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KONNWEI KW371 6V/12V/24V Battery Tester & 4/5Pin Relay Tester 2 in 1 | battery tester automotive with cranking & charging load test, 4/5-pin relay tester, CCA 10-2000, No batteries required. - size: 7.68*3.74*2.17 inch

KONNWEI KW371 6V/12V/24V Battery Tester & 4/5Pin Relay Tester 2 in 1 | battery tester automotive with cranking & charging load test, 4/5-pin relay tester, CCA 10-2000, No batteries required. - size: 7.68*3.74*2.17 inch

$116.18 USD
$116.18 USD
Sale Sold out
Taxes included. Shipping calculated at checkout.

About this item

  • 【2-in-1 Professional Diagnostic Tool】Battery & Relay Testing - Not just a battery tester. The KONNWEI KW371 integrates an advanced 12V/24V relay tester capable of diagnosing 4-pin and 5-pin automotive relays. Quickly identifies coil failures and contact wear without disassembling the entire fuse box—a must-have for mechanics and advanced DIYers.
  • 【Wide Compatibility for 6V/12V/24V Batteries】 - Unlike testers limited to 12V, the KW371 covers 6V (Motorcycle), 12V (Car/SUV), and 24V (Truck/Boat) systems. It accurately analyzes Lead-Acid, AGM Flat/Spiral, Gel, EFB, and Lithium batteries with a 10-2000 CCA and 5-220 Ah range. Supports multiple global standards including CCA, JIS, EN, DIN, SAE, IEC, and GB.
  • 【Cranking & Charging System Analyzer】Know Your Vehicle‘s Full Health - Perform 3 in-depth tests: Battery Health (SOH, SOC, Internal Resistance, Voltage), Cranking Test (Min/Max starting voltage & milliseconds), and Charging Test (Loaded/Unloaded ripple detection). Instantly determines if the issue is a dead battery, faulty alternator, or failing starter.
  • 【User-Friendly with Clear Visual Alerts】 - Features a graphical waveform display for real-time voltage monitoring. Delivers straightforward results: Good Battery, Replace, Bad Cell, or Charge Retest. Polarity reverse protection ensures safety for beginners. Includes 18 language options (English, Spanish, French, etc.) for global usability.
  • 【Rugged & Ready for the Field】No Batteries Needed - Powered directly by the vehicle‘s battery via durable alligator clips. Supports USB connection to PC for software updates and report printing (Windows supported). Designed for mechanics, fleet managers, and RV/boat owners who demand reliable diagnostics on the go.

Overview

  • Brand: KONNWEI
  • Power Source: Corded Electric
  • Style: For Car/ Truck/ Motorcycle/ Boat/ AVT/ Yacht
  • Color: Red
  • Item Weight: 0.27 kg

Low stock: 10 left

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Reviews

  • ⭐⭐⭐⭐⭐

    Michael Turner — Chicago, Illinois

    GarageNest has a practical selection of tools and vehicle-care supplies. The items I ordered were easy to understand, useful for regular maintenance, and simple to organize in my garage. Everything fit naturally into the way I already take care of my vehicle.

  • ⭐⭐⭐⭐⭐

    Daniel Foster — Austin, Texas

    I found several useful garage essentials without having to search through unrelated products. The descriptions made it easier to compare the options, and the tools have been convenient for routine checks and small maintenance projects around the garage.

  • ⭐⭐⭐⭐⭐

    Lauren Mitchell — Denver, Colorado

    I like that the products feel practical without being overly complicated. I picked up a few items for cleaning, inspection, and basic vehicle care, and they have helped make my garage setup more organized and my maintenance routine easier to manage.

  • ⭐⭐⭐⭐⭐

    Jason Reed — Portland, Oregon

    The supplies I ordered fit well into my usual vehicle-care routine. They were straightforward to use, easy to store, and helpful for keeping frequently used tools and maintenance items ready whenever I need them.

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FAQ

What types of products does GarageNest sell?

GarageNest offers automotive maintenance tools, diagnostic equipment, battery accessories, lifting supplies, tire service tools, detailing products, garage organizers, work lights, and workshop safety essentials.

How much does shipping cost?

We generally charge a flat shipping fee of $6.90 per order. Any applicable shipping charge will be displayed at checkout before payment is completed.

How long does order processing take?

Orders are generally processed within 1–3 business days, Monday through Friday, excluding public holidays. Processing may take up to 5 business days during busy periods.

How long will delivery take?

Estimated delivery within the United States is 5–10 business days after processing. International delivery generally takes 10–20 business days. Delivery times are estimates and may vary.

How can I track my order?

Tracking information will be sent to the email address used during checkout when it becomes available. Tracking updates may take approximately 2–5 business days to appear after a shipping label is created.

Can I change or cancel my order?

Please contact us as soon as possible. Orders may be eligible for cancellation or modification within 12 hours only if processing or fulfillment has not started. Changes cannot be guaranteed.

What is your return policy?

Eligible unused and uninstalled products may generally be returned within 30 days of delivery. Products must include their original packaging, components, manuals, and accessories. Prior return authorization is required.

What should I do if my item arrives damaged, defective, or incorrect?

Contact us within 7 days of delivery and include your order number, a description of the issue, and clear photos of the product, packaging, and shipping label. Please keep all original materials until we provide instructions.

How do I know whether a product is compatible with my vehicle?

Review the product description, dimensions, part numbers, voltage requirements, installation details, and compatibility notes before ordering. Compatibility may vary by make, model, year, trim, engine, and previous vehicle modifications.

How can I contact GarageNest customer support?

Email us at livguevictfeit@gmail.com. Please include your order number when your question relates to a purchase. We generally respond within 1–2 business days, Monday through Friday.

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