EEMB ER14250 1/2 AA 3.6V 1200mAh Lithium Thionyl Chloride (Li-SOCl₂) Battery Non-Rechargeable Industrial Batteries Er14250 Battery for Meters/Sensors/Home Security Systems (10-Pack)

Fast shipping and good price. Will be ordering more

Total waste — at least two boxes didn’t work at all. I just found out months after I bought them.

Showed up on time and worked. Don’t really know what else to say.

Almost all 20 batteries did not work out of the box. The seller notes that this could be due to passivation but have poor instructions on how to deal with it. I emailed the seller and did not get a response. After loading the batteries with a 20 mA draw, I was able to get about half of them working. Still uncertain if they will last.

I purchased a 10 pack of batteries and put them in my window sensors. The light on the sensors lit up once and then the batteries were dead. I tried them in different sensors, to make sure it wasn't a bad sensor, but it happened in multiple sensors. I couldn't find an expiration date on the batteries, I only found what can be seen in the attached image. DO NOT BUY!

If you carefully read the listing, you’ll notice that the seller is quite transparent about the size and storage process for this type of battery. It’s important to pay attention to these details, as the images can sometimes be misleading, making the battery appear similar to others. Make sure you confirm that this battery is compatible with your specific requirements before purchasing.I personally use this battery for a few sensors, and I’ve found that the device recommendations often prefer non-rechargeable batteries over rechargeable ones. This might be due to the fact that rechargeable batteries sometimes don’t deliver the voltage they claim. In any case, this battery worked perfectly with my device, delivering the right amount of power without any issues.Price-wise, it was competitive when I made the selection, which was a bonus. The outer shell feels durable and of high quality, and the terminals are clearly marked, which is helpful when connecting it to the device. Overall, I’m pleased with its performance and would recommend paying close attention to the product details if you’re considering this battery for your needs.

I can see on the label that the batteries are 1200 mAh and beneath I see a code that I assume is a lot number: EH6016. I also read on the label that they are type ER14250 and the size is 1/2 AA, providing 3.6 volts. I couldn't find any shelf life or expiration date on the battery though. I got plenty of AAA batteries but I ran out of AA batteries for the LED string lights of my 2 small artificial Christmas trees. Even though on the back it says to use two AA batteries with 1.5 volts, I inserted four 1/2 AA batteries to replace two alkaline AA batteries to save time. I stacked two ER14250 batteries together to replace each AA battery and I checked that I aligned the positive and negative terminals correctly. Despite the higher voltage, the LED lights didn't get destroyed and shine brightly whenever I turn them on.In a forum I learned that modern LEDs are quite robust and can handle a range of voltages without being damaged, as long as the current is within safe limits. The higher voltage from the ER14250 batteries might even make the LEDs brighter without causing any harm. I have the same experience. I tested the batteries with all my LED string lights and they work. As these are lithium batteries, I hope they will last longer than the original ones for this Christmas.

Review edit: After seeing my review, the company reached out to me and offered a full refund even though the batteries were 6 months old. Their service was excellent.Original review:I bought a box of 10 6 months ago. Most had at most 50% charge. Now, 6 months later, the 7 unused ones are all dead. A complete waste of money.