. Seller is giving me a runaround and arguing that there was nothing wrong with the batteries. Seller claims that I don’t know how to use the batteries properly. I am an electronics expert with a Master’s in Electrical Engineering. These people are the WORST I have ever dealt with through Amazon. After several days of arguing with seller, I received a refund for the purchase price of these worthless batteries, but not the sales tax. I phoned Amazon and an extremely nice agent credited $5 to my account to cover the sales tax and the hassle of dealing with this lousy seller. Amazon went over and above expectations to make me whole.

A bit expensive but helped revive a 1998 bondai blue Imac that would not keep time because of a dead and leaking clock bettery. It is a perfect drop in replacement and I beleive it also is compatibe with older Power Macintosh computers.

good

Pricey but all came fully charged at 3.65 volts

Totally useless. Cero power like if they were used already. Very disappointed with the product . No buying that product again

We'll, see how long they last but seems like a good product. I would but them again but given that there are 4 I won't need to for 12 more years as I got 3 years out of the last one.