🔋 Power your precision with confidence — never miss a beat!
This 20-pack of 364 SR621SW silver oxide watch batteries offers stable 1.55V output with high energy density cells, ensuring reliable and long-lasting power for watches, calculators, and other small electronics. Featuring leak-proof design and a 3-year shelf life retaining 90% capacity, these CE and ROHS certified batteries provide versatile compatibility across numerous models, backed by over two decades of industry experience.
R**T
No problems, good batteries
Affordable and effective.
J**R
Great vlaue
Worked great. Good price.
C**R
Great battery
Great price, great battery
T**S
Works as expected
Shipped quickly. I've only used one battery so far in a watch, but it works and keeps time.
M**O
unbeatable price
Excellent battery and good price
P**A
Works and saves!
These silver oxide SR6521SWs work well in my devices. Time only will tell if they last as long, but the package says they expire in 12/18. Definitely worth trying!
C**A
Watch batteries
Excellent price and on time delivery
C**L
Worked out
I was being ambitious to try and change batteries, and some of my watches that needed this type. They are extremely small so I did have to buy a watch battery kit for all the instruments to be able to put these into my watch. But my watch did work so I would definitely buy these again now that I have a Watch repair kit with the right instruments.
Trustpilot
2 weeks ago
2 months ago
