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KONNWEI KW371 Car Battery and Relay Tester1 / 5
Car Accessories and Dash Cams

KONNWEI KW371 Car Battery and Relay Tester

A battery and relay tester that checks the car battery and charging system, with fault data you can print.

Sold onAliExpress98.4% positive seller feedback · 214 orders
₪148.50$46.84List price $48.05
Under $75: no import VAT

This price includes seller code SBRBR4SOP05D.

Seller codeSBRBR4SOP05D$1.21 off orders over $15 before this code · until Nov 30

Paste it at checkout. Without it, the price is $48.05.

Optional: one more code that may lower the price further. It isn't included above.

Platform code · optionalILAFF08$8 off orders over $45 before this code · until Nov 18With it: about ₪123 ($38.84)

How to apply: copy a code, then paste it into the coupon field at checkout on AliExpress.

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More About This Pick

Why We Picked It

  • Spots a weak battery before it strands you
  • Tests relays too, saving a trip to the garage
98.4%seller rating
214orders
No VATunder $75

Figures from the AliExpress listing when we checked it.

Key Specs

Voltages
6V, 12V and 24V
Tests
Battery, charging system, relays
Relay types
4 pin and 5 pin
Output
Fault data printing

Specs from the seller's listing.

Good

  • Quick check without a garage visit
  • Covers both cars and trucks
  • Relay testing in the same tool

Keep in Mind

  • Needs some car knowledge to read results
  • Printing feature details are unclear

In These Guides

Buying guide

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