Why go to the shop for an accurate reading on your battery or alternator when that power could be in your hands? The OEMTOOLS 24338 100A Battery Load Tester tests the health of 6 or 12 volt batteries in consumer vehicles. This battery tester 12v battery load meter tool is easy to use and effectively analyzes batteries in a mere 10 seconds. Using a shock-resistant meter and rust-resistant copper clamps, this automotive battery tester is ultra durable and useful for a variety of common shop tasks. Determine the state of charge, cranking, and charging volts with our amp load tester. Test the battery in your car, RV, or golf cart, or diagnose issues with your alternator all with one auto battery voltage tester. Golf courses will find our golf cart battery tester invaluable when checking their fleet of golf carts. This near-universal battery tester even works as a marine battery tester for those with small boats. The family fleet or motorcycle battery's health are diagnosed quickly with this battery meter 12v tool. And because this powerful car battery tester and alternator tester comes in such a small package, it's easy to take with you anywhere. Carry the 12v battery meter to a friend's house or your neighbor's place with the convenient handle. Keep our battery checker tester in your vehicle's emergency kit, or keep our auto battery tester in your home shop, so you're never without the 6 volt battery tester when you need to diagnose battery issues. Our batteries tester for cars goes to work in a snap. You can use this tester for all batteries in the 6v or 12v range. This battery amp tester can plainly tell you your battery's health, load, and whether it's receiving a charge from your alternator. This is a simple, yet powerful alternator and battery tester for diagnosing common battery and charging system issues in your vehicle. Take your car's maintenance into your own hands with the OEMTOOLS 24338 100A Battery Load Tester.