Konnwei KW218 6V & 12V Digital Car Battery Tester

100-2000 CCA Battery Health, Cranking & Charging Analyzer with Color Screen & Waveforms

4.7 3 reviews 12 sold in the last 24 hours
Rs. 2,899.00 Rs. 8,000.00

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Product Highlights

  • 6V & 12V Diagnostic Range: Tests 6V motorcycle and 12V car, SUV, truck, and boat batteries.
  • 100-2000 CCA Capacity: Evaluates battery Cold Cranking Amps across all international rating standards.
  • Cranking & Charging Tests: Checks starter motor voltage drop and alternator charging output.
  • Color LCD & Waveform Display: Graphs real-time voltage waveforms on a 2.4-inch color display.

Got questions?

FREQUENTLY ASKED QUESTIONS

Quick answers to common questions about fitment, installation, and product use.

Can I test the battery while it is still installed inside the vehicle?
Yes, the KW218 supports both in-vehicle testing (connected to battery posts) and out-of-vehicle bench testing.
What battery types are compatible with the KW218?
It tests regular flooded lead-acid, AGM flat plate, AGM spiral, GEL, and EFB batteries.
Does this tool require internal batteries to operate?
No, it draws power directly from the 6V or 12V battery under test.

Product Details

Description

Konnwei KW218 6V & 12V Digital Car Battery Tester

Analyze battery health and electrical charging systems with the Konnwei KW218 6V & 12V Digital Car Battery Tester. Engineered for 6-volt and 12-volt lead-acid, AGM, GEL, and EFB batteries, this handheld diagnostic tool measures Cold Cranking Amps (100–2000 CCA), internal resistance, and real-time voltage waveforms.

Comprehensive Battery & System Diagnostics

The KW218 performs battery health tests, cranking system tests, and alternator charging system tests. Its 2.4-inch color LCD display provides clear numerical readings, percentage health status, and live voltage waveform graphs without requiring battery removal.

Key Features

  • 6V & 12V Battery Range: Tests 6V and 12V automotive, motorcycle, marine, and commercial battery systems.
  • 100–2000 CCA Test Capacity: Supports CCA, BCI, CA, MCA, JIS, DIN, IEC, EN, SAE, and GB measurement standards.
  • Live Voltage Waveform Graphing: Displays real-time voltage fluctuations to diagnose starter motor draw and alternator ripple.
  • Heavy-Duty Copper Clamps: Includes gold-plated alloy clamps and a 650mm cable harness for secure terminal contact.
In The Box
  • 1 x Konnwei KW218 Battery Tester Unit
  • 1 x Heavy Duty Battery Clamp Harness
  • 1 x USB Cable & User Manual
Shipping & Returns
  • Exchange Only
Warranty
  • 1 Year
  • 5 stars: 2 (67%)
  • 4 stars: 1 (33%)
  • 3 stars: 0 (0%)
  • 2 stars: 0 (0%)
  • 1 star: 0 (0%)
S
Syed M.

Bought for quick CCA checks, works great.

Bought for use at work. Pretty easy to use. Not as accurate as some of the more expensive ones I've compared it against but it is close enough to get a good reading for the price tag.

It actually had an update, which was more than a little surprising considering I didn't recognize the brand.
The companion software is simple and all it does is give an option to print the latest result. Which is plenty.

R
Romney

Received the tester today and immediately used it to test the battery on my 2012 Vento which can sit for days at a time (not ideal for a battery.) I charge the battery a few times a month and recently the trickle charger has been aborting the charge. The tester reported a Good Battery which was reassuring. I will likely use it to test my motor cycle and pickup truck batteries as they also sit unused for days. The manual is decent making the device easy for first-time use. The only thing that took some time was finding the software download on the Konnwei site - it is under "upgrade." With the SW loaded on the PC, I printed the results to a PDF file. Very useful device if you have several batteries.

G
Ganesh N.

Value for Money Accuracy is Good
This Product is Value for money and Has a Good Accuracy level. There is no internal battery so it require it starts up as soon as the aligator clamps are connected on the battery