Konnwei Kw371 2 In 1 Car Battery And Relay Tester For 6V 12V 24V

Stop guessing why your engine won't crank or which circuit stays dark. The Konnwei KW371 merges a universal battery analyzer with a precision relay checker into one hand-held solution. You gain immediate insights into 6V, 12V, and 24V health with conductance testing that reveals actual cold cranking amps and battery condition. The clear graphic screen guides you through bad-cell detection and system faults without technical jargon.

When wiring puzzles persist, switch to the integrated relay mode. This function tests 4-pin and 5-pin automotive relays off the vehicle, cycling them to catch intermittent coil breaks and contact resistance. The tool draws power directly from the vehicle battery, so you never need spares to diagnose stubborn electrical gremlins. Reliable pass/fail alerts from LEDs and buzzers speed up swap decisions.

Get more out of your KW371 with these tips:

• Firm Grip Matters: After attaching clamps, wiggle them gently to ensure perfect contact before starting a test sequence.
• Tight Access Made Easy: Use the supplied adapter to clip leads directly onto relay pins, saving time when socket terminals are hard to reach.
• Deep Discharge Recovery: If a lead acid battery appears dead, the KW371 can still assess its state to see if a recharge saves it.

Product specifications

• Voltage Coverage: Evaluates 6V, 12V, and 24V systems for cars, trucks, boats, and heavy machinery.
• Battery Compatibility: Supports Standard, AGM Flat Plate, AGM Spiral, EFB, GEL, and Lithium chemistries.
• Cold Cranking Range: Measures 10–2000CCA and 5–220Ah across international CCA, JIS, EN, DIN, SAE, IEC, and GB standards.
• Relay Diagnostics: Checks coil integrity and switch loading conditions with automatic consistency tracking.
• Safety Protections: Built-in polarity misconnection guard prevents damage from reversed leads.

Package includes

• Konnwei KW371 Battery and Relay Tester
• Alligator Test Leads
• Relay Adapter Connector

Usage reminders

• Vehicle Prep: Disconnect all loads and remove the key from ignition when testing on the vehicle.
• Measurement Accuracy: Always connect to the main battery terminals first, as measuring at jumper ports may yield slightly lower values.

Language support

The interface adapts to your local setting, offering 19 languages including English, German, French, Spanish, Chinese, Japanese, Korean, Russian, Italian, Portuguese, Dutch, Polish, Thai, Malay, Turkish, Filipino, Vietnamese, and Indonesian.

All electronic and mechanical equipment, devices and machines sold by InterCyprus to EU countries are CE certified and carry a two year warranty. Rest easy with every order, as InterCyprus stands behind reliable hardware and seamless support through its established store at intercyprus.com.