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Black rectangular digital battery tester with screen and clamps, 5.94 by 3.22 by 2.2 inches

LUOM

LUOM KW650 6V 12V Digital Battery Tester

SKU CH-ZYPM-HJAYT MPN KW650

Tests 6 V and 12 V batteries from 100 to 2000 CCA with 99.5 % accuracy in milliseconds

  • Size/Dimensions5.94 x 3.22 x 2.2 inches
  • DC Voltage12V
  • Analog/DigitalDigital
  • DC Polarity IndicatorYes
  • Color/FinishBlack
  • Item Count1× KONNWEI KW650 Car Tester 1× User Manual 1× We provide 3 y
  • Tests 6V and 12V batteries from 100 to 2000 CCA
  • Over 99.5% accuracy via STM-32 chip in milliseconds
  • Shows voltage, resistance, CCA, health and charge status
  • Works on batteries in or out of the vehicle
  • Tests starting and charging systems for complete diagnosis

6 V / 12 V Battery Analyser

The LUOM KW650 tests 6 V and 12 V lead-acid batteries rated from 100 to 2000 CCA, covering flooded, AGM flat-plate, AGM spiral and gel types. It suits professional workshops and serious DIY owners who need a quick health check on cars, trucks, motorcycles, ATVs, boats or lawn mowers. The tester works with the battery in or out of the vehicle. It is not for lithium chemistries or for systems outside the stated voltage range.

Handheld tester with integrated clamps

The unit measures 5.94 x 3.22 x 2.2 inches and runs on AAA batteries, so it needs no external power supply or laptop connection. A built-in DC polarity indicator warns of reversed leads before a test begins. The package includes the analyser and a user manual. No software installation or subscription is required, freeing the operator to move between bays or job sites.

Conductance testing with STM-32 processor

The STM-32 chip delivers results in milliseconds with a claimed accuracy above 99.5 %, referencing Midtronics methodology. Readings include voltage, internal resistance, cold-cranking amps, health percentage and charge status, followed by a Good, Recharge or Replace recommendation. The device also checks starting and charging systems, and supports firmware updates to maintain coverage over time. Noise level spans -10 to +56 dB during operation.

Highlights

  • Tests 6V and 12V batteries from 100 to 2000 CCA
  • Over 99.5% accuracy via STM-32 chip in milliseconds
  • Shows voltage, resistance, CCA, health and charge status
  • Works on batteries in or out of the vehicle
  • Tests starting and charging systems for complete diagnosis

Specifications

BrandKonnwei
ModelKW650
Size/Dimensions5.94 x 3.22 x 2.2 inches
DC Voltage12V
Analog/DigitalDigital
DC Polarity IndicatorYes
Color/FinishBlack
Item Count1× KONNWEI KW650 Car Tester
1× User Manual
1× We provide 3 years long after-sale service.
Energy Star QualifiedEnergy Star Qualified
Selling UnitSet
TypeMultifunction Testers
FeaturesKONNWEI KW650 Function and Features
1. Works on ALL OBD II Enabled vehicles, both Gasoline and Diesel cars - domestic and imported.
2. Features the unique patented One-Click Readiness Key for quick State Emissions readiness check and drive cycle verification.
3. built-in speaker provide both visual and audible tone for readiness verification
4. Retrieves generic (P0, P2, P3 and U0), manufacturer specific (P1, P3 and U1) codes and pending codes
5. Easily determines the cause of the Check Engine Light(MIL)
6. Turns off Check Engine Light (MIL), clears codes and resets monitors
7. Views
Maximum Input Current15A
Maximum Output Current15A
Maximum Ohms1M Ohms
Noise Level-10 to +56 dB
Accuracy±6mm
Standards/CertificationsUL/CSA
Battery TypeAAA battery
Commercial/ResidentialCommercial

Questions about this item

What is the maximum current the KW650 can handle during continuous testing?

The tester is rated for a maximum input and output current of 15 A, which sets the hard limit for sustained load testing.

How loud does the unit get when it runs all day in the workshop?

The specified noise range is -10 to +56 dB, so even under continuous operation it stays at a low conversational level.

Which battery must I supply myself before the tester will power up?

The KW650 requires a single AAA battery, which is not included in the box.

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