Could the alternator test bench at an auto parts store be wrong?
The new alternator tests good at the store, but when it's in my car, it doesn't function properly. The battery light is on and its draining the battery. Could the test be inaccurate? not likely.you don't mention make,model, voltage regulator, grounding problem etc,,, is the amperage of the battery enough for your car! however i would say discharge problem,ie.alternator/regulater! i bet it's the latter!
Is that a safe way of testing it? could that damage something?
I grabbed a multitester and head down to carpark. Test on the battery and alternator. So I concluded both of components are working fine.
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