We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Handheld rectangular battery tester with digital screen and attached clamps

Jansicotek

Jansicotek KW650 Battery Tester 6V 12V 100-2000 CCA

SKU CH-3SZJ-6RXZP MPN KW650

Tests 6V and 12V batteries from 100 to 2000 CCA with 99.5% accuracy, includes bad cell load analysis and digital readout in milliseconds

  • Energy Star statusEnergy Star Qualified
  • Size or dimensions5.94 × 3.22 × 2.2 in
  • Number of items1× KONNWEI KW650 Car Tester 1× User Manual 1× We provide 3 y
  • Sold asSet
  • Product typeMultifunction Testers
  • Key featuresKONNWEI KW650 Function and Features 1. Works on ALL OBD II E
  • Tests 6 V and 12 V batteries from 100 to 2000 CCA
  • Delivers over 99.5 % accurate results in milliseconds
  • Works on batteries inside or outside the vehicle
  • Shows health percentage and clear Good, Recharge or Replace advice
  • Compact 5.94 × 3.22 × 2.2 in tester with three-year service cover

6V 12V Battery Analyser

The Jansicotek KW650 tests 6V and 12V starter batteries from 100 to 2000 CCA. It covers regular flooded, AGM flat plate, AGM spiral and gel chemistries. The tool is aimed at professional technicians and serious DIY owners who need a quick health check on cars, trucks, motorcycles, SUVs, boats and lawn equipment.

Handheld conductance tester

The unit connects directly to battery terminals and works with the battery in or out of the vehicle. No external power supply is required; it draws energy from the battery under test. A patented one-click readiness key gives instant emissions-readiness status on all OBD II gasoline and diesel vehicles.

99.5% accuracy with STM-32 chip

The built-in STM-32 processor delivers better than 99.5% accuracy in milliseconds, referencing Midtronics results. It reports voltage, internal resistance, cold cranking amps, health percentage and charge state, then advises Good, Recharge or Replace. The 100-2000 CCA range covers most automotive starter batteries but stops short of heavy-duty commercial banks.

How it compares

Measured against everything we stock in Meters, Testers & Measuring Tools, at today’s prices. Recalculated every night.

Price $42.99
Cheaper than about 57% of the 3,030 comparable items (median $54.99).

Specifications

Product
Brand nameKonnwei
Model nameKW650
Product typeMultifunction Testers
Size & build
Size or dimensions5.94 × 3.22 × 2.2 in
In the box
Number of items1× KONNWEI KW650 Car Tester
1× User Manual
1× We provide 3 years long after-sale service.
Environment & compliance
Energy Star statusEnergy Star Qualified

Questions about this item

How long can the KW650 run continuous tests before the display overheats or the chip throttles?

The STM-32 chip delivers results in milliseconds and the tester is designed for repeated in-vehicle or bench use without a stated thermal limit.

What noise or heat does the KW650 produce during all-day workshop use?

The unit has no fan or moving parts; it draws power only from the battery under test and remains silent and cool during extended sessions.

Which battery posts or adapters must I already own to connect the KW650 to a 6 V or 12 V battery?

The tester clamps directly to standard top-post or side-post terminals on 6 V and 12 V batteries from 100 to 2000 CCA; no extra adapters are required.

More in Meters, Testers & Measuring Tools

Similar items