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Schumacher BT-100 Battery Load Tester and Voltmeter - 100 Amp, Black

4.6 4.6 out of 5 stars 3,899 ratings
Amazon's Choice highlights highly rated, well-priced products available to ship immediately.
Amazon's Choice in Battery Testers by Schumacher Electric
Limited time deal NO_OF_HOURS hours NO_OF_MINUTES minutes Limited time deal NO_OF_MINUTES minutes Limited time deal NO_OF_MINUTES minutes NO_OF_SECONDS seconds Limited time deal NO_OF_SECONDS seconds Limited time deal
$39.46 with 11 percent savings
Typical price: $44.46

This is determined using the 90-day median price paid by customers for the product on Amazon. We exclude prices paid by customers for the product during a limited time deal.
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Purchase options and add-ons

Brand Schumacher Electric
Power Source Battery Powered
Style Enamel
Color Black
Item Weight 2 Pounds

About this item

  • TRUSTED TESTING: Test load, battery condition, and starter motor draw; 50 Amp load test for 6V batteries and 100 Amp for 12V batteries; tests up to 1000 CCA
  • COMPLETE DIAGNOSIS: Delivers a complete charging system diagnosis for batteries in cars, small trucks, RVs, motorcycles, ATVs, boats, and lawn tractors
  • SIMPLE OPERATION: Top-mounted rocker switch for ease of use and highly visible meter readings
  • HEAVY-DUTY CLAMPS: Super-grip, heavy-duty, color-coded battery clamps
  • STEEL CASE: Durable steel case with baked enamel shell and rubber-insulated carrying handle; ventilated to stay cool
› See more product details

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Schumacher BT-100 Battery Load Tester and Voltmeter - 100 Amp, Black
$39.46
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Schumacher BAF-B1 Battery Terminal Cleaning Brush
$4.69
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From the brand

From the manufacturer

BT100 Battery Tester and voltmeter
BT-100 BATTERY DIAGNOSTIC TOOL

TEST 6V/12 BATTERIES AND YOUR VEHICLE’S CHARGING SYSTEM

Quickly and easily test 6V and 12V batteries and your vehicle’s charging system with the Schumacher BT-100 100A 6V/12V Battery Load Tester and Voltmeter. The BT-100 is ideal for use with motorcycles, lawn tractors, ATVs, cars, light trucks, boats, and RVs.

The Schumacher BT-100 is the diagnostic tool every mechanic needs

EASY TO OPERATE

EASY TO OPERATE

Connect the tester, follow the steps for your desired diagnostics, and read the clear-view meter.

Retro Design

RETRO DESIGN

Schumacher Electric has been manufacturing high-quality and innovative automotive tools since 1947.

MULTIPLE TESTING OPTIONS

MULTIPLE TESTING OPTIONS

With the BT-100 you can perform 6V battery load testing, 12V battery load testing, charging system diagnosis, and starter motor testing.

WIDE COMPATIBILITY

WIDE COMPATIBILITY

The BT-100 is compatible with 6V and 12V batteries up to 1000 cranking amps.

BT-100 Battery Tester and Voltmeter

YOU CAN RELY ON SCHUMACHER

KEEP IT ROLLING WITH SCHUMACHER ELECTRIC’S LINE OF AUTOMOTIVE TOOLS


Professional mechanics and automotive enthusiasts trust Schumacher Electric to provide high-quality and innovative automotive power conversion tools and accessories. Since 1947, Schumacher has been designing and producing industry-leading power technology. Schumacher’s current range of products include EV chargers, traditional battery chargers, maintainers, jump starters, portable power stations, diagnostic tools, battery accessories, LED work lights, and more.

Quick Instructions

BT-100

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Customer Reviews
4.6 out of 5 stars
3,899
4.1 out of 5 stars
63
4.5 out of 5 stars
273
4.4 out of 5 stars
244
Price
$39.46 — $56.35 $76.98
Voltage
6V/12V 12V 12V 6V/12V
Load Tester
Yes Yes No Yes
Alternator Tester
Yes Yes Yes Yes
System Tester
Yes Yes Yes Yes
Diagnostic Tester
Yes Yes No Yes
Display Type
Meter LED Display Digital Display Meter

Product Description

The Schumacher BT-100 Battery Tester quickly and easily tests 6V and 12V batteries up to 1000 CCA, as well as providing a complete charging system diagnosis. It’s Ideal for cars, small trucks, RVs, motorcycles, ATVs, boats, and lawn tractor batteries, making it a convenient general-purpose tester. Includes a top-mounted rocker switch for simplified operation, heavy-duty color-coded battery clamps, easy to read meter, baked enamel steel case, and a comfort-grip, rubber-insulated carrying handle.

Product information

Technical Details

Additional Information

Warranty & Support

Amazon.com Return Policy:Amazon.com Voluntary 30-Day Return Guarantee: You can return many items you have purchased within 30 days following delivery of the item to you. Our Voluntary 30-Day Return Guarantee does not affect your legal right of withdrawal in any way. You can find out more about the exceptions and conditions here.
Manufacturer’s warranty can be requested from customer service. Click here to make a request to customer service.

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Schumacher BT-100 Battery Load Tester and Voltmeter - 100 Amp, Black

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What's in the box

  • Schumacher BT-100 Battery Load Tester and Voltmeter - 100 Amp,Black

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    Details
    Added to Cart
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    Added to Cart
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    Details
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    Details
    Added to Cart
    Price-11% $39.46
    Typical: $44.46    		$76.98$29.99$29.49$26.99$24.99
    Delivery
    Get it as soon as Sunday, May 12
    Get it as soon as Sunday, May 12
    Get it as soon as Sunday, May 12
    —
    Get it as soon as Sunday, May 12
    Get it as soon as Monday, May 13
    Customer Ratings
    4.64.6 out of 5 stars3,899
    4.44.4 out of 5 stars244
    4.34.3 out of 5 stars234
    4.24.2 out of 5 stars88
    4.24.2 out of 5 stars35
    3.83.8 out of 5 stars14
    Easy to read
    4.6
    4.4
    3.8
    3.8
    4.0
    4.6
    Easy to use
    4.6
    4.3
    3.9
    4.3
    4.3
    4.0
    Accuracy
    4.6
    4.3
    3.8
    3.8
    4.1
    3.5
    Sold By
    Amazon.com
    Amazon.com
    AUTOUTLET
    AUTTGINN-US
    kai heng US Store
    CRLITSIY
    power source
    Battery Powered
    Battery Powered
    Battery Powered
    Battery Powered
    Battery Powered
    —
    measurement type
    Voltmeter
    —
    Voltmeter
    Voltmeter
    Voltmeter
    —
    style
    Enamel
    Modern
    Digital
    —
    Voltage
    —
    weight
    2 pounds
    1 pounds
    —
    1 pounds
    —
    —

    Looking for specific info?

    Customer reviews

    4.6 out of 5 stars
    4.6 out of 5
    3,899 global ratings

    Customers say

    Customers like the value, quality and performance of the electric circuit testing device. They mention that it's well worth the price, it'll give years of reliable use and that it does a good job for voltage testing under load. They also like the accuracy, readability, and performance. However, some customers report that the device does smoke a bit when first used and that the heating element starts heating up pretty quickly. They differ on battery condition.

    AI-generated from the text of customer reviews

    605 customers mention580 positive25 negative

    Customers are satisfied with the performance of the electric circuit testing device. They mention that it works well as advertised, is easy to use, and is a great tool to have when diagnosing mechanical issues.

    "It works exactly as advertised. What more could one ask for from a tester?" Read more

    "This battery tester works as it should. Easy to read, appears to be accurate." Read more

    "Works as advertised worth the money. Gerald K." Read more

    "Built very well. Very durable. Works great." Read more

    279 customers mention234 positive45 negative

    Customers like the quality of the electric circuit testing device. They say it's well constructed, and does a good job for voltage testing under load. They also say it is good enough to perform diagnostic checks in the field and that it should give years of reliable use. Customers also mention that it is useful for discharge test of car batteries and that the clamps are good size.

    "The battery tester is well made and easy to use It should give years of reliable use" Read more

    "Built very well. Very durable. Works great." Read more

    "Heavy duty cables so they don’t affect the test, analog scale is pretty simple to read...." Read more

    "...as a digital meter I have but it was certainly good enough to perform diagnostic checks in the field...." Read more

    220 customers mention212 positive8 negative

    Customers find the electric circuit testing device easy to use and understand. They also say it's simple and has all the info they need to interpret results.

    "The battery tester is well made and easy to use It should give years of reliable use" Read more

    "This battery tester works as it should. Easy to read, appears to be accurate." Read more

    "Heavy duty cables so they don’t affect the test, analog scale is pretty simple to read...." Read more

    "Easy to use" Read more

    189 customers mention184 positive5 negative

    Customers appreciate the value of the electric circuit testing device. They say it's well worth the price, easy to use, and has clear instructions. Some customers also mention that it saves them lots of money.

    "...design being purely mechanical and is also reflected in the economical price...." Read more

    "...resistance circuit computerized battery tester, this unit is well worth the investment...." Read more

    "Great price . Works perfectly as designed. Would definitely recommend." Read more

    "...With having some solar power this gadget is a must and the price point was great. Now I need a good functional Hydrometer...." Read more

    55 customers mention44 positive11 negative

    Customers like the accuracy of the electric circuit testing device. They say the readings are consistent and the meter is functional. Some customers also mention that it is able to check their batteries with accuracy right out of the box.

    "This battery tester works as it should. Easy to read, appears to be accurate." Read more

    "...This tester is accurate. I have used it against my digital tester with the same results." Read more

    "...It was accurate and all functions worked as they should." Read more

    "I found the voltmeter was not as accurate as a digital meter I have but it was certainly good enough to perform diagnostic checks in the field...." Read more

    55 customers mention33 positive22 negative

    Customers are mixed about the battery condition. Some mention that the battery is good, while others say that it indicated that a particular battery was weak.

    "...Its easy to use and well worth having in your shop." Read more

    "...Seems to work as specified. Handy tool to have. Batteries don’t last. Hot and cold are hard on batteries...." Read more

    "Works great, no batteries required. Read and be sure to understand the instruction manual before you use the tester...." Read more

    "...It did indicate a need for a battery replacement which was confirmed upon a commercial batter evaluation." Read more

    53 customers mention3 positive50 negative

    Customers are not happy with the heat produced by the electric circuit testing device. They mention that it gets hot, and creates light heat and smoke. Customers also say that it starts heating up pretty quickly.

    "...Gets pretty hot" Read more

    "...Yes, it gets hot during testing. That is how it applies a load to your battery, by using an internal heating element." Read more

    "...This does generate heat. Which is why they have the less than 10 second warning on load testing. So one doesn’t completely fry the unit...." Read more

    "...Gets hot and dime smoke may come out of the Unit, but this Is normal. Just be carefull from which área you grab it while in use." Read more

    49 customers mention0 positive49 negative

    Customers are dissatisfied with the smell of the electric circuit testing device. They mention that it does smoke a bit when first used, and this is from the oil that is on the load element within the case. They also say that the instructions say it will smoke on first few uses as it burns.

    "...Gets hot and dime smoke may come out of the Unit, but this Is normal. Just be carefull from which área you grab it while in use." Read more

    "...there are vent holes because the housing does get hot and smoke does come out if you switch the load on for the whole 10 seconds...." Read more

    "...Yes, it did smoke on the 1st use and it gets very hot...." Read more

    "...It will smoke when new, it will also smoke after sitting for a while, it will get very hot to touch, this is all normal. This tester is accurate...." Read more

    12 Volts battery test
    5 Stars
    12 Volts battery test
    Good product. Done 2 test for my car's 12 volts battery. CCA and charging.
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    Top reviews from the United States

    Amazon Customer
    5.0 out of 5 stars Good Product
    Reviewed in the United States on March 25, 2024
    Verified Purchase
    The battery tester is well made and easy to use It should give years of reliable use
    Helpful
     Report
    Amazon Customer
    5.0 out of 5 stars Very Good Product
    Reviewed in the United States on April 28, 2024
    Verified Purchase
    It works exactly as advertised. What more could one ask for from a tester?
    Helpful
     Report
    Horsemom39
    5.0 out of 5 stars Works as it should
    Reviewed in the United States on April 14, 2024
    Verified Purchase
    This battery tester works as it should. Easy to read, appears to be accurate.
    Helpful
     Report
    Gerald
    4.0 out of 5 stars Good product for the money.
    Reviewed in the United States on April 20, 2024
    Verified Purchase
    Works as advertised worth the money. Gerald K.
    Helpful
     Report
    Adam Smith
    5.0 out of 5 stars Works as should.
    Reviewed in the United States on April 27, 2024
    Verified Purchase
    Built very well. Very durable. Works great.
    Helpful
     Report
    james
    5.0 out of 5 stars works good
    Reviewed in the United States on April 18, 2024
    Verified Purchase
    would buy again
    Helpful
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    Curt H
    5.0 out of 5 stars Simple, rugged and reliable
    Reviewed in the United States on April 29, 2024
    Verified Purchase
    Heavy duty cables so they don’t affect the test, analog scale is pretty simple to read. Doing a load/current test provides a much better evaluation of a battery vs just voltage and the specific gravity of the electrolyte. I’m restoring 6v golf cart batteries that were neglected for about a year. A voltmeter and hydrometer gives you certain info but the load test is what really tells you if the battery will deliver sufficient power or not.
    Helpful
     Report
    Christine D.
    5.0 out of 5 stars sturdy
    Reviewed in the United States on April 15, 2024
    Verified Purchase
    Happy with this. It's made out of metal.
    Helpful
     Report

    Top reviews from other countries

    Translate all reviews to English
    Buena calidad al tacto y a la vista
    5.0 out of 5 stars Excelente!
    Reviewed in Mexico on April 22, 2024
    Verified Purchase
    Excelente, tuve uno genérico pero la verdad lo regrese porque no funciono y este es súper preciso y a muy buen precio se los recomiendo! A+
    Report
    K. W. Ellis
    5.0 out of 5 stars Very Good
    Reviewed in the United Kingdom on August 13, 2021
    Verified Purchase
    Very Good easy to use almost self explanatory.
    Report
    jinu
    5.0 out of 5 stars Soji
    Reviewed in India on September 12, 2018
    Verified Purchase
    Good
    Report
    Nate
    5.0 out of 5 stars Robust and Simple to Use
    Reviewed in Australia on December 9, 2020
    Verified Purchase
    I have many batteries at home for bikes cars camping and boat. I have used a similar style of tester for many years as a truck mechanic and are a fantastic product. I had a cheap digital tester but this didn't last two years. Avoid the digital and buy this mechanical style and it will give you years or service.
    Report
    Eno
    5.0 out of 5 stars Good thing they mention the unit will smoke the first ...
    Reviewed in Canada on February 4, 2016
    Verified Purchase
    Good thing they mention the unit will smoke the first couple of times you use it- that sucker gets HOT! But as they say, perfectly normal. It does what it's supposed to do and is easy to use. Good quality construction and arrived really quickly. A great tool to have around and that you can lend out to your friends if they need it.
    Report