This versatile charging system (battery and alternator) tester requires no internal battery of its own and is compact for maximum convenience, an insurance policy for your battery/alternator for less than 30 bucks.

With the summer season upon us, heat and vibration from long road trips can kill your truck’s battery. Even if the gauge in your truck reads that you’re in the clear, there’s no telling if your battery or alternator may head south on you when you’re out on the road. (more…)