elxjar (2-Pack) TL-5955 3.6V 2/3AA Battery Replacement for Tadiran TL-2155 TL-4955 TL-5155 TL-5955, Xeno XL-055F, Comp-100 Lithium Thionyl Chloride Battery (ER14335)

Elxjar is my go-to for unique batteries. These are no exception. They come with plenty of juice, fit my device and I haven't had one fail yet. Price is very reasonable and they perform the intended function.

Why did you pick this product vs others?: Well, I wanted to get a long lasting lithium ion battery. I thought it was very cool that it was available as a regular insertable battery. Functionality: Buyer beware: this is not a AA battery. If you’re getting this battery, like I did, assuming this is the case. It is not… I’m not sure what size this is, but it is not AA. It’s like the width of a AA but shorter.

I didn't realize these weren't TADIRAN, it's a strange company name and convinced myself they were replaced/purchased by ELXJAR. Not Lithium Thionyl Chloride, only labeled as Lithium on battery. The German TADIRAN company is still producing a correct and genuine TL-5955 battery, sold on Amazon and also other industrial websites. You're likely replacing the battery in a TANGO TX1 monitor, and so to maintane factory accuracy of measurements, I recommend an authetic TADIRAN TL-5955 battery.