Battery Testers

Konnwei Digital Battery Tester with Crocodile Clips KW-520

Battery Tester Konnwei KW520

The Konnwei KW520 is an advanced multifunctional device that uses the most modern technology so you can easily and quickly measure the actual cold-start capacity, battery...

Battery Tester Konnwei KW520

The Konnwei KW520 is an advanced multifunctional device that uses the most modern technology so you can easily and quickly measure the actual cold-start capacity, battery condition, as well as common faults in the vehicle's starting and charging system.

It is particularly useful in car workshops, as it can accurately show the...

See full description See full description

Description

Description

Battery Tester Konnwei KW520

The Konnwei KW520 is an advanced multifunctional device that uses the most modern technology so you can easily and quickly measure the actual cold-start capacity, battery condition, as well as common faults in the vehicle's starting and charging system.

It is particularly useful in car workshops, as it can accurately show the problem, thus allowing quick repair of the vehicle.

With the charger function, it can charge 12 V lead-acid car starter batteries with a capacity from 4 AH to 150 AH, including common lead-acid, flat AGM, spiral AGM, gel, and lithium-iron-phosphate (LiFeP04) batteries.

The KW520 also features a battery repair function to restore lost performance through the application of pulse voltage and current with a specific frequency.

  • Measured voltage range: 12 - 24 V
  • 3-stage automatic charging
  • Overcharge protection
  • Incorrect connection protection
  • Short-circuit protection
  • Overheat protection
  • Fan cooling
  • Input: 100 - 240 V / 50 – 60 Hz
  • Output: 12; 24 V DC / 5 – 10 A
  • Minimum voltage: 2 V (for the tester), 5 V (for charging)
  • Battery range: 4 – 150 Ah
  • Thermal protection: 65°C ±5°C
  • Dimensions: 15.5 x 9.5 x 6 cm
  • Interface language: English, French, German, Dutch, Spanish, Russian, Portuguese, Italian

Manufacturer

See full description

Specifications

Specifications

Specifications

Type
with Crocodile Clips
Digital
Yes
Operating Voltage
12V, 24V
AGM / EFB
Yes

Connectivity

Bluetooth
No

Important information

Specifications are collected from official manufacturer websites. Please verify the specifications before proceeding with your final purchase. If you notice any problem you can report it here.

See all specifications

Reviews (7)

Reviews

  1. 5
  2. 4 stars
    0
  3. 3 stars
    0
  4. 2 stars
    0
  5. 2
Review this product

Reviews photos

Reviews photos
Reviews photos
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Reviews by our members

  • freename1964
    1
    3 out of 3 members found this review helpful

    I have owned it since May 2023 and therefore I think my review will avoid the excitement of a new purchase, which often does not identify potential problems.
    It was bought for a Yaris, which I take out of the garage only a few times a year, less than the fingers on our hands.
    Before this, I did my job with a classic charger with a transformer bought many years ago from a well-known supermarket chain.
    What impressed me from the first times I used it was that charging always started by showing me that the battery was at 80%.
    It took me fifteen days to get it to 80%.
    It took me a month to get it to 80%.
    It took me fifty days to get it to 80%.
    Also, charging finished in a short period of time, less than 45 minutes.
    Anyway, I didn't pay attention and that's how it rendered the car's original battery useless.
    I put in a new battery last April 2024, last week I had put it on to charge, so I go to take it off yesterday and I say it's been a week on, let's see if it needs a bit more (because as soon as charging is finished, it is supposed to stop).
    No matter how many times I tried, it gave an error and the red LED lit up.
    Fortunately, I had a battery tester that can check the battery's condition and the alternator's operation, and I found that the battery was empty and its voltage had dropped to 11.6 volts.
    So since yesterday, my old good charger with the transformer and the little device with the needle, which has served me well for many, many years, is back in use.
    The next day, the battery was fully charged and its voltage was 13.1 volts.
    Another product from our Chinese friends that never worked properly and will simply end up in a closet.

    Translated from Greek ·
    Did you find this review helpful?
  • Κ. ΣΟΥΛΗΣ
    5
    1 out of 1 members found this review helpful

    Verified purchase

    A reliable tester for the condition of various types of batteries (including lithium) as well as the charging circuit. It offers a maintenance option as well as charging up to 10A/12V.
    Quality construction, fast results. My only objection is the absence of a Greek manual.
    At the price of €36 that I managed to get it, it was THE opportunity!

    Translated from Greek ·
    Did you find this review helpful?
  • Maybe the machine was defective

    Translated from Greek ·
    Did you find this review helpful?
  • very good machine

    Translated from Greek ·
    Did you find this review helpful?
  • Verified purchase

  • Verified purchase

  • I have owned it since May 2023 and therefore I think my review will avoid the excitement of a new purchase, which often does not identify potential problems.
    It was bought for a Yaris, which I take out of the garage only a few times a year, less than the fingers on our hands.
    Before this, I did my job with a classic charger with a transformer bought many years ago from a well-known supermarket chain.
    What impressed me from the first times I used it was that charging always started by showing me that the battery was at 80%.
    It took me fifteen days to get it to 80%.
    It took me a month to get it to 80%.
    It took me fifty days to get it to 80%.
    Also, charging finished in a short period of time, less than 45 minutes.
    Anyway, I didn't pay attention and that's how it rendered the car's original battery useless.
    I put in a new battery last April 2024, last week I had put it on to charge, so I go to take it off yesterday and I say it's been a week on, let's see if it needs a bit more (because as soon as charging is finished, it is supposed to stop).
    No matter how many times I tried, it gave an error and the red LED lit up.
    Fortunately, I had a battery tester that can check the battery's condition and the alternator's operation, and I found that the battery was empty and its voltage had dropped to 11.6 volts.
    So since yesterday, my old good charger with the transformer and the little device with the needle, which has served me well for many, many years, is back in use.
    The next day, the battery was fully charged and its voltage was 13.1 volts.
    Another product from our Chinese friends that never worked properly and will simply end up in a closet.

    Translated from Greek ·
    3
  • A reliable tester for the condition of various types of batteries (including lithium) as well as the charging circuit. It offers a maintenance option as well as charging up to 10A/12V.
    Quality construction, fast results. My only objection is the absence of a Greek manual.
    At the price of €36 that I managed to get it, it was THE opportunity!

    Translated from Greek ·
    1
  • Maybe the machine was defective

    Translated from Greek ·
    0
  • very good machine

    Translated from Greek ·
    0
  • 0
  • See all

Description & Specifications

Battery Tester Konnwei KW520

The Konnwei KW520 is an advanced multifunctional device that uses the most modern technology so you can easily and quickly measure the actual cold-start capacity, battery condition, as well as common faults in the vehicle's starting and charging system.

It is particularly useful in car workshops, as it can accurately show the problem, thus allowing quick repair of the vehicle.

With the charger function, it can charge 12 V lead-acid car starter batteries with a capacity from 4 AH to 150 AH, including common lead-acid, flat AGM, spiral AGM, gel, and lithium-iron-phosphate (LiFeP04) batteries.

The KW520 also features a battery repair function to restore lost performance through the application of pulse voltage and current with a specific frequency.

  • Measured voltage range: 12 - 24 V
  • 3-stage automatic charging
  • Overcharge protection
  • Incorrect connection protection
  • Short-circuit protection
  • Overheat protection
  • Fan cooling
  • Input: 100 - 240 V / 50 – 60 Hz
  • Output: 12; 24 V DC / 5 – 10 A
  • Minimum voltage: 2 V (for the tester), 5 V (for charging)
  • Battery range: 4 – 150 Ah
  • Thermal protection: 65°C ±5°C
  • Dimensions: 15.5 x 9.5 x 6 cm
  • Interface language: English, French, German, Dutch, Spanish, Russian, Portuguese, Italian

Manufacturer

Specifications

Type
with Crocodile Clips
Digital
Yes
Operating Voltage
12V, 24V
AGM / EFB
Yes

Connectivity

Bluetooth
No

Important information

Specifications are collected from official manufacturer websites. Please verify the specifications before proceeding with your final purchase. If you notice any problem you can report it here.

Reviews (7)

  1. 5
  2. 4 stars
    0
  3. 3 stars
    0
  4. 2 stars
    0
  5. 2
Review this product

Reviews photos

Reviews photos
Reviews photos
Reviews photos

Reviews by our members

  • freename1964
    1
    3 out of 3 members found this review helpful

    I have owned it since May 2023 and therefore I think my review will avoid the excitement of a new purchase, which often does not identify potential problems.
    It was bought for a Yaris, which I take out of the garage only a few times a year, less than the fingers on our hands.
    Before this, I did my job with a classic charger with a transformer bought many years ago from a well-known supermarket chain.
    What impressed me from the first times I used it was that charging always started by showing me that the battery was at 80%.
    It took me fifteen days to get it to 80%.
    It took me a month to get it to 80%.
    It took me fifty days to get it to 80%.
    Also, charging finished in a short period of time, less than 45 minutes.
    Anyway, I didn't pay attention and that's how it rendered the car's original battery useless.
    I put in a new battery last April 2024, last week I had put it on to charge, so I go to take it off yesterday and I say it's been a week on, let's see if it needs a bit more (because as soon as charging is finished, it is supposed to stop).
    No matter how many times I tried, it gave an error and the red LED lit up.
    Fortunately, I had a battery tester that can check the battery's condition and the alternator's operation, and I found that the battery was empty and its voltage had dropped to 11.6 volts.
    So since yesterday, my old good charger with the transformer and the little device with the needle, which has served me well for many, many years, is back in use.
    The next day, the battery was fully charged and its voltage was 13.1 volts.
    Another product from our Chinese friends that never worked properly and will simply end up in a closet.

    Translated from Greek ·
    Did you find this review helpful?
  • Κ. ΣΟΥΛΗΣ
    5
    1 out of 1 members found this review helpful

    Verified purchase

    A reliable tester for the condition of various types of batteries (including lithium) as well as the charging circuit. It offers a maintenance option as well as charging up to 10A/12V.
    Quality construction, fast results. My only objection is the absence of a Greek manual.
    At the price of €36 that I managed to get it, it was THE opportunity!

    Translated from Greek ·
    Did you find this review helpful?
  • Maybe the machine was defective

    Translated from Greek ·
    Did you find this review helpful?
  • very good machine

    Translated from Greek ·
    Did you find this review helpful?
  • Verified purchase

  • Verified purchase

  • I have owned it since May 2023 and therefore I think my review will avoid the excitement of a new purchase, which often does not identify potential problems.
    It was bought for a Yaris, which I take out of the garage only a few times a year, less than the fingers on our hands.
    Before this, I did my job with a classic charger with a transformer bought many years ago from a well-known supermarket chain.
    What impressed me from the first times I used it was that charging always started by showing me that the battery was at 80%.
    It took me fifteen days to get it to 80%.
    It took me a month to get it to 80%.
    It took me fifty days to get it to 80%.
    Also, charging finished in a short period of time, less than 45 minutes.
    Anyway, I didn't pay attention and that's how it rendered the car's original battery useless.
    I put in a new battery last April 2024, last week I had put it on to charge, so I go to take it off yesterday and I say it's been a week on, let's see if it needs a bit more (because as soon as charging is finished, it is supposed to stop).
    No matter how many times I tried, it gave an error and the red LED lit up.
    Fortunately, I had a battery tester that can check the battery's condition and the alternator's operation, and I found that the battery was empty and its voltage had dropped to 11.6 volts.
    So since yesterday, my old good charger with the transformer and the little device with the needle, which has served me well for many, many years, is back in use.
    The next day, the battery was fully charged and its voltage was 13.1 volts.
    Another product from our Chinese friends that never worked properly and will simply end up in a closet.

    Translated from Greek ·
    3
  • A reliable tester for the condition of various types of batteries (including lithium) as well as the charging circuit. It offers a maintenance option as well as charging up to 10A/12V.
    Quality construction, fast results. My only objection is the absence of a Greek manual.
    At the price of €36 that I managed to get it, it was THE opportunity!

    Translated from Greek ·
    1
  • Maybe the machine was defective

    Translated from Greek ·
    0
  • very good machine

    Translated from Greek ·
    0
  • 0
  • See all
45,00 €
14,00 €   shipping cost