Some portable devices contain electronic components that cannot be operated on with weak power sources. To ensure the operability of such devices, the MN21 battery is used, since it provides a voltage of 12 volts.
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Technical Specifications MN21
In addition to voltage, there are a considerable number of other parameters that are important for identifying the product, as well as checking its performance. The main features of the MN21 battery are:
| Parameter | Value |
|---|---|
| Basic designation | Mn21 |
| The form | Cylindrical |
| View | Alkaline |
| Capacity | ~ 40 mA / h |
| Voltage | 12v |
| Analogs MN21 | Read more HERE |
| Height | 28.9 mm |
| Diameter | 10.3 mm |
| Weight | 8 gr |
| Feature | Consists of 8 LR932 |
As a rule, the MN21 battery is made with alkaline electrolyte, therefore this product has a significant period of operation, provided it is installed in devices with low current consumption.
Battery Application
The miniature nature of this product, as well as the high voltage at the poles, allows the use of an electric power source in various devices generating a radio signal. It can be alarm key rings, remote controls of toy self-propelled mechanisms, as well as communication facilities.
Often, the MN21 element can be found in wireless doorbells, as well as in autonomous fire and burglar alarm systems.
Battery Analogs MN21
Analogs may be needed when it is not possible to find the original device. For the MN21 battery, these batteries are:
- 1811A.
- 3LR50.
- 8LR23.
- 8LR932.
- GP23A.
- L1028.
- LR932.
- LRV08 (LRV8).
- A23 (V23GA, V23GA, E23A).
The listed batteries can be used for installation in electronic devices that were previously used with the MN21 cell. They can replace both the original product and install such elements instead of any analogue.
Can I charge the MN21 battery
It is strictly forbidden to charge the battery. Actions can be especially dangerous when wires from a car battery are connected to the poles of a battery. In this case, the product will not only not charge, but may explode and cause serious harm to health.
Using “safe” methods, for example, placing an element in the area of the “golden section” in a makeshift pyramid will also be a waste of time.
After the element has worked out its resource, it is necessary to purchase an original product or its analogue to replace it. If you often have to change the batteries, then in this case you should think about purchasing a battery suitable in shape and power.
Popular manufacturers and their features
There are no problems with the purchase of a new MN21 battery, as many manufacturers are engaged in its production. The most popular brands are:
- GP.
- Varta.
- Trophy.
- Duracell.
- Energizer
- Camelion.
- Focusray
- Panasonic
Among the listed manufacturers, the products of the Energizer and Duracell firms have the greatest duration of work. Thanks to the use of alkaline electrolyte, the batteries of these brands often last several times longer, in comparison with cheap batteries.
What to look for when purchasing
When buying a new battery, you should always pay attention to the quality of the packaging and the shelf life of the product. Of course, these actions should be performed only after making sure that the designation of the type of element completely coincides with the original battery or its analogue.
The purchase of a new battery in questionable places should be discarded.Being on open shelves, batteries are exposed to frequent temperature changes, which cannot but negatively affect the performance of the product.
It is recommended to purchase products of the most popular brands. Otherwise, you can buy a low-quality product. The name of the manufacturer is almost always applied to the marking of the battery case or its packaging.
Still have questions about Battery MN21 or have something to add? Then write to us about it in the comments, this will make the material more complete and accurate.
