Not impressed if I'm honest. I normally use power banks and rechargeable batteries. I have a few items that won't accept rechargeable batteries so I purchased these hoping my use would be reduced, they made no difference at all. Still lasted the same amount of time despite promises as supermarket brands.
Not recommended, won't buy again and I'm now ridding my home of the things that don't accept rechargeable batteries to charity. I hope someone else can find s solution for the planet, because these aren't it.