How to identify the authenticity of Nanfu battery, how to see what number Nanfu battery is

1.**The production date on the bottom of the battery is made up of dots one by one, and the date of manufacture of a fake is a complete print, not made up of dots.

2.The negative metal bowl of the battery is **slightly raised**, and the non-protruding is fake.

3.The fonts "Nanfu" and "Nanfu" on the battery packaging are pure white for **, and dark for fakes.

4.The white "Thunderbolt" strip in the middle of the real Nanfu battery has serrations, and the fake does not have serrations.

5.The fonts "Nanfu" and "Nanfu" on the battery packaging are pure white for **, and dark for fakes.

6.If there are words "2001-05 mercury-free" (or "2001-03 mercury-free") on the negative electrode of No. 5 (or No. 7) battery, it must be a fake Nanfu battery, because from March 2001 (including March), the words "mercury-free alkaline battery" are only marked on the side of Nanfu battery, not the negative electrode.

7.The sentence "if the appliance is not used for a long time" on the precautions of the No. 7 Nanfu battery has been changed to "the electrical appliance is not used for a long time".

8.Look at the "Gathering Ring". The fake ones are all pasted with a plastic ring, and even fall off as soon as you pick them, which is very rough, and the edges are uneven, and the first one is integrated with the battery, which is the most obvious and easiest way to grasp the difference.

Others, of course, can also be identified by the quality of the packaging box, the printing font.

9.The genuine battery cell shell will have a batch number for detection, which is also a dot matrix machine, and each batch will be different, while the material of the shell of the counterfeit product is relatively dull and shiny, and there is no such batch number.

Most of Nanfu batteries are alkaline batteries, and the letter L needs to be added in front of the national standard model. Commonly used battery models are No. 1, No. 2, No. 5 and No. 7. To distinguish which size battery it is, you can judge it from the model number marked on the battery case:

No. 1 battery, the national standard model of bridge collapse is R20 LR20, the English code is D, the diameter is, the height is, and the D-type battery can be found in civilian, military, and special DC power supplies.

No. 2 battery, the national standard model is R14 LR14, the English code is C, diameter; Height.

No. 5 battery, the national standard model is R6 LR6, the English code is AA, the diameter is ; Height.

No. 7 battery, the national standard model is R03 LR03, the English code is AAA, the diameter is diameter; Height.

1. Look at the insulating sticker.

Compare the two together, **Nanfu battery's travel blind bag sticker is golden in color, beautiful and atmospheric, while the fake is earthy yellow.

2. Look at the negative electrode "Nanfu" sign.

**The word "Nanfu" on the Nanfu battery is laser-etched, smooth and flat, while the edges of the fake font are rough and uneven, deep and uneven.

3. Production batch number identification.

**The production batch number of the battery is machine-typed, and the font is composed of dot matrix, while the batch number of the fake is printed on insulating paper.

4. Look at the positive and negative poles of the battery.

**The positive and negative electrodes of Nanfu batteries are two concentric cylinders, while the bottom layer of fake Nanfu batteries is slightly higher, and the diameter is smaller than **.

5. a gathering ring.

Real and fake Nanfu batteries have shaped rings, but the fake shaped rings are just plastic covered on them, and they can be removed by hand. **The energy ring on the Nanfu battery is integrated with the battery itself, which can be known by touching it by hand.

6. an exhaust hole.

Tear off the battery wrapper, the exhaust hole of the real cell shell is oval, but the exhaust hole of the fake Nanfu battery is round.

7. Sealing ring explosion-proof gate.

The genuine seal ring explosion gate is brand new and can be explosion-proof. But the counterfeit sealing ring explosion-proof gate is old and not explosion-proof.

Summary. How to tell if Nanfu battery has electricity.

Hello, dear <>

1. Find a thin copper wire, touch the positive and negative poles of the dry battery, sparks indicate that the dry battery has electricity, and no sparks indicate that there is no electricity.

2. Use a multimeter to measure the voltage of the dry battery, indicating that it is fully charged, and the following indicates that there is no electricity.

3. Measure the specific gravity of the electrolyte with an electric hydrometer, and the floating indicates that it is fully charged, and the following indicates that there is no electricity.

A dry cell battery is a voltaic battery that uses an absorbent, such as wood chips or gelatin, to make the contents a paste that does not spill. It is often used as a power supply for flashlights, lighting, radios, etc. After years of development, China's dry battery technology has made breakthroughs in its specific energy, cycle life, high and low temperature adaptability and other issues.

According to the Zhiyan Data Research Center, China is gradually narrowing the gap with the international leading technology, reaching the international level in some core technologies, and increasingly entering the international market.

How to tell if Nanfu battery has electricity.

How to judge whether Nanfu battery has electricity Hello, pro <>

1. Find a thin copper wire, touch the positive and negative poles of the dry battery, sparks indicate that the dry battery has electricity, and no sparks indicate that there is no electricity. 2. Use a multimeter to measure the voltage of the dry battery, indicating that it is fully charged, and the following indicates that there is no electricity. 3. Measure the specific gravity of the electrolyte with an electric hydrometer, and the floating indicates that it is fully charged, and the following indicates that there is no electricity.

A dry cell battery is a voltaic battery that uses an absorbent, such as wood chips or gelatin, to make the contents a paste that does not spill. It is often used as a power supply for flashlights, lighting, radios, etc. After years of development, China's dry battery technology has made breakthroughs in its specific energy, cycle life, high and low temperature adaptability and other issues.

According to the Zhiyan Data Research Center, China is gradually narrowing the gap with the international leading technology, reaching the international level in some core technologies, and increasingly entering the international market.

Hello, dear <>

Thank you for your patience, the answer has been found for you, please check it out, thank you! <>

The method of distinguishing the authenticity of Nanfu batteries is as follows:

1. A positive electrode

Although the counterfeit Nanfu is relatively well imitated from the packaging to the battery, the fake is a fake after all, and there are still many loopholes in careful identification. First of all, judging from the positive electrode of the battery, the yellow of the top insulation sticker of the genuine Nanfu is close to golden yellow, while the fake is earthy yellow, and the width that extends to the inner ring is also larger.

The positive electrode of the real and fake Nanfu is two concentric cylinders on the upper and lower sides, but the bottom layer of the fake is slightly higher, and the diameter is smaller than the real one. Another notable feature is that the insulating sticker of ** will have crescent-shaped folds, on the contrary, the fake is very smooth.

2. Negative electrode

There is a significant difference between the negative electrode of the real and false Nanfu batteries, and the key is that the laser etching technology used in the word "Nanfu" is not available in fakes. Let's take a closer look at the first ruler, the bottom is made of precision forging technology, the bottom is smooth, there are no artificial grinding traces, and the word "Nanfu" is laser-etched, the handwriting is very shallow, the edges are smooth, and there is no roughness.

On the other hand, there are obvious grinding marks on the negative electrode plane, and the direction of the traces is the same, it is estimated that the shell process of the counterfeit workshop is too poor to ensure the surface flatness, so it must be polished. And the most important point is that the counterfeit workshop is still similar to the process of "stamping", the obvious edge of the font is rough and uneven, the depth is different, and the handwriting is obviously deeper than the laser etching.

Moreover, this process makes the surface of the negative electrode unevenly stressed, and the surface will be randomly concave with the direction of the handwriting, destroying the flatness.

Both genuine and counterfeit Nanfu are not completely sealed steel shells, and there are air holes in the negative electrodes to prevent the danger of accidental charging. The stomata of the genuine and counterfeit Nanfu are two symmetrical, but the shape, area and distribution angle of the stomata are different.

3. Production batch number

The production batch number of the real Nanfu near the negative electrode is machine-typed, and the font is composed of dot matrix, because the batch number is different every month, and these are typed after the final quality inspection of the product. The batch number of the counterfeit product is obviously on the surface insulation sticker when it is printed, and the printing method is adopted, which directly saves the process of passing the inspection and marking the batch number.

4. Test batch number

Tear off the battery wrapper, the genuine cell shell will have a detection batch number, which is also a dot matrix machine, and each batch will be different, while the material of the counterfeit product shell is relatively dull and shiny, and there is no such batch number. Of course, this method is only an identification method that has been purchased in the battery, and it is not enviable.

5. International marking

On the surface sticker of the battery, we can also find some details that are different from the real and fake, the warranty period under the mercury-free alkaline battery with white letters on a green background, and the national standard number that the product complies with. The counterfeit battery is still using the older GB T7112 1998, and the new version of the genuine Nanfu has long been changed to GB8897.

In addition, the difference between counterfeit and genuine products in the size and compactness of this line of white rock high-color fonts is more obvious, and the accuracy of genuine printing is also better. This is not enough, basically, as long as the counterfeit battery is replaced, a batch of stickers will be changed immediately, and it is not absolute.

It is so simple to distinguish between real and fake Nanfu batteries, and I am no longer afraid of being pitted and increase my knowledge.

1. Positive and negative electrodes: identify Nanfu batteries.

The second way to see if it is a fake is to look at the positive and negative poles of the battery. **Nanfu battery positive and negative electrodes are two concentric cylinders, while the bottom layer of the fake Nanfu battery is slightly higher, and the diameter should be smaller than **.

2. Observation lettering: Whether it is a Nanfu battery or a fake or shoddy product, the bottom of the battery will be engraved with the word Nanfu. **The bottom uses laser etching technology, which is very beautiful.

Fakes are often engraved with poles, not only with deep handwriting, but also with extremely polished marks.

3. Production batch number

**The production batch number of Nanfu battery is marked by the machine, while the production batch number of fake Nanfu battery is printed on the insulating sticker. In addition, it should be emphasized that the insulating stickers of the real Nanfu battery are uneven and wrinkled, but the insulating stickers of the fake are very obedient and have a smooth appearance.