FOXWELL BT100 Pro 12V Car Battery Tester, Battery Load Tester, 100-1100CCA Automotive Alternator Tester Digital Auto Battery Analyzer for Car Truck Motorcycle SUV, Boat, Marine, RV & Pickup

The connectors seem really well made and are larger than what you find on a lot of battery chargers which make fitting on the battery terminal much easier. The device powers on quickly and was very simple to use. I didn't even read the directions the first time I used it. Very easy to get the information you need on batteries state of charge and perform a cranking amp test. I think I'm going to use this on all my batteries before winter every year and hopefully save myself the hassle of getting stranded which the first cold snap that finishes off an already weakened battery.

Accurate and easy! This FOXWELL BT100 Pro is a lifesaver. It quickly diagnosed a bad cell in my truck battery that the local shop missed. It's simple to use, works on AGM and GEL, and the backlit screen is very clear. Essential tool for any one to use!!

This item is great to tell you when your vehicle & boat & etc batteries are going bad. Easy to use and very lightweight.

Bought this thinking the advertisement picture was accurate. For my job, we do digital inspections. I can't use it at work because the state of charge and the state of health is on a seperate screen. Will be buying a different tester. This is good if you're not using it every hour.

Well built, works perfect and easy to read.

This is a very handy tester that works well and is very easy to use. Yes, they will do the same sort of test at AutoZone, O'Reilly, Advance Auto but it is still handy to have in your toolbox. Only negative to it I found is that while it does give a test result for internal resistance denoted as "RES." on the screen, the manual doesn't give any information about what that is or what good, average or bad reading would be.

Great little tester, shows the internal resistance, state of charge and whatnot... Great tool to point out the how awful the modern computer controlled chargers are. Old buzz box timer types are 10x better - measured with this thing - and the "battery restore" function is provably worthless - again, measured with this thing.

I purchased this to test my 6-volt deep cycle batteries used on my RV. As things sometimes work out the day I received my tester my cars battery light came on. I have never seen this light up when driving and seeing how I replaced the alternator about a year ago I felt it might have been the battery going bad. I opened the hood to inspect the battery which is now 3 year and 2 months old. (2 months past the free replacement warranty period). I was about to pull out the battery and go purchase a new one when I remembered I had just purchased this fancy battery tester. I hooked up the tester which powers on as soon as it is connected to the battery. The first thing I see is the battery voltage which was reading low. (Now worried about the alternator not charging the battery) I ran the battery test. The menu is easy to follow, and the tester had me perform actions like turn on my headlights then turn them off so it could measure the drop in voltage. Anyways good news was the battery was fine as identified by the test tool. I cleaned the post and reconnected and started the car and now the light on the dash was off and after driving around for about 30-45 minutes (maybe longer) I retested and the voltage had climbed back up and the tester was no longer telling me the battery needed to be charged. I also tested my 2 6-volt batteries. both are reading a low charge and they need to be replaced. I'm running a full charge on them now to make sure they are floated then will retest. If the test tool continues to tell me they need to be replaced I will take them back into Batteries Plus to have them test. The reason for this is my Inverter will not power up and throws a low voltage alarm which has me thinking one of the two new 6 volt batteries are bad. The test tool is telling me they both are bad so will continue my testing and will hopefully update this review with my findings. At this point I'm very happy with this tester, it is easy to use and seems durable.

I actually use this thing alot. Tells you all about your battery and works good. Easy to use. Wish I had bought one years ago.

Cumple bien su funcion

This tester is so easy to use. It's as easy as plug and play. I checked various batteries on the cars and off the car. All diagnosis was as I expected but confirmation was good as I didn't have to go to a garage or elsewhere which always saves you money. It is so easy to use, step by step on screen, I don't know why I didn't buy one sooner.

Great product does the job it says and works better then drop tester thanks

Perfect tool for quick battery checks. After a quick data entry only takes 5 seconds have the results. The accuracy is good. Since it is still new I can't speak anything about its durability.