Performance Tool W2989 12V Cigarette Lighter Car Battery Tester and Alternator Tester
Performance Tool W2989 12V Cigarette Lighter Car Battery Tester and Alternator Tester
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Performance Tool W2989 12V Cigarette Lighter Car Battery Tester and Alternator Tester

3.5 stars out of 8 reviews
(3.5)|
8 ratings

Key item features

  • Effortless Testing: Quickly assesses car battery and alternator condition without complex procedures or additional tools.
  • Clear Indicators: Features 3 LED indicators for battery status (weak, normal, strong) and 3 for alternator voltage (low, normal, high).
  • Simple Connection: Plugs directly into any 12V cigarette lighter for immediate status readings.
  • Broad Compatibility: Works with any 12-volt system, including cars, trucks, boats, and motorcycles.
  • Portable Design: Compact size allows for convenient storage in a glove box, enabling on-the-go diagnosis to prevent breakdowns.
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Current price is $14.91$1,491.00/lb
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Columbus, 43215
Arrives by Mon, Apr 6
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Sold by Performance ToolPro Seller
Fulfilled by Walmart
4.639810426540285 stars out of 5, based on 211 seller reviews(4.6)
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3.5 out of 5 stars
stars8 ratings5 reviews
How item rating is calculated
  1. 5 stars63% (5)
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  5. 1 star38% (3)
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Showing 1-3 of 5 reviews

Dec 15, 2025
Vincent
Sold and shipped byPartsHawk
5 out of 5 stars review

Verified Purchase

This device lets you know your car charging system is working properly

Helpful?6AJFSXE17BR4616298611
Nov 30, 2024
Eduardo
Sold and shipped byMX PowerPlay
5 out of 5 stars review

Verified Purchase

Good yool testing!, i recommend!!

Helpful?6AJFSXE17BR4616298611
Mar 5, 2026
ccRyder
Sold byPerformance ToolDelivered byWalmart
1 out of 5 stars review

Verified Purchase

Unreliable - False Readings

Unit told me I had both a bad battery (it was a new one) and a bad alternator. I had my system professionally tested, everything was 100% fine.

Helpful?6AJFSXE17BR4616298611