FOXWELL BT301 Car Battery Tester 12V, Battery Load Tester 100-2000CCA Automotive Battery Tester Digital Alternator Tester Cranking Charging Checker for Car Marine Truck SUV ATV, (Upgraded BT100）

I spent days searching for a good unit. This has great reviews and is sold online a lot. I decided to buy it. I'm so very happy that I did. This unit is awesome and is 100% accurate. I even tested this against other devices and this is spot on. I bought a brand new odessey performance battery for $400 and I bought as well to test. The battery says 765 CCA. This device says 770 CCA. That is awesome. I love the color screen and how big it is. So easy to use. So many features on this little device. It also measures votage accurately. Great functionality and battery life is very long. So very easy to read everything. I highly recommend this.

This has been a great tool for testing the batteries in my various cars and also for helping out my neighbors and friends too. It can very quickly test the cold cranking amps of your current automobile battery along with validating the alternator charging functionality. It has been very helpful for troubleshooting no start electrical conditions. I checked the voltage displayed on this tester against my calibrated Fluke DVM and it was 100% accurate. This tester is easy enough to use that I could hand it to my kid and they'd be able to check their car's battery and charging system without any instructions. Just need to follow the clear prompts on the menus. The zip up soft case this tester comes with is handy to protect it in a trunk and the case has space to store the product manual if you need it. I paid ~$60 USD for this tester, so it wasn't the cheapest, but I gladly pay more for accuracy and complete testing capabilities over the less expensive automotive testers on Amazon.

This product works as described, its well made and easy to use, the instructions explain how to use this product very well except for one button on the product , it's the red button on the touch pad, the instruction manual does not menschen this button, as far as I can it does absolutely nothing.

This is yet another incredible product from Foxwell. This gadget performs multiple tests which are critical for diagnosing an electric issue with either your starter, alternator or battery. The settings are easy to use. Battery life is excellent as it's powered by the battery you're seeking to test. It's completely phantom powered. The accuracy of the unit when comparing it to more expensive testers is on par. This unit offers more utility features and tests that more expensive units fail to offer. The value for the money is incredible here. If you're a DIY mechanic, shade tree mechanic, weekend warrior or professional, don't miss out.

I was having issues with my old car not starting sometimes. Car batter was relatively new so I thought I might have a bad diode issue. Got this tester to try and find the issue myself, worked well to identify that my battery was bad. Replaced the battery and car has been starting without issue.

I purchased this unit so I could test an AGM battery that constantly had issues. I learned alot about AGM batteries while researching battery chargers and battery tester. The Foxwell tester showed me exactly what was wrong with my battery. The unit is very easy to use and provides test results quickly. It is very sturdy. Clamps and cable heavy duty. It is definitely not built cheap. It has several testing options to choose from including testing your charging system. I like that it is powered by the battery you are working on as soon as you hook up the pos/neg terminals. Very happy with this tester. Decent price.

Tests battery and charging system and is easy to use. Test batteries not installed in vehicle. Pleased with purchase and ease of use.

Excellent product