The R20 battery is a portable power source. It was one of the first batteries to be manufactured industrially. These batteries are considered to have been invented in 1898. They remain popular today.
Battery r20 and its analogues
A 100% replacement for this power supply is the LR20 battery. There are also a number of others.
List of analogues:
- Lr 20
- HR 20 is a nickel metal hydride cell.
- KR 20 – Nickel-cadmium. But their voltage is 1.2 volts.
- ER 20 – cast.
- Li-SOCl2 ER34615 – lithium thionyl chloride.
- d r20be
Thus, the P20 battery has quite a large number of similar ones!
Battery characteristics r20
Type: D, according to the ICO standard it is designated as R20, GOST from ANSI gave the name 13D, standard USSR called her 373The electrodes are located at the ends of the cylindrical cup.
Shape: Cylindrical
Voltage: 1.2 – 1.5 volts.
Capacity: 4000 milliamperes per hour.
Dimensions: The anode is 9.5 mm in diameter and 1.5 mm in height. These dimensions may vary slightly depending on the manufacturer. The cathode is 18 mm in diameter. The battery itself is 61.5 mm in height and 34 mm in diameter.
Operable at temperatures from 0 to +40 degrees Celsius.
Weight: 66 grams.
The shelf life is up to 2 years
Can be stored for 2.5 years before use.
Most commonly used for low and medium power devices.
These batteries are either zinc-carbon or zinc-salt batteries. This means they are inexpensive and have poor performance characteristics. These energy sources typically stop working at sub-zero temperatures.
Where are d r20 batteries used?
Our industry produces a large number of devices that require these elements.
Application area:
- Musical equipment such as music centers, tape recorders, etc.
- Geiger counter for measuring radiation.
- Some types of radio receivers.
- Analog type voltmeters.
- Gas water heaters.
- For starting electrical units.
- Lanterns.
- Radio stations.
- Toys.
- Medical devices.
- Military equipment.
- Watch.
- Remote controls.
Due to its large size, the electrochemical reaction in this battery takes longer than in the same finger elementsThis allows you to work for a long time.
Do d r20 batteries charge?
These batteries cannot be reused multiple times because they are not rechargeable batteries. Therefore, they should never be recharged. The only thing that can be done to restore their charge is to warm them up slightly.
It is advisable to do the following:
- Boil water in a kettle.
- Pour it into a glass so that its height does not reach the positive level of the battery.
- Place the battery in this hot water for 15–30 minutes.
When pouring water, keep in mind that when our element is immersed, the water level will rise.
This will increase the voltage slightly. This procedure will extend the battery's life, but unfortunately, not by much.
LR20 battery manufacturers
Almost all companies involved in battery production produce similar power sources. Below is a list of the main and most popular manufacturers.
Photo of a R20 battery
Below are images of similar power elements, among them there are Panasonic r20, space, Kodakand many others.
A few tips before buying an LR20
- Check the expiration date. Determine how much time has passed since production. If it's several years old, it's best to hold off on purchasing.
- The LR20 case should be free of any scratches or damage. Check the packaging for integrity.
- To avoid counterfeits, pay attention to the labeling. If it's crooked or contains errors, it's clearly a low-quality product. Such batteries may also have poor packaging.
As a result of all the above, the R20 battery is in demand and has decent performance. Furthermore, similar batteries are easily found.
