ANCEL BA101 Car Battery Tester, 12V Digital Automotive Alternator Meter Diagnostic Tool,100-2000 CCA Load Capacity, Charging & Cranking Analyzer for Truck, Boat, RV, Marine Vehicle, and MoreGlobal Recycled StandardGlobal Recycled StandardGlobal Recycled Standard

If you're interested in testing the condition of a lead-acid battery, this device is an excellent choice. It can be used with batteries both inside and outside of the vehicle. It's compact and very easy to use, making it a great value for the price.

Works great and price is not bad either. Saw a youtube review on testers by Project Farm which led me to this

I see mixed reviews about the performance of this device, but it worked great for me! Battery brand new showed 100% and in good condition. Charging system failed at Autozone and shows lower than 13.5-14.5 volts while engine running so low charge fails with this tester too. It does work off the battery but couldn’t seem to get the print feature to work from my computer. Only complaint is it’s too small and feels of sub quality materials. I got it since I thought I was getting a deal as it used to be around $55. Still, it worked well for my needs. Thank you.

nothing fancy; Light and very convenient to use

Good little battery tester that appears to be pretty accurate.

Awesome, should’ve bought it along time ago. I have 5 cars, kids etc. got a dead battery that was new 3 months ago, wasn’t sure if I should buy a new one. Turns out the battery was fine, worth recharging, as the tester told me, was just drained because someone left a door ajar for 2 days.Went and tested my car 12v, turns out it was the original 13 years old, near death. Quickly replaced mine. Another is at 41% and will need to be watched. A truck we park for most of the year, is actually still at 100% after 6 years.So the tester really lets you know where your at, my multimeter only showed voltage.Very useful!

this battery tester is awesome, before buying this I watched a video where this unit was tested against several others some cheaper ones and at least one that cost 10 times what this one cost. And out of all of those the overall performance of this unit was top notch. There was nothing that would suggest to me that spending $300 would’ve been any benefit. I have used this tester twice and gotten very accurate results. I highly recommend this as it will be as good if not better than those I professional would use.

This is capable of testing car batteries and more, for instance I have a 9 year old car with the original battery in it. The group 35 battery used in this car is rated at around 500 CCA (cold cranking amps) and this tester shows it has only 196 even with the battery fully charged. Whereas the new everstart battery bought to replace it shows 690 CCA, even though it is only the value line $70 battery. (The internal resistance value gets higher as cca goes down, that value is shown as well) That is only the beginning of what the ancel can test, it will also analyze the starting and charging systems. Manual included but so far haven’t read it all so can’t report on how easy it is to understand. It’s intuitive enough for someone with a little experience to follow screen prompts and set the cca rating as found on battery. Even at 196 cca this car always starts, though it does crank slower than it should. Hot temperatures are a key factor in hastening the demise of a battery, but cold weather is when it’s noticed more. Fall is a good time to test so your vehicle won’t let you set in winter.