Everyone uses batteries to power electronic devices in one way or another. 389 and 389A batteries are cylindrical, with their height significantly smaller than their diameter. This type, also known as button batteries, is one of the most commonly used batteries.
Technical specifications
- manufacturing material - silver-zinc;
- capacity — 80 mAh;
- voltage - 1.55V;
- diameter - 11.6 mm;
- height - 3.1 mm;
- shelf life - 3 years.
Manufacturers
Manufacturers of 389 and 389a batteries:
Analogues
Also, batteries 389 and 389a have analogues from other manufacturers, these are SR1180W and SB-BU, from Sonyand Seiko, respectively. Similar models, such as the 344 or 366, can be found on the market, but there are fundamental differences depending on the brand and name:
- Types. They may vary by type, with consumption being either uniform or uneven.
- Chemical composition. There are silver-zinc, manganese-alkali, air-zinc, and also lithium cells.
- Difference in diameter and height.
Where are they used?
It is used to supply power to electronic devices such as:
- electronic and quartz watches;
- various children's toys;
- laser pointer;
- scales;
- players;
- keychains and so on.
Difference from other similar power elements
This 389A battery is distinguished by its reliability, guaranteeing long-lasting and enjoyable use of your electronic device.
What should not be done with a battery?
Be careful! Due to their small size, batteries can be swallowed by children. Do not leave children unattended with toys containing small button batteries.
Where to buy?
You can purchase the 389 and 389a power supply in the following online stores:
- Computer Market;
- Sprint sport;
- Radio Maxi;
- e2e4;
- Aliexpress.
Consumer Advice
As a reminder, when purchasing a 389 battery and its analogues, it is worth paying attention to:
- diameter;
- height;
- capacity;
- voltage;
- material of manufacture.
We've reviewed one of the most popular button batteries, the 389 and 389A. Don't let their small size fool you—they'll last you 2-3 years!
