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

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 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.

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.

Decent quality.

Works great on eve window sensors.

Excelente calidad

I received these in a bubble wrap baggie with a sticker, and was a bit upset. I took them out and looked on the side and saw a 2012 date, and was really upset. But after looking into it, that's not the date of expiration but the date of manufacture. I'm using these in dive computers, so I need excellent batteries because I depend on these computers. I've had them in since the day they arrived, and so far no problems. For the price, it's exactly what I should have expected, and that's not a problem. They're exactly what I needed, as long as they last as long as they should.

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.

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.

good

Pricey but all came fully charged at 3.65 volts

Picked these up as replacement batteries in Campbell Scientific dataloggers. Did the trick.

I purchased a different type from Amazon previously and they didn’t even work. Well one did and by the time I tried to use the other 3 they had little to no power. But so far this particular set seems to be very good.