The 10 Best Auto Battery Testers

Updated March 09, 2017 by Brett Dvoretz

10 Best Auto Battery Testers
Best High-End
Best Mid-Range
Best Inexpensive
We spent 26 hours on research, videography, and editing, to review the top choices for this wiki. Whether you are having difficulties with your auto or boat starting or you just like to preempt any problems, these car battery testers are capable of providing a complete charging system diagnosis, including testing the load, the starter motor draw and reporting the overall battery's health, so you know if it is near the end of its life. When users buy our independently chosen editorial picks, we may earn commissions to support our work. Skip to the best auto battery tester on Amazon.

10. Noco BTE181

The Noco BTE181 can test both engine cranking ability and starter motor performance. It's great at checking deep cycle batteries in solar applications, too. Unfortunately, it can't stand up to daily use and isn't suitable for commercial applications.
  • draws very little power
  • budget-friendly price
  • at 4lbs it is heavy to hold
Brand NOCO
Model BTE181
Weight 3.2 pounds
Rating 4.0 / 5.0

9. Schumacher BT-100

The Schumacher BT-100 boasts a shock resistant meter and well-insulated copper wires that safely conduct the testing load. It works well on boat batteries, too, and has a helpful color-coded display that DIYers can understand.
  • provides a charge system diagnosis
  • graphs for 12v and 6v testing
  • doesn't always detect bad cells
Brand Schumacher
Model BT-100
Weight 2.8 pounds
Rating 3.9 / 5.0

8. Actron CP7612

The Actron CP7612 has a durable chrome-plated steel housing that is nearly impossible to bend. It comes with thorough and easy to understand instructions, and it has strong connection cables and clamps with tight jaws to ensure they won't wiggle loose.
  • performs voltage and load tests
  • backed by a one-year warranty
  • gets hot while testing
Brand Sunpro
Model CP7612
Weight 3.6 pounds
Rating 3.7 / 5.0

7. OTC 3181 Heavy Duty

The OTC 3181 Heavy Duty features an ergonomic design with a well-placed operating switch, can be used on both top and side posted batteries, and it features on-board clamp storage and has back brackets, so you can mount it on a wall.
  • feels very well made
  • extra large analog display
  • cables are too short
Brand OTC
Model 3181
Weight 3.1 pounds
Rating 4.1 / 5.0

6. Cen-Tech Digital 66892

The Cen-Tech Digital 66892 uses your car's battery for power, so you never have to worry about dead batteries in the unit preventing you from testing. It also has a slim grip and soft siding, allowing you to hold it with one hand while adjusting the clamps with the other.
  • displays battery impedance
  • comes with nearly 20-inch leads
  • buttons don't always work
Brand Cen-Tech
Model pending
Weight 16 ounces
Rating 4.4 / 5.0

5. Auto Meter SB-300

The Auto Meter SB-300 can detect issues like discharged batteries and bad cells and will also report a battery's health, so you know if it is near the end of its life and needs to be replaced. Conveniently, it also stores the last 100 test results in case you need them.
  • produces a 40-amp test load
  • also works on 6v systems
  • very intuitive menu
Brand Auto Meter
Model SB-300
Weight 2.4 pounds
Rating 4.3 / 5.0

4. Clore Automotive Solar BA9

The Clore Automotive Solar BA9 has been designed specifically to work with four battery types: flat plate and spiral wound AGM, gel cell and wet cell. It can produce accurate results as long as the batteries haven't been discharged below seven volts.
  • reverse polarity protection
  • for batteries up to 1200 cca
  • step-by-step testing sequence
Brand Clore Automotive
Model BA9
Weight 12 ounces
Rating 4.1 / 5.0

3. Midtronics PBT300

The Midtronics PBT300 boasts a wide measurement range from 100 to 1,400 cold cranking amps and delivers a test decision in seconds. It's a favorite among professional mechanics because you can use it on a daily basis without worrying about internal components breaking.
  • checks alternator efficiency
  • bright easy-to-read screen
  • detects bad battery cells
Brand Midtronics
Model PBT300
Weight 1.3 pounds
Rating 4.8 / 5.0

2. QuickyLynks BA101

The QuickyLynks BA101 can test the condition of charged and discharged batteries and display those results in six different languages. Also, it's very compact and weighs under a pound, so it's perfect to keep under a motorcycle seat or in a glove compartment.
  • instructional dvd
  • simple 4 button operation
  • produces consistent results
Brand Quicklynks
Model BA101
Weight 9.6 ounces
Rating 4.9 / 5.0

1. Clore Automotive Solar BA327

The Clore Automotive Solar BA327 has a built-in printer that will produce a hard copy of your test results so there is no chance of you forgetting them. It also has an internal counter to track the number of tests performed and gives a unique code to each one.
  • up to a 30 volt operating range
  • suitable for multiple battery types
  • cable ends can be replaced as needed
Brand Clore Automotive
Model BA327
Weight 5.5 pounds
Rating 5.0 / 5.0

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Last updated on March 09, 2017 by Brett Dvoretz

A wandering writer who spends as much time on the road as behind the computer screen, Brett can either be found hacking furiously away at the keyboard or perhaps enjoying a whiskey and coke on some exotic beach, sometimes both simultaneously, usually with a four-legged companion by his side. He hopes to one day become a modern day renaissance man.

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