Each card pack sold in this link contains 10 SR626SW/377 watch batteries with multiple compatibility-equivalent to models of the following brands: SR626SW, 377, AG4, 377A, 626, SR626, LR66, LR626, 1.55 V watch battery, 626SW, V377, 377 / 376, v376 /377. </br> Suitable for all kinds of small electronic devices, such as: watches, toys, calculators, scales, remote controls, watches, children's books.</br>1.The batteries sold by KaPonsec have been strict The quality control and power test, and passed the CE certification to ensure that each battery has sufficient voltage and long life. At the same time, the zero mercury, pollution-free design makes users more at ease. </br> 2.Using the best materials and precise leak-proof technology can effectively retain battery power and extend battery life and storage time. The validity period is at least three years, far exceeding other batteries with a shelf life of 1-2 years.</br> 3. The diameter is 6.8 mm and the height is 2.6 mm. The battery is made of high-quality materials. The new technology allows the battery and electrical appliances to have a larger contact range, providing you with reliable and long-lasting power.</br> 4.Professional child-proof packaging design can reduce the occurrence of accidents. Ingestion by children (but parents still need to keep the removed batteries out of children’s reach.)</br> 5. Do not touch the batteries to avoid short circuit, reverse connection, and battery heat And electric shock. explosion. It is recommended to store the battery in a low temperature and dry environment, which can relatively extend the storage time of the battery.</br> 6. You will get 10 packs of fresh SR626SW / 377 watch batteries in precise blister packs.