9V battery

Today, 9V batteries are used in many electronic devices. This power source is produced by virtually all battery companies. 9V batteries from various manufacturers can be found on store shelves.

In this article, you'll learn which companies produce this energy source, how to charge it, the cost of the product, what it's made of, and much more!

What is a crown?

A Krona battery is a rectangular 9-volt battery with two terminals on one end. This battery was developed in the Soviet Union but remains popular today. It may be designated as a PP3.

Is Krona a battery or an accumulator?

Initially, this element was produced as a simple battery. However, as technology advanced, rechargeable batteries of the Krona type began to be produced. Therefore, there are both rechargeable Krona batteries and standard ones. When purchasing, it's a good idea to ask the seller what kind of energy source it uses. You can also ask, "How many times can it be recharged?"

Some of these power supplies already have everything written on them.

The picture shows that it can be charged up to 1,000 times. A regular battery can only be charged twice. After that, it could fail. The manufacturer does not recommend charging it.

Photo of a 9V battery

Below are 6 pictures of 9v power supply.

Well, this is exactly what a krona battery looks like.

Why is the battery called a crown?

It's difficult to answer this question precisely, but it's possible it's related to its appearance. The crown is usually the term for the top of a tree, or a coin. This may explain what the crown battery is called, or rather, where it gets its name.

The two upper poles can be compared to the upper branches of a tree. There's a similar-sounding word for "crown." Perhaps this power supply gets its name from this word, as it vaguely resembles that object.

Once upon a time in USSRThere was a company called Krona that produced similar batteries. That company has long since disappeared, but its brand has stuck. And since then, this battery has been called by that name.

The 9-volt battery is called "Krona" (PP3).

Technical characteristics of the Krona 9 batteryv

Now let's consider what parameters such an energy source has.

9 volt crown capacity

In reality battery capacityThe capacity varies quite a bit. There are cells with capacities ranging from 150 mAh to 1000 mAh. Therefore, if you need a long-lasting 9V power source, it's better to buy one with a higher capacity.

Battery sources have the following capacity:

• Ni-Cd - 150 mAh.
• Ni-MH – 170-300 mAh.
• Li-ION – 350 – 1000 mAh.

The data above may vary as progress continues. Capacity may be increased over time.

How many amps are in a 9v battery?

Here, everything depends on the type of battery and the load's resistance. If you connect a load with a resistance of 10 ohms, the current will be 0.9 amps. But if the load is 100 ohms, then the battery's current will be 0.09 ampere-hours.

In general, 900 milliamps is quite possible in the average Krona battery. As many people on other websites and forums claim, the maximum current is 10 A.

Crown power

From 150 – 1000 mAh.

How many volts are in a crown?

These batteries are typically produced at 9 volts. Some people try to find 6 volt, 5 volt, and 12 volt batteries. Unfortunately, such batteries are not manufactured. The standard voltage is 9 volts. EMFThe voltage of a 9V battery is 9V.

1.5-liter 9V battery dimensions

This power supply has the following dimensions: 48.5 × 26.5 × 17.5 mm

The weight is about 52 grams.

9V battery markings

Surely many have noticed a certain marking on a battery. The first thing that catches your eye is the attractive logo and design. Then you'll notice the battery's specifications.

Here's what the label can tell us:

1. Brand, for example, Duracell, GP, Bison, Trophy, Kamelionand others.
2. Voltage 9 volts.
3. Capacity, for example, 300 mAh.
4. The shelf life of a 9V battery is typically 5 years.
5. Type 6LR61; 6F22, etc.
6. Prohibition of throwing into the trash can.
7. Cannot be disassembled.
8. Chemical affiliation, alkaline or saline, or nickel manganese, etc.
9. Free of mercury and cadmium.

This source of energy has such signs.

GOST krona batteries

The standard for a Krona battery looks like this: 6F22; "Krona", dimensions 26.5 x 17.5 x 48.5, weight 30 grams, voltage 9 volts, capacity 190 - 250.

However, the regulatory documents website currently notes that this GOST has been cancelled. Therefore, the standards may be slightly revised.

The structure of the krona battery

Basic information on this issue can be found in the article What does a 9V battery consist of?It examines what's inside the crown in cross-section and much more.

Unlike most batteries polarityThe crown is located on one side. If you don't know where the positive and negative terminals are on the CR 9V crown, look at the picture.

How to disassemble the crown?

A Krona battery is quite easy to disassemble. All you need to do is remove the label and peel back the metal casing. Then, all the insides will be revealed. Before disassembling, arm yourself with scissors or a knife and pliers!

We'll take this beauty apart!

First, remove the label. To do this, insert a sharp object, like scissors, into any convenient place and remove the sticker.

Now let's tackle the metal case. We need to remove it. Find a gap and use scissors and pliers to remove the case.

After this, the power supply will appear before us in disassembled form.

Here's what's inside a battery. As you can see, it consists of six flattened cells connected together. Each cell contains a rod, electrolyte, and various chemical elements.

That's all for the analysis!

9V battery

We'll classify these elements by chemical composition and brand. We'll also list the digital markings they carry.

Today, the following brands of this power supply exist:

• GP
• Duracell
• Space
• Energizer or Energizer
• Trophy
• Neda 1604 9v
• Camelion
• Pleomax
• Varta
• Roboton
• Panasonic
• Toshiba

As you can see from the list, many companies are involved in the production of krona-type batteries.

According to chemical composition, the following types can be distinguished:

Alkaline crowns. Their main feature is a long service life and high price. They can withstand heavy loads.

Salt manganese zincThese power supplies were produced back in the 19th century. After some time, they were completely replaced. salineelements. The electrolyte is a solution of ammonium chloride.

Lithium iron disulfide. They have a solid positive electrode and are made of pyrite. They can operate perfectly at temperatures as low as -40 degrees Celsius.

Zinc-air. They work when zinc is oxidized by oxygen. They have a large capacity, are quite environmentally friendly.

Manganese castingThe electrode is made of manganese dioxide. After the chemical reaction is complete, lithium oxide is formed.

Lithium thionyl chlorideThey operate in extreme temperature conditions. Because of this, they are often used by the military and scientists.

Rechargeable batteries of the krona type

The main difference between these batteries and conventional ones is their ability to be recharged multiple times. Charging is accomplished through a special device.

Lithium ion or Li-IONQuite efficient batteries with high performance. CapacitySuch elements can reach 700 milliampere hours and operate best at room temperature.

Nickel-cadmium batteries Ni-Cd They have a 120 mAh battery and can be recharged up to 1000 times. They are quite inexpensive.

Metal hydride cells NI-MNCapacity 170 – 300. Safe, no metal impurities.

Li-Po. These energy sources are the latest development by scientists. They operate using pulsed conversion technology. They can be recharged by any 5-volt power source. Therefore, they can easily be recharged from a computer.

A 9V battery of the crown type may have the following markings on the case:

MX1604; MN1604; 1604A; 6LR61; 6LF22; AM6; E-Block; PP3; 9V Brick Battery; 1604; 6R61; 6F22.

Battery cell 7D-0.125 (7D-0.1, 7D-0.11).

Rating of krona batteries

Alkaline-manganese batteries are considered the best. For maximum performance, use Li-Ion batteries.

Testing 9-volt 9-cell batteries

The test involved 5 alkaline 9-volt power sources from the following companies:

1. Energizer
2. Duracell
3. GP Super
4. Panasonic
5. Varta

All batteries were purchased from the Beru.ru store. Unfortunately, the Duracell, Varta, and Energizer batteries were slightly expired. Nevertheless, we decided to test them anyway.

Here's what was used:

• Multimeter.
• Incandescent lamp.
• Special connector for crowns.
• Thin wires.
• Timer on the phone.

We'll be testing the operating time. A standard 6.3-volt incandescent lamp with a current draw of 0.3 A will be used as the load. The experiment will last 10 minutes for each Krona.

Test data

9V Krona batteries	Initial voltage (V) without load	Voltage under load after 5 minutes	Voltage after 10 minutes of operation without load	Voltage one minute before the end of the load test
Varta	9.64	7.20	7.85	6.85
Duracell	9.64	7.03	7.85	6.67
Energizer	9.66	8.10	8.85	7.78
GP Super	9.72	7.18	7.90	6.79
Panasonic	9.59	7.75	8.02	7.40

Based on the data obtained, we distribute the places as follows:

1. Energizer
2. Panasonic
3. Varta
4. GP Super
5. Duracell

As a result, the Energizer Krona can last longer than all the others. This is with a simple load, like a standard incandescent lamp. The results may differ with pulsed current consumption.

The worst power source turned out to be a battery from the popular brand Duracell. Varta and GP batteries were almost identical in discharge rate.

Crown adapter

You can make a similar terminal yourself. But if you don't have time, you can order one from any online store. Or you can go to the nearest radio store. So, that's the answer to the question of where to get a crown adapter.

The crown connector is made of tin, plastic, or leather, and wires are black and red. In some cases, a cylindrical plug may be connected to them.

Crown holder

A similar product is produced in this type:

You can buy it at any radio store, like Chip and Dip.

How to charge the crown?

In fact, charging a regular battery is dangerous. It's best to charge a battery cell of this type.

You can charge a 9-volt battery from a car's cigarette lighter. Connect the positive to the positive terminal and the negative to the negative terminal. Continue charging until the battery warms up. Afterward, disconnect the wires. Then, you can check its voltage with a tester and repeat charging.

But it's important to understand that it's impossible to fully charge such a battery. In fact, it can only be partially restored to about 30%. However, a rechargeable battery can be restored to its original condition.

Another option is to purchase a charger for the CROWN. Before resuscitating, determine the battery's charging current. To do this, divide the battery's capacity in mAh by 10. This will give you the current in milliamps. For example, if the battery has a capacity of 750 mAh, the charging current will be 75.0 milliamps per hour.

How to charge the crown through USB?

These methods will help you charge your crown at home.

You can also buy a USB adapter and solder terminals from an old 9V battery to it.

1. We remove the plate with the positive and negative poles from the 9-volt power supply.
2. We solder two wires to it.
3. Cut off one end of the USB adapter.
4. We connect the part we need to the contacts.
5. Now you can easily recharge our Krona battery from a PC or laptop.

9v battery charger for Krona

A charger for this power source is available at regular retail outlets. It looks like the one pictured below.

How long does it take to charge the crown?

Many people wonder how long it takes to charge 9V batteries. If you use a standard charger, everything is clear. A light usually indicates that the battery has been recharged.

If the NiMH battery has a capacity of 350 mAh, the charging current will then be 35 mA. To determine the charging time, simply use the formula: Charging time in hours = 1.4 times the capacity in mAh, divided by the charging current in mA.

How to check the charge of a krona battery?

After the restoration, we'll want to know how many volts are in our battery. To do this, we'll need to grab a tester and check the battery. The regulator knob should be set to 20 on the left side. Then, connect the device's probes to the positive and negative terminals. Then, look at the display. It will show the battery charge.

This battery is undercharged; its voltage is 8.7 volts. After charging, the readings will typically be greater than 9 volts. It's important to ensure you're using a rechargeable battery.

DIY Krona charger

The video below shows numerous options for making a krona charger. This will require various radio components, a printed circuit board, and some connectors. But we won't dwell on that right now. Instead, we'll offer you an option that requires minimal effort.

1. Take it chargerFrom a phone, camera, or portable speaker. Make sure it's no higher than 5 volts, and you don't actually need it. It should also have a USB port.
2. Take a plate with “+” and “-” marks from the old crown.
3. Solder the wires to the terminals.
4. Disassemble the charger.
5. Unsolder the installed port.
6. In its place, install 2 wires with already connected poles.
7. Connect the battery.
8. Plug in.

This will start the charging process.

Thus, a 9-volt rechargeable battery will feel quite satisfactory after this procedure.

How to charge a battery at home (video)

The video shows a diagram for restoring a 9v battery.

So, if you're wondering whether it's possible to recharge a battery, the answer is obvious! Of course, yes!

What can I replace the crown with?

You can replace them with regular batteries. For example, if you connect six 1.5-volt batteries in series, you'll get 9 volts. However, you might encounter the problem that such a battery won't fit into the device. In that case, simply connect two wires to the connected batteries.

There's a 9-volt converter circuit. But that requires some knowledge of electronics. Using this circuit, you can get 9 volts from a 3.6-volt phone battery. That's just what you need! Below is the diagram.

Components:

• C1 -100 μF.
• C2 – 1000 μF.
• Ferrite ring 2000 NM.
• Transistors KT 209.

More detailed information about the assembly is available here: http://radioskot.ru/blog/zamena_batarejke_krona_9v/2016-09-17-452

What can be made from the crown?

In fact, you can create a multitude of interesting things. For example, you can create a lighter, a magnet, a hiding place, a wood burner, and much more.

Now we'll demonstrate how to make a hiding place. You'll need a 12-volt battery.

Step #1.

Take a sharp knife and make a cut at the top of the battery.

Step #2.

Once the cut is made, remove the contents.

Step #3.

We'll remove four unnecessary batteries. This will leave two that will keep the system running.

Step #4.

We solder the wire to the required contact.

Step #5.

We attach the batteries to the top part using glue.

Step #6.

We place the remaining two batteries and the cover back into the case.

Step #7.

We hide everything that fits in the cache!

The battery will still work, but its voltage will only be 3 volts.

5 devices from Krona

This video shows how to make a lighter from a crown.

This video will show you how to make an electric magnet.

How to make a krona battery?

To create a similar power supply with your own hands, do the following:

1. The first thing you need to do is take measurements from the original battery.
2. Next, make a body from paper, plywood, plastic or other material.
3. After this, you can connect six 1.5-volt batteries together. These are typically AA or AAA batteries. Button cells can also be used, although the battery life will be shorter in this case.
4. Make positive and negative contacts from tin and connect them with wires.

At this point the assembled element can be used.

How much does a crown cost?

The price of this battery varies greatly. It will differ from store to store. Generally, the higher the capacity of the power source, the more expensive it is.

Approximate prices:

1. A 650 mAh krona battery will cost 600 rubles.
2. GP has a price from 60 rubles.
3. Varta Superlife from 70 rubles.
4. Space from 43 rubles.
5. Samsung Pleomax 6F22-1BL, price varies from 70 to 150 rubles.
6. Fine Power (6LR61 - KT-1151) – 85 – 160 rub.
7. Smartbuy – 45 rubles.

So, from the list above, it's clear that the price range is very wide. And 1 crown of 9V can cost a lot. If you buy 20 crowns, you might get a discount. Price information was taken from online stores.

Where is the krona battery used?

Below are the devices that require a crown battery.

1. A multimeter is a device for measuring voltage, current, resistance, capacitance, etc.
2. Electronic toys.
3. Dosimeters.
4. Some radio receivers.
5. Medical devices.
6. Tasers.
7. GPS navigators.
8. Remote controls.
9. Fire loudspeakers.
10. Alarms.
11. Construction equipment.
12. Lanterns.

Therefore, the Krona battery is very popular today. It can be purchased at almost any retail outlet.

Read also:

Battery structure