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TOPDON

TOPDON BT100 Car Battery Tester 12V Load Tester, 100-2000 CCA Automotive Alternator Tester Digital Auto Battery Analyzer Charging Cranking System Tester for Car Truck Motorcycle ATV SUV Boat Yacht

    • Based on 4,297 reviews
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$47.19 Why this price?
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Availability: Only 8 left in stock, order soon!
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Arrives Thursday, May 1
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Features

  • [Car Battery Tester] You can easily test and inspect your 12V lead-acid battery with this TT TOPDON car battery tester. The SOH (State of Health), SOC (State of Charge), Voltage, Current, Rating, and numerous other understandable analytical data are provided by this battery tester. It is compatible with 100-2000CCA regular flooded, AGM flat plate/spiral, EFB, and GEL for their optimum performance.
  • [Wide Application] This 12V battery load tester can only be powered on once it is properly attached thanks to a safe passive testing approach. You may test the batteries of a number of vehicles, including cars, motorbikes, trucks, RVs, ATVs, SUVs, boats, yachts, lawnmowers, and even golf carts, without needing to charge the device first.
  • [3 Testing Function] A battery health test will determine whether or not the battery is in excellent operating order. A cranking test will determine whether or not the electrical system has sufficient power to start the engine. Check to see that the charging current, rectifier diode, and generator are all functioning normally. This handy auto battery analyzer makes sure your summer road trips wont end on a flat.
  • [Ergonomic Features] To help you rapidly determine the health of the battery, this load battery tester is built with three different colors of LEDs. It's easy to use because it operates through a menu system. Additionally, for a reliable and secure connection during the testing process, premium-quality copper clamps have polarity reverse prevention and spark proof features.
  • [Great Choice] The TOPDON BT100 is small and compact, making it simple to keep in a glove box or center console. This battery load tester's rapid and precise results will enable you to decide whether your car battery needs to be replaced or jump-started making it an excellent choice for auto shops, garages, and DIY users who frequently check batteries.

Brand: TOPDON


Power Source: Battery Powered


Style: For cars/ trucks/ Boats


Color: BT100


Item Weight: 8.96 ounces


Brand: ‎TOPDON


Power Source: ‎Battery Powered


Style: ‎For cars/ trucks/ Boats


Color: ‎BT100


Item Weight: ‎8.96 ounces


Item dimensions L x W x H: ‎5.3 x 3 x 1 inches


Min. Operating Voltage: ‎12


Specification Met: ‎Cca


Measurement Type: ‎Voltmeter


UPC: ‎850028162088 632111309187


Manufacturer: ‎TT TOPDON


Model: ‎BT100 Car Battery Tester 12V Load Tester


Item Weight: ‎9 ounces


Product Dimensions: ‎5.3 x 3 x 1 inches


Country of Origin: ‎China


Item model number: ‎BT100 Battery Tester


Is Discontinued By Manufacturer: ‎No


Exterior: ‎Smooth


Manufacturer Part Number: ‎TT TOPDON


Special Features: ‎All-in-one car battery tester with cranking and charging system test, load and alternator checking


Voltage: ‎12 Volts


Date First Available: October 14, 2019


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, May 1

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
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  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

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Top Amazon Reviews

    • Works very well
If you’re a mechanic this device is a must for you, it tests every thing related to car batteries. It’s so accurate and easy to read and work on. It has beautiful design and worth it.
Reviewed in the United States on February 26, 2025 by Mike
    • Great product for the price
Good product and easy to use
Reviewed in the United States on April 21, 2025 by Rick Bergman
    • Great tool to have if you own a car!
Review Image by Coralie Dinger Coralie Dinger
Review Image by Coralie Dinger Coralie Dinger
Super easy tool to use to confirm your battery condition. Everyone should own one of these tools. This was my first Topdon tool and I’m impressed by the quality. Using this tool is way more convenient that having to take your car down to the local auto parts store to have your battery tested.
Reviewed in the United States on April 3, 2025 by Coralie Dinger Coralie Dinger
    • Battery tester
Easy to use and their own screen will walk you right through the steps to check your battery and alternator, charging powers itself from your battery if your battery has at least 6 volts.
Reviewed in the United States on February 27, 2025 by Gene Matthews
    • Decent battery tester
Arrived on time. Works perfectly. Good value.
Reviewed in the United States on April 4, 2025 by Silly Jilly
    • Unexpectedly good
I have been using a 500 amp carbon pile load tester to test lead acid batteries for many years. It works well enough, but it’s large, heavy, and tends to smell bad as it heats up when you use it. It also drains a significant amount of energy from the battery under test to the point where the user manual suggested to charge the battery after running a load, test. Also, the analog voltmeter, is not particularly accurate or easy to read in dim light or at an angle, due to parallax. I bought the TOPDON BT100 with low expectations, but I was proven wrong. The battery health (load) test works by putting a high load on the battery for a very short time, so it does not dissipate much power during the test. This has the advantage of allowing the device to draw very little total energy from the battery and thus generate very little heat. There is also no need to recharge the battery after the test. While the load is applied it measures the battery voltage and calculates the internal resistance of the battery and its capabilities for cranking amps (CA and CCA), as well as displaying its loaded and unloaded voltage. You can set the specified CCA of the battery before the test, which allows it to return a go / no-go result. One of the many advantages of this approach is that the tester is able to determine if the battery clips are not well connected before the test. I tested the BT100 on a number of lead acid batteries, including a 9AH UPS battery, an 18AH UPS battery, a 250AH AGM battery bank that I use for power back up, and my car battery which is rated for 520 CCA. In all cases, I got nearly identical results to the carbon pile tester. In addition to battery health, you can use it while starting the car to measure cranking time and the minimum battery voltage during cranking. You can also use it to test the charging system in your car, and of course, to report the battery idle voltage. Overall, I was pleasantly surprised at the quality results provided by this device. I’ve only owned it for a couple of weeks, so I can’t speak to its longevity, but so far it’s a huge win. Disclaimer: I purchased this with my own money. I was not asked to write this review, and these are my own opinions. Also, I am not an AI bot although I’m not sure how you could tell if I was :) ... show more
Reviewed in the United States on April 28, 2023 by M Lewus
    • Easy to use
Great, easy to use
Reviewed in the United States on April 7, 2025 by R. Willis
    • Very well worth the money
This item is very helpful, it displays, you hear cranking amps, add condition of the battery, and also, you can check your alternator output that we're very helpful.Also. I highly recommend this item
Reviewed in the United States on March 2, 2025 by Busa

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