KONNWEI KW520 Lead Acid Car Battery Pulse Repair Tool with Alternator Tester
Meet the KONNWEI KW520, a compact, professional 3-in-1 battery tool engineered for both 12V and 24V automotive systems. This all-in-one device combines a high-precision battery tester, a pulse repair function, a desulfator/flow charger, and an alternator/charging system tester. It’s designed to diagnose, repair, and maintain a wide range of lead-acid batteries—including ordinary lead-acid, AGM flat plate, AGM spiral, and GEL batteries—so you can solve common battery problems without juggling multiple tools. A clear 2.4-inch LCD displays results in real time, with text and graph outputs that are easy to read even in bright daylight. With a testing range up to 2000 CCA and safe operation features, KW520 helps you pinpoint issues quickly, extend battery life, and reduce roadside or workshop downtime.
Benefits & Tips
- Consolidates three essential battery tasks in one unit — health check, charging/maintenance, and pulse repair — saving time and diagnostic costs.
- Accurately assess battery health and aging by measuring voltage, internal resistance, cold-cranking amps, and AH capacity. Use the pulse repair function to refresh sulfated batteries and improve performance could be verified by subsequent KW520 testing.
- Ideal for DIYers and professionals who service 12V/24V vehicles, fleets, or caravans. The multilingual interface and clear display support quick setup and reliable results in any workshop or roadside scenario.
Product specifications
- Item Type: 3-in-1 car battery tester, repair charger
- Voltage / current: 12V 10A / 24V 5A output
- Charging capacity range: 4Ah–100Ah
- Supported battery types: Ordinary lead-acid, AGM flat plate, AGM spiral, GEL
- Testing range: 100–2000 CCA (high-accuracy battery tester)
- Functions: One-click repair activation, charging system test, battery test, record & review battery data, pulse repair, flow charger and desulfurizer
- Protections: 5 protections from AC to DC charging, including over-heat and over-current protection
- Display: 2.4-inch LCD, readable in bright conditions
- Languages: English, Russian, French, German, Italian, Spanish, Portuguese, Dutch
- Origin: Mainland China
Package includes:
- KW520 main unit with 12V/24V testing, pulse repair, desulfurizer flow charger, and alternator testing capabilities
Warnings / reminders
For use with lead-acid battery systems (including AGM and GEL). Follow the user manual for proper connection, polarity, and safety procedures. Do not use on damaged or leaking batteries. Use the device only within the specified voltage range (12V/24V) and in a dry environment. Disconnect and remove power before any vehicle maintenance beyond testing.
Language support
Languages supported: English, Russian, French, German, Italian, Spanish, Portuguese, Dutch.
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