10 x Eunicell AG4 Alkaline button cell batteries - G4 LR66 LR66SW LR626 LR626SW SR626W 376 377

Product Information

Please note that we will provide either Rayovac or Renata watch batteries depending upon availability. You can also use a micrometer to measure the inside of a battery cavity to find out which battery you need.

Also, these batteries have a larger capacity providing a much longer operating time for various devices using a single battery replacement.To prevent confusion and thanks to modern chemistry and battery technology, some manufacturers offer multi-drain 376/377 batteries (compatible with SR626SW batteries, of course) that feature good tolerance to high-drain pulse currents and low self-discharge rate. The easiest but not the cheapest way of replacing SR626SW or any similar watch battery is to let the watchmaker do the job - the watch is carefully opened using special tools, the battery is located and replaced with the new one, and the watch is properly closed. if the battery code after the digits contains 'W', then the battery complies with the IEC 60086-3 watch batteries standard - most manufacturers of '626' batteries label their silver-oxide batteries as SR626SW to emphasize that these batteries are silver-oxide batteries for wrist watches - and if they are good for wrist watches, then they are good for other electronic devices, too.

These batteries are commonly found in wrist watches, calculators, and similar small electronic devices requiring a reliable power source. LR626 (alkaline) or SR626 (silver-oxide) capacities depend on the chemistry, but also on the cut-off voltage of the used device - alkaline batteries' voltage quickly drops, making them not so suitable for electronic devices like wrist watches and similar.Both SR626SW and SR621SW batteries are silver-oxide non-rechargeable batteries suitable for powering wrist watches and other sensitive electronic devices. Another Compatible battery types — dl2450, cr2450n, ecr2450, br2450, kcr2450, 5029lc, lm2450 and etc. On the other hand, the battery compartment intended for the SR621SW battery may not accept at all SR626SW battery, or it may deform.

PRO TIP: If you are having a hard time determining your battery, measure the width of the battery and then the height. Modern LR626/SR626 batteries don't contain mercury, cadmium, and other heavy metals or dangerous toxins.If they get swallowed, these batteries may start electrolytic reactions that may cause chemical burns, which are very dangerous. Common in many devices such as watches, toys and games and calculators, these batteries offers excellent performance with a long operational life. mm, which isn't much - however, while battery compartments intended for SR626SW batteries may accept smaller SR621SW batteries, contacts with the SR621SW battery may NOT be fully reliable. if the battery code after the digits doesn't contain 'P' or 'S', then probably that battery contains organic electrolyte - we emphasize 'probably' because some manufacturers simply drop out these letters when labeling their batteries.