FOXWELL BT301 12V Car Battery Testr， Battery Load Tester 100-2000CCA Automotive Battery Tester Digital Alternator Starter Tester Cranking Charging Tester 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 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.

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.

Works very well. I did notice that you do need to go directly to the battery posts. My vehicle (as well as others today) have the negative post inaccessible because of air intake vents. Using a ground from the body or other area will give false results. The manual says to go to battery post directly, so don't try to take a shortcut. Also had a question about a particular button and their response was very quick and very well explained.

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.

Just got it , can’t wait to use it , as a mechanic I have had lots of foxwell products , i owned a nt510 elite obd2 scanner , bought it used and had it for years , then last year my wife got me the newer version, nt710 touch screen scanner , and I love it also, foxwell has always provided great support, even automatically transferred all my previous purchased software packs to my new scanner for me , and I have no doubt I will use and love this battery tester for years to come , great tool for diagnostic work

Great product.

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works well

Very easy to use and understand , after charging my battery and testing it , the result was confirmed by the tester cranking was low compare of what the battery was suppose to give .

Tested 2 batteries,1 good 1 bad. Both tested the way they should. Only 4 stars because although it tests a 6v battery, it doesn't do a capacity test leaving it kind of useless for testing 6v RV batteries

Excellent. Easy to use. Leads long to connect with tight spaces like a boat