In this age of technological advancement, electrical devices are everywhere. Choosing the right battery can be challenging with today's wide selection and variety. This article will focus on the SR521SW (SR521) battery.
Technical specifications
| Standard size | SR521SW (SR521) |
| Material | silver-zinc |
| Form | round tablet |
| Voltage | 1.5 V |
| Capacity | 14 mAh |
| Weight | 0.23 g |
| Height | 2.15 mm |
| Diameter | 5.8 mm |
| Operating temperature range | -40 °C … 50 °C |
Manufacturers
— ANSMANN
— Maxell
— Camelion
— REXANT
— ROBITON
— Perfeo
— Sony
— Varta
— TROPHY
Analogues
— D379
— V379
— S521E
— R521
— SR63
— SR521
— 280-59
— SB-AC/DC
— AG0
Main differences from other similar batteries
High tightness and stable low internal resistanceThese are the main distinguishing features of the SR521 battery. It also maintains a constant voltage throughout its entire service life. The absence of toxic components makes it environmentally friendly.
Where is it used?
SR521SW (SR521) is well suited for electronic devices with low and uniform power consumption, such as:
- a wristwatch without additional functions
- remote control
- calculator
- car alarm
- keyless car remotes
- toys
What is prohibited to do with a battery?
When working with the SR521, do not freeze or defrost the "coin cell." Exposing it to high temperatures, such as direct sunlight, near a stove, or near a fireplace, is not recommended, as this will increase self-discharge. Avoid exposing the cell to sudden temperature changes during transportation, as condensation may form, which will reduce the product's lifespan.
Consumer Advice
When purchasing, it is necessary to carefully inspect the product packaging:
— the physical consistency of the filler should be gel-like,
- the packaging is intact,
— the expiration date does not exceed the one indicated on the packaging,
- additives preferably with gas absorption,
— the tablet should not have any signs of corrosion, white coating or cloudiness.
To extend shelf life, it is best to store in a cool, dry place.
The SR521SW (SR521) battery is reliable and safe to use, as it is highly sealed and contains no toxic elements. Its consistently low operating resistance ensures a long service life when used and stored properly.
