$41.15
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$$41.15 () Includes selected options. Includes initial monthly payment and selected options. Details
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Ships from
National Tool Warehouse
Ships from
National Tool Warehouse
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Eligible for Return, Refund or Replacement within 30 days of receipt
Eligible for Return, Refund or Replacement within 30 days of receipt
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Electronic Specialties - 309A Fuse Buddy Mini Kit - Improved,black

4.6 4.6 out of 5 stars 349 ratings
$41.15 with 11 percent savings
List Price: $46.15

The List Price is the suggested retail price of a new product as provided by a manufacturer, supplier, or seller. Except for books, Amazon will display a List Price if the product was purchased by customers on Amazon or offered by other retailers at or above the List Price in at least the past 90 days. List prices may not necessarily reflect the product's prevailing market price.
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Purchase options and add-ons

AC Adapter Current 1 Amps
Brand ES
Item dimensions L x W x H 3 x 1.5 x 1 inches
Color black

About this item

  • New improved adapters allow better accessibility in tightly spaced fuse boxes
  • Tests all three fuse sizes: Micro, Mini & ATO circuits
  • Plug in Fuse Buddy and read circuit amp draws
  • Easy test connection into fused circuits - Includes storage pouch
  • Can be used on circuits up to 30 Amps - resolution 0. 1 Amps
› See more product details
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Frequently bought together

Electronic Specialties - 309A Fuse Buddy Mini Kit - Improved,black
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Get it May 10 - 15
In Stock
Ships from and sold by National Tool Warehouse.
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Product Description

Fuse Buddy Mini Kit plugs directly into the fuse panel. You see circuit amperage up to 30A, very handy for diagnostics and installations.

Product information

Technical Details

Additional Information

Warranty & Support

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Product Warranty: For warranty information about this product, please click here

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What's in the box

  • Fuse Buddy
  • Three adapters
  • Battery
  • Instruction manual
  • Clear storage pouch

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    Price-11% $41.15
    List: $46.15    		$7.99$13.99-19% $7.99
    Typical: $9.86    		-6% $37.31
    List: $39.50    		$8.99
    Delivery
    Get it May 10 - 15
    Get it as soon as Monday, May 13
    Get it as soon as Monday, May 13
    Get it as soon as Monday, May 13
    Get it May 10 - 15
    Get it as soon as Monday, May 13
    Customer Ratings
    4.64.6 out of 5 stars349
    4.54.5 out of 5 stars1,665
    4.64.6 out of 5 stars22,989
    4.44.4 out of 5 stars204
    4.74.7 out of 5 stars200
    4.64.6 out of 5 stars22,989
    Value for money
    4.3
    4.1
    4.6
    4.3
    —
    4.6
    Easy to read
    —
    3.9
    4.3
    4.3
    —
    4.3
    Sold By
    National Tool Warehouse
    BBjinronjy
    Haoyunlai-us
    Lenkkser
    National Tool Warehouse
    Haoyunlai-us
    material
    —
    Zinc
    Plastic, Zinc
    Glass
    —
    Plastic
    voltage
    —
    32 volts
    12 volts
    250 volts
    125 volts
    12 volts
    mounting type
    —
    Through-Hole Mount
    Through-Hole Mount
    Through-Hole Mount
    —
    Through-Hole Mount

    Looking for specific info?

    Customer reviews

    4.6 out of 5 stars
    4.6 out of 5
    349 global ratings

    Customers say

    Customers like the quality, usefulness, and value of the fuse. They mention that it's a great little automotive tool, works great for blown fuses, and is well worth the money.

    AI-generated from the text of customer reviews

    9 customers mention9 positive0 negative

    Customers are satisfied with the quality of the fuse. They mention it's a very handy tool, a great little piece of kit, and a good tool to test circuitry. It comes in handy when diagnosing power issues and makes finding power drain a lot easier.

    "...Comes in handy when diagnosing and issue where fuse keeps blowing, I'm able to see where its peaking and the amperage...." Read more

    "With a slight modification it’s the best tool to find a parasitic drain. Highly recommend. Get a blank fuse holder with wires...." Read more

    "A nice addition to my toolbox" Read more

    "Nice addition to my toolbox. Great to have in my line of work." Read more

    3 customers mention3 positive0 negative

    Customers find the fuse tester very useful when choosing the right size fuse. They say it works like a champ and is well worth the money. Customers also mention that it works great for blown fuses.

    "This is a very useful tool when choosing the right size fuse as well the wire size the only thing is I’m going to have to make a adapter to go to..." Read more

    "This works great for blown fuses and why they break had a chevy aveo where anytime you turn on the left turn signal the turn signal fuse would blow..." Read more

    "Works like a champ and well worth the money. I have used it on several of my vehicles." Read more

    3 customers mention3 positive0 negative

    Customers appreciate the value of the fuse. They say it works well and is well worth the money.

    "...down a battery drain or a blown fuse, this is a nifty, inexpensive little piece of gear that will make life a lot easier." Read more

    "Works like a champ and well worth the money. I have used it on several of my vehicles." Read more

    "This is a very good tool to test circuitry , spent money well worth it ...." Read more

    Top reviews from the United States

    Alex Zitnik
    5.0 out of 5 stars Tests Amp loads
    Reviewed in the United States on September 28, 2023
    Verified Purchase
    Pretty self explaining, let's your view the amp load of the fuse/circuit your testing. Comes in handy when diagnosing and issue where fuse keeps blowing, I'm able to see where its peaking and the amperage. Comes with all the adaptors and even fuses you'll need for most applications.
    2 people found this helpful
    Helpful
     Report
    David Richards
    5.0 out of 5 stars Great Product
    Reviewed in the United States on April 12, 2024
    Verified Purchase
    I haven't used this one yet...however I used another one (older Model) from a friend If anyone has a vehicle that is having electrical drainage problems this is a must have! Great product.
    Helpful
     Report
    Brian B. in MA.
    5.0 out of 5 stars 309A Fuse Buddy Mini Kit works as intended ~$35.00
    Reviewed in the United States on March 28, 2024
    Verified Purchase
    compact, easy to use. the 30 amps makes this better than the multimeters I own. used in the 1-10 amp range and very close to my fluke meter.
    Helpful
     Report
    Elizabeth Shuler
    4.0 out of 5 stars Great little automotive tool.
    Reviewed in the United States on February 16, 2024
    Verified Purchase
    If you are a DIY mechanic, trying to chase down a battery drain or a blown fuse, this is a nifty, inexpensive little piece of gear that will make life a lot easier.
    Helpful
     Report
    Deborah Matousek
    5.0 out of 5 stars Takes the guess work out
    Reviewed in the United States on August 29, 2023
    Verified Purchase
    This is a very useful tool when choosing the right size fuse as well the wire size the only thing is I’m going to have to make a adapter to go to the early style glass fuse but other than that a very useful tool for sure
    3 people found this helpful
    Helpful
     Report
    Jason
    5.0 out of 5 stars Great unit
    Reviewed in the United States on May 17, 2023
    Verified Purchase
    With a slight modification it’s the best tool to find a parasitic drain. Highly recommend. Get a blank fuse holder with wires. Put alligator clips on either end of the in-line fuse holder and disconnect the negative terminal on the battery. Put a clip on the negative side of the battery and the other clip on the negative cable. Plug this unit in and read the amperage pool fuses until the amperage drops and you’ll know the area where the parasitic drain is located.
    9 people found this helpful
    Helpful
     Report
    Josedude
    5.0 out of 5 stars Electronic Specialties 309A Fuse Buddy kit worked well for me
    Reviewed in the United States on July 10, 2023
    Verified Purchase
    The Electronic Specialties 309A Fuse Buddy kit worked very well for me. The battery in my kid’s car was slightly low, and kept discharging. My hold-on current meter indicated starter draw was normal, and the alternator was working once the engine started, but it also indicated a roughly 5 A current draw when everything was off. I pulled out one of my VOMs and it indicated my kid’s car had a 4.8 A current draw on the battery while everything was off. So, now I had to check each fused line to find what was drawing 4.8 A. For this task I purchased the ES 309A Fuse Buddy kit. I was able to check the current on each fused line to track down the current draw. It tuned out that the current draw was not on a fused line, but was drawn by the alternator, which I confirmed by measurement using the Fuse Buddy. So, although the current was not drawn on a fused line, this Fuse Buddy helped in tracking down the culprit. I am very happy with the purchase.
    8 people found this helpful
    Helpful
     Report
    John D and Terry V. Stigall
    4.0 out of 5 stars Using this device to troubleshoot an EGR valve problem
    Reviewed in the United States on August 22, 2023
    Verified Purchase
    I am using this device to troubleshoot a problem with my car’s EGR valve, where the valve shorts out and blows a fuse. I will get baseline current when the valve is not plugged in, then a current reading when the EGR valve is plugged in and the engine is cold, and then when it’s hot.
    4 people found this helpful
    Helpful
     Report

    Top reviews from other countries

    Brad Coons
    5.0 out of 5 stars neat little gadget
    Reviewed in Canada on March 5, 2021
    Verified Purchase
    Have not yet tried it out but if it works as advertised i Am happy
    Report
    Joe Hamilton C Tappin
    5.0 out of 5 stars Exactly what I needed
    Reviewed in Canada on September 30, 2021
    Verified Purchase
    Fault finding circuits on motorcycle
    One person found this helpful
     Report