1/2 AA Size LS 14250 ER14250 3.6 Volt 1200 mAh Lithium Batteries 4 Pack, Tyrone Batteries Compatible for Dogwatch Dog Collar and Some of Movement Monitor/Home Security System/Alarm System

I am all for the rechargeable batteries! Especially when they are the AAs! I am glad I came across these because the charge lasts a long time and it is super durable and I don’t have to keep spending the money on replacing them frequently

Good price good quality, best value for the money.

Item was perfect and arrived quickly.

Slow shipping but a great product. Would buy from them again

Love these. We bought all the sizes we use and once you have paid the price, which is a bit higher, then no more repeat buying. We of course have a charger

These are 3.6V batteries, meaning, when new they will measure at least 3.6V, typically closer to 3.7V. None of the 4 batteries measured as new, closer to 3.5V unloaded and when loaded to less than .1C voltage dropped to 3.0V or less. What I received were old, stale batteries, not fit for sale.

Unlike two other brands of batteries of this size I bought through Amazon, THESE 1200ma BATTERIES CAME FULLY CHARGED AND ACTUALLY FIT IN MY DEVICE. All of the “other brands” eight batteries I purchased arrived either stone dead or ALMOST dead. Additionally, I had to peel the labels off of 1/2 of these other “brand X” batteries to reduce the diameter enough to fit them in my device! I HIGHLY RECOMMEND THESE TYRONE ER14250 3.6 Volt 1200 mAh Lithium Batteries. THEY FIT AND WORK AS PROMISED! Should I need more, I WILL DEFINITELY BUY THIS BRAND AGAIN!

The battery works perfectly in my radon monitor.