Performance Tool W2989 Battery Alternator Tester
The Performance Tool W2989 tests battery and alternator condition on a 12 volt system from inside the vehicle. Plug it into the vehicle's 12V auxiliary power outlet (cigarette lighter socket) and the LED indicators show the status.
Key Features
- Plugs into a 12V auxiliary power outlet (cigarette lighter socket)
- 3 LED indicators for battery condition: weak, normal or strong
- 3 LED indicators for alternator voltage: low, normal or high
- Works on any 12 volt system
- Compact size for glove box storage
Specifications
- Voltage: 12 V
- Power source: plug in, 12V cigarette lighter
- Battery indicators: 3 LED, weak, normal or strong
- Alternator indicators: 3 LED, low, normal or high
- Weight: 0.15 lb
Frequently Asked Questions
How do I use the W2989?
Plug it into the 12V cigarette lighter. The LED indicators show battery condition and alternator voltage status.
What does it test?
It tests battery condition, shown as weak, normal or strong, and alternator voltage, shown as low, normal or high.
What systems does it work on?
It works on any 12 volt system.
Performance Tool builds specialty tools and shop equipment for professional technicians and home garages alike. SiraWeb stocks the Performance Tool line with the specifications shown on this page, so you can order the right tool the first time.
