12V/24V Automatic Tester & Charger

The KONNWEI KW520 12V/24V Automatic Tester & Charger is a professional-grade 3-in-1 tool designed for comprehensive battery care. This advanced device functions as a battery tester, charger, and pulse repair tool, making it the perfect solution for car, truck, motorcycle, marine, and deep-cycle battery maintenance. With support for both 12V and 24V systems, the 12V/24V Automatic Tester & Charger delivers up to 10A for 12V batteries and 5A for 24V batteries, ensuring fast and efficient charging for a wide range of vehicles.

The 12V/24V Automatic Tester & Charger features a large color LCD display and intuitive button controls, providing clear, real-time feedback on battery health, charge status, and repair progress. Its intelligent testing capabilities analyze battery voltage, internal resistance, and cold cranking amps (CCA), while also running cranking and charging system tests to give you a complete picture of your battery’s condition.

With fully automatic operation, the KONNWEI KW520 can charge batteries as low as 2V and utilizes pulse repair technology to revive sulfated and stratified batteries, extending their lifespan and performance. The device is compatible with all 12V/24V lead-acid batteries, including regular flooded, AGM, gel, and lithium batteries, making it a versatile tool for any garage or workshop.

Safety is paramount, with multiple protection features including short circuit, overcurrent, overheat, fireproof material, low pressure, overpressure, mislink, and electrification protection. The 12V/24V Automatic Tester & Charger also supports multilingual operation and comes with a user manual and all necessary accessories for immediate use.

For installation guides, technical support, and compatible accessories, visit our Battery Charger Installation Guide and Battery Accessories Collection. Explore more smart charging solutions in our Battery Charger Range.

Easy 3 Steps, Get your battery like brand NEW

KONNWEI KW520 Battery Tester Function: Accurate Battery Tester

Has your battery running for years but no idea about its status?
KW520 12V& 24V battery tester provides you an overall analysis of battery health by checking its voltage charge, internal resistance then tells you whether the battery needs to be recharged or not.

1.System voltage 12 and 24 Voltage test, give you results about the Status of Charge(SOC) and Status of Health (SOH)

2.Test Result Summary Good, Recharge or Replace

3.Capacity Cold Cranking Amps (CCA), DIN, EN and IEC information relative to battery rating.
Internal resistance value (mΩ) and Life in percentage (%) SOH

4.Cranking system test
Test and analyze the starting motor. Testing the actual required cranking current and cranking voltage of the starting motor is helpful to determine whether the starting motor works properly or not.

5. Charging system test
Check and analyze the vehicle battery charging system, including generator, rectifier, rectifier diode, etc., thus to find out whether the output voltage of the generator is normal, the rectifier diode works properly and the abnormals.

6. Record and Review battery data.

7. The major battery standards CA,CCA,BCL,MCA,JIS,SAE,EN,DIN and IEC are supported.

8.Test all automotive cranking lead acid battery, include ordinary lead acid battery,AGM flat plate battery,AGM spiral battery,and Gel battery, Lithium battery etc.

Cover 9 Measure Standards:

1.CCA:100-2000
2.BCI:100-2000
3.CA:100-2000
4.MCA:100-2000
5.JIS:26A17-24SH52
6.DIN:100-1400
7.IEC:100-1400
8.EN:100-2000
9.SAE:100-2000

KONNWEI KW520 support one-click repair activating battery

Through a certain frequency of pulsed current and voltage, it detects Anchi’s battery sulfation and acid stratification, and performs pulse repair on the battery to improve battery life and performance.

KONNWEI KW520 support charge 12V&24V Lead-acid and lithium batteries

1.100% fireproof material production, safer
2.Fast charging , support 12V 10A and 24v 5A
3.Large LCD clearer display screen
4.Automatic detection of ambient temperature, so that winter is plentiful, summer is not plentiful.

MULTIPLE PROTECTION
Short circuit / Overcurrent protection / Overheat protection / Fireproof material / Low pressure protection / Overpressure protection / Mislink protection / Electrification protection the charger will automatically turn off the power supply to protect the battery and charger.

FITS FOR MOST 12V /24V Batteries

Designed for testing and charging 12-volt & 24-volt lead-acid automotive, marine, and deep-cycle batteries, including flooded, gel, AGM, Lithium and maintenance-free.
Compatible with all types of vehicles – charge and maintain cars, motorcycles, lawn mowers, ATVs, lawn tractors, trucks, SUVs, boats, PWCs, classic cars, and more.

Battery charger specification:

AC input： 100-240V/50-60Hz
Output Voltage: 12V
Output Current: 12V10A /24V 5A
Output Volt No Load： 13.8V
Minimum Start Volt： Test ≥ 2.0V , Charge ≥5.0
Input Power with Load： Max 150W
Input Power No Load： 5W
Cooling： Fan
Charging Capacity Range ：4AH-100AH
Temperature Compensation： Yes, Winter & Summer Mode
Compatible Battery Type： All types of Lead-acid batteries

Battery charge and repair operation:

Support Languages:

English,Russian,French,German,Italian,Spanish,Portuguese,Dutch.

Software display

Package list:

*KONNWEI KW520 battery test & charger & repair tool.
*charge cable
*user manual
*retail box