The LR20 batteries are familiar to everyone. These batteries are barrel-shaped and familiar in size. Alkaline power sources are used in many areas, ranging from wall clocks to geysers. The battery is type D, but is often indicated without the first character. General specifications and parameters are implied.
Content
LR20 Battery Specifications
Depending on the production conditions, the technical characteristics of the device change. However, in most cases, batteries have an oblong shape, they are the most round and barrel-shaped. The weight indicated in the passports for batteries of various manufacturers ranges from 66 to 114 grams.
The diameter of this type of battery is 34.2 millimeters. The height reaches 61.5 mm. In appearance, they are thicker and higher than finger-shaped. The emf coefficient is 1.5 V.
Attention! A distinctive feature of the LR20 battery is that it has an alkaline element. While in the usual R20 salt (carbon-zinc) is present. Possible capacitance values for the model in question are from 5500 to 16000 mAh.
Production began in the late 19th century. It was thought that the battery should be energy-intensive, have a long service life. This was necessary due to the fact that electric lights appeared, and power sources for them at that time were too expensive and did not differ in high efficiency. Later, batteries found their application in portable tape recorders, loaded with electrical partings, etc.
| Parameter | Value |
|---|---|
| Basic designation | D |
| Kinds | Salt, Alkaline, Nickel Metal Hydride |
| Capacity | 8000-19500 mAh |
| Voltage | 1.5 V |
| Analogs | R20, LR20, HR20 |
| GOST, TU | 373, A373 |
| ANSI / NEDA | 13D, 13A |
| The form | Barrel |
| Height | 61.5 mm |
| Width | 34.2 mm |
Battery Analogs LR20
Batteries of the type in question are popularly called large. Their analogues in appearance and purpose are considered models with the designations: D, HR20, R20 and A373. You can replace the LR20 battery with these analogues without difficulty, since they are suitable in size and do not differ in any way.
Everything type D batteries have the same size, but varying degrees of typical capacity. In the model in question, it is high, in high-quality manufacturers it reaches 19500 mAh. In saline R20 capacity does not exceed 8000, in NiMH type HR20 up to 11500. Voltage 1.5 Volts. The voltage is the same for manganese-zinc species.
Battery Applications
Cylindrical batteries have found application in many areas. Their energy intensity is large, therefore they are used mainly where there is a high energy consumption.
Large batteries are used in power appliances. Including portable radio tape recorders, portable speakers, hand-held flashlights designed for lifeguards, cavers, gas columns and others. Also apply energy-saving options in walkie-talkies, Geiger counters. But now you can meet other devices in which they can be installed. In particular, these are children's toys (for example, large cars), drones, wall clocks and much more.
Can I charge the LR20 battery
The alkaline battery design does not allow recharging the device. After use, it must be disposed of.
Popular manufacturers and their features
Popular manufacturers of this type of battery are Energizer and Duracell. They cost a lot, but the quality is fully justified.
The Energizer D-LR20 is great for high-power household appliances.They are often used for installation in speakers, gas speakers, radios and radios. At the same time, they work at temperatures up to +55 degrees. This type of battery lasts five times longer than usual due to the use of not only an alkaline element, but also zinc and manganese.
Duracell batteries are also used in household appliances, but their main feature is the storage duration. The service life sometimes exceeds ten years. They are also used for equipment that requires the most power. They are installed on devices that work more intensively (game consoles, children's toys, portable speakers).
Demanded are batteries and other companies. They show slightly lower energy intensity indicators, can serve less, but are convenient to use and of high quality. You can buy batteries firms:
- Сamelion;
- Varta;
- Renata;
- Gp;
- Maxell
- Robiton
- Panasonic
- Alkaline.
An excellent inexpensive option for the Russians is the Cosmos battery.
What to look for when purchasing
Import brands are advertised, but they cost a lot. Buyers are thinking about choosing a barrel of good quality and performance at a modest price. It is worth noting that it is possible to understand only with certain technical knowledge. Other buyers should pay attention to reviews on the Internet.
Well-known companies often test batteries. You can not worry about the fact that the service life and energy consumption will be lower than the declared level. However, the buyer needs to pay attention to:
- given energy;
- internal resistance.
Important! Given these parameters, it is possible to calculate the unit price of the energy supplied (such an indicator is not indicated in the instructions). The lower the score, the better for the buyer.
Also, attention should be paid to power consumption. For wall clocks, ordinary flashlights, an inexpensive battery will suffice.
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