Batteries have become an everyday companion in people's lives. Not a single small electronic device can do without them. Each device requires its own battery with certain characteristics. Therefore, you need to have them choose and select analogues. In this article we will talk about 389 or 389A.
Content
Specifications 389
Specifications for 389 are as follows:
| Parameter | Value |
|---|---|
| Basic designation | 389 |
| View | Silver zinc |
| The form | Tablet (Coin) |
| Capacity | ~ 100 mA / h |
| Voltage | 1.55 V |
| Analog 389 | Read more HERE |
| Diameter | 11.6 mm |
| Height | 3 mm |
| Working temperature | from -20 to + 50˚C |
| Weight | 1.9 g |
| Shelf life | up to 4 years |
The 389A batteries are rounded and look like a tablet or cylinder. The case is round, and the contact area is narrow. Low internal resistance and high stable charge allow it not to discharge for a long time. Even when the power source is inactive, self-discharge is not more than 1 - 5 percent.
Type HD means that they can be used in devices with high and uneven power consumption. Due to the high cost of the elements from which the battery is created, they are produced only in the form of miniature tablets.
In contrast, alkaline does not flow. But alkaline have a low price and can be easily replaced by silver-zinc, having the same shape and size.
Attention! Due to their small size and round shape, these elements can be easily swallowed by children. It is recommended to keep away from children, as, once in the stomach, they can cause severe chemical poisoning.
Areas of use
Due to their parameters and unpretentiousness to the working environment, they are used in various devices for home and office use:
- laser pointers;
- control panels;
- calculators;
- LED flashlights;
- quartz and electronic watches;
- Kids toys.
Analogs of the battery 389
Labeling of these batteries may vary depending on which company produced them. For example, 389 is a development company Renata. Analogs are no different from the original batteries and they can be replaced with the following modifications:
Batteries bearing these designations are identical to each other. They have a shelf life of up to 5 years and a service life of 3 years. They can be stored at temperatures from - 20 degrees Celsius to + 50.
Can I charge the 389 battery
This type of battery is not rechargeable, since it is not a battery. In fact, this is not a big deal, since their price is not at all big, and the service life is up to 10 years. Even with regular use of the device, it will work for at least 2-3 years.
If you try to charge, it can lead to depressurization of the case. As a result, electrolyte will be spilled in the room, a fire is also possible.
Popular manufacturers and their features
Popular manufacturers of this type of battery include:
- Renata 389;
- Varta;
- Duracell
- Maxell
- Sony
- Seiko.
All these companies are distinguished by adherence to GOST’s, European standards of quality and safety. Unlike Chinese brands, the ones listed above have already established themselves as reliable companies that should be trusted.
What to look for when purchasing
When buying 389 batteries, the consumer should always pay attention to voltage and power. Next comes the size. Since you’ve purchased the wrong size, you may not be able to approach the site for the power source on the device. If there is a larger battery, then it simply will not fit.
If less, then for a steady and constant contact you will have to put a piece of paper.Therefore, when buying such small batteries, you should always bring the original with you, so that the seller can pick up the desired item from the outside designation and size.
