The use of batteries in various household appliances allows even complex devices to operate in a fully autonomous mode. Sometimes, to ensure the operability of such products, a sufficiently high voltage is necessary. To completely power such a device with electricity, you can do without complex structures from series-connected standard 1.5-volt elements. Industry produces compact batteries with a voltage of 12 volts.
Content
Types and sizes of 12 volt batteries
Models are used as the main 12 volt batteries 23A and 27A. Such batteries have a cylindrical shape and differ very little.
Main characteristics
| Parameter | A27 | A23 |
|---|---|---|
| View | Alkaline | Alkaline |
| Capacity mAh | 20 | 40 |
| Voltage | 12 | 12 |
| The form | Cylindrical | Cylindrical |
| Height mm | 28.2 | 28.9 |
| Diameter mm | 8 | 10.3 |
| Mass, gr | 4.4 | 8 |
| Comprises | 8 elements of LR632 | 8 elements of LR932 |
As can be seen from this comparison, the 27A source has a more compact size, due to this it can be used in small devices, for example, key fobs.
12v Battery Analogs
Analogs of batteries 23A and 27A are:
- LR23A;
- MN21;
- L1028;
- LR27A;
- MN27;
- L828.
The listed analogues also have a voltage of 12v, a cylindrical shape and sufficient power for installation in various household devices.
Where are 12 volt batteries used?
12 volt batteries are used in the following devices and devices:
- Multimeters.
- Remote controls.
- Keychains alarm.
- Medical devices.
How to get 12 volts from batteries
If there is no time to search for and purchase 12-volt batteries, but products of a different nominal value are available, then you can get the necessary potential difference in the following ways:
Via voltage converter for DC
To obtain a 12-volt power supply, DC-DC boosters can be used. For example, the U002V device allows you to get the required value from a battery of 3 volts or more. To obtain a voltage of 3v, you can use ordinary finger-type batteries in the amount of 2 pieces, which must be connected in series.
Due to serial connection
If a connect in series enough conventional batteries, you can get 12 volts without a converter device. In order to assemble a battery with a nominal voltage of 12 V from batteries, the following number of batteries will be required:
- AAA, AA, C, D - 8 pcs.
- CR2, CR123, CR2032 - 4 pcs.
- 2CR5, 4LR61 - 2 pcs.
In this way, a reliable and efficient 12 V power supply can be assembled even from inexpensive salt batteries.
Popular 12v Battery Manufacturers
In order to maximize the operation of electronic devices on a single battery, it is recommended to purchase and install a battery of well-known manufacturers. To date, the following companies are most popular with buyers:
- Energizer - is a world leader in the production of batteries. Batteries and accumulators of this company work much longer than products of other manufacturers, which is especially true when operating devices that consume a lot of electricity.
- Duracell - The products of this company have an extended service life. The manufacturer guarantees the safety of the charge for 5 years, with proper storage.
- Camelion - batteries from this manufacturer are of good quality at a relatively low cost. Due to these qualities, Camelion batteries can be successfully used in devices that consume large amounts of electricity.
- Panasonic - batteries from this manufacturer are most often used in car alarm key rings. Also, the product has an increased indicator of current strength and capacity, which allows you to power devices that consume a large amount of electricity.
- Space - products of a domestic manufacturer do not differ in quality from foreign analogues. The products of this company have very smooth characteristics of voltage reduction during operation, which allows you to use the product for a long time, without reducing the efficiency of the device.
- GP - twelve-volt batteries of this company are inexpensive, but the quality of the products is at a very decent level. Gp alkaline batteries perfectly hold the required voltage even at significant loads, while the power consumption is smooth.
- Varta - It has a high capacity. The power one p23ga model from this manufacturer has a rate of 0.05 amperes / hour. The cost of the product is slightly higher than the Gp and Cosmos batteries, but due to the fact that the production of the product used modern materials and technology, the elements are guaranteed to last a long time.
The products of any of the above manufacturers can be successfully used in devices where a 12 volt power supply is needed.
