These are much better performing than Rayovac, Energizer, and Duracell rechargable batteries which I used to use a lot of. I am very hard on batteries, critical on quality batteries, and use them in many different devices. So if you are looking for a good quality rechargeable that hold a charge these are an excellent choice. They fit great in everything so far I have had no issues with them being too long or have not had problems with the outside diameter like other rechargeable batteries. Have

Rechargeable batteries is the way to go. Especially when you have Christmas lights for outdoor. And other things in the home. In the long run it saves time and money

After though testing with a 6 hour drain down to 1 volt I came out with an average of 1800- and one 2100 mah while good I was hoping of the listed 2800. the every energizers test out at 2100 MAH and they were listed a little more honestly at 2300 MAH these are cheaper , time will tell if they improve are a few cycles or degrade. I have some every energizer AA that are still going strong after several years.