The product is intended for children's books and toys. It does its job well and the durability is quite satisfactory.

For now, they are holding up well in my children's music books. I will come back if anything noteworthy arises.

Less duration than well-known brands such as Energizer, but also a lower price. For children's books, which is what I need them for, they are perfect.

Immediate shipping. As for the durability, it is satisfactory (overly satisfactory compared to their price)

Very good with value for money in quantity because of the use we make in children's music books and games.

For the money they cost, they are very good. They last about half the time of the more expensive ones at a quarter of the cost. If you don't mind changing batteries in children's toys every now and then, they are great.

The aforementioned batteries are useful both for watches and children's toys, such as musical books.

Children's book that takes 3 batteries, finished in 2 days with moderate use... in the same package, 3 others lasted for 2 weeks with similar use... obviously, quality control is not the best... the conclusions are yours.