FOXWELL BT705 Car Battery Tester 12V 24V, Automotive 100-2000CCA Battery Load Tester Analyzer, Digital Cold Cranking Charging System Alternator Tester for Heavy Duty Truck Boat Marine SUV ATV
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FOXWELL BT705 Car Battery Tester 12V 24V, Automotive 100-2000CCA Battery Load Tester Analyzer, Digital Cold Cranking Charging System Alternator Tester for Heavy Duty Truck Boat Marine SUV ATV

4.5/5
Product ID: 25742446
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Details

  • Brand
    FOXWELL
  • Power Source
    Corded
  • Style
    2.8" LCD
  • Color
    BT705 auto
  • Item Weight
    325 Grams
📊99.9% accuracy with advanced conductance tech
📏100-2000 CCA battery range
🔋12V & 24V dual voltage support

Description

🔧 Don’t just test—master your vehicle’s power like a pro!

  • PRO LEVEL PRECISION - Experience near-perfect 99.9% accuracy for all battery types including flooded, AGM, spiral, and GEL.
  • USER FRIENDLY DESIGN - 2.8" backlit LCD and 5.9ft cable ensure effortless readings and flexible testing anywhere, anytime.
  • VERSATILE VOLTAGE COMPATIBILITY - Seamlessly test both 12V and 24V systems—perfect for cars, trucks, boats, and heavy-duty machinery.
  • ALL IN ONE DIAGNOSTIC POWERHOUSE - Beyond batteries—diagnose starters and charging systems with no app needed, backed by 14+ years of automotive expertise.
  • COMPREHENSIVE BATTERY HEALTH INSIGHTS - Instantly assess SOH, SOC, cranking voltage/time, and alternator output to avoid unexpected breakdowns.

The FOXWELL BT705 is a professional-grade digital battery and alternator tester supporting 12V and 24V systems with 99.9% accuracy. It covers a wide CCA range (100-2000), compatible with multiple battery types, and provides detailed diagnostics including SOH, SOC, cranking tests, and charging system analysis. Featuring a clear 2.8" backlit LCD and long cable for ease of use, it’s designed for mechanics, DIYers, and heavy-duty vehicle operators seeking reliable, comprehensive battery health insights.

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Specifications

BrandFOXWELL
Power SourceCorded Electric
Style2.8" LCD Screen Digtal Battery Tester
ColorBT705 auto battery load alternator testers
Item Weight325 Grams
Item dimensions L x W x H13 x 3.2 x 9.1 inches
Min. Operating Voltage12 Volts
Specification MetCca
Measurement TypeMultimeter
Maximum Operating Voltage24 Volts
UPC733810029519 712321437501
ManufacturerFOXWELL
Global Trade Identification Number00712321437501
ModelBT705 battery tester
Item Weight11.5 ounces
Product Dimensions13 x 3.2 x 9.1 inches
Item model numberBT705
Is Discontinued By ManufacturerNo
Manufacturer Part NumberBT705

Have a Question? See What Others Asked

If i had a battery that was in good condition, but simply needed a charge, what would the unit tell me? Would it say good or bad?
Can you test 12 volt deep cycle batteries?
Does the bt705 test 6 volt batteries? the instruction manual online says "developed to test 6v & 12v batteries", description here says it does not?
Please let me if this equipment have any limitations in quatity of batteries per day that could test and analyze without damaging it's self.

Reviews

4.5

All from verified purchases

J**M

Worth Every Penny!

The Foxwell BT 705 Battery Tester is one of the best options for DIY mechanics or professionals. It boots up quickly, provides accurate results, and the extra length of the heavy duty cables allow you to bring the unit inside the vehicle for alternator and starter testing. The heavy duty carrying case is an added bonus that protects your investment. This unit recently helped me diagnose a bad battery and ensure my alternator and started were functioning properly. I would not hesitate to recommend this excellent product to anyone. Testing the battery, started, and alternator before a long road trip gives peace of mind. I wish that I had purchased this sooner.

M**C

Starting test and load test can be done by one person sitting in their vehicle.

Great battery tester, so far. I was using a volt ohm meter and an older battery tester, load tester and voltmeter combo.The BT-705 battery analyzer is a perfect replacement. The tester is compact, solidly built and easy to use. I love that it also analyzes the alternator. The long cable allows the operator to test with the meter inside your vehicle. One person testing, no need for help. Great price for an excellent battery analyzer and super fast shipping. Also, the BT-705 comes in a very nice storage case. Don't delay, buy today.

E**N

A must have to check batteries and charging systems

I have used this many times since I bought this and it has worked great! It saved me from having to replace alternators because it would test the cranking amps as well as the system charging system. Really handy to have instead of taking your suspect battery to the store to have it checked…

M**L

Almost 5 Stars

Let me begin by saying I'm a DIYer. There are so many battery anylizers and testers available it begs the question which one to pick. Below is my list of Pros and Cons for this tester are:Pros:1 - The tester itself feels like its made of good quality materials.2 - Its larger and gives you the industrial feel.3 - The buttons are easy to work and the software is easy to follow.4 - The length of the test leads is awesome.5 - The storage case is durable and will protect the tester foreverCons:1 - The bluetooth printer feature only connects to the foxwell printer. (I assumed it would connect to any bluetooth printer)2 - It only stores that last test. I have read that other testers will store the last 50 to 100 tests. This would've been nice.3 - The price is a little high for what you are getting compared to the others on the market. I dont think the extra lead length and the case are worth double the price.Testing Experience:1st test - my first test was on a car that is only driven for short trips and the battery is less than six months old. I expected the results to be that the battery needs to be charged. The tester reported the battery as bad and needed to be replaced. I charged the battery for the day and tested again. The tester changed its mind and said it was a good battery, the cranking was good and the charging system was good.2nd test - this test was completed on my daily commuter car. The test results were good battery needs to be charged . I had no expectations for this battery. I looked to be original, so it could've gone either way.3rd test - this test was completed on a marine battery (Engine Battery) that has been hooked up to a battery tender all winter. The test results returned a good battery4th test - this test was completed on another marine battery (House Battery) that has been on a battery tender all winter. This battery is rated for 600 CCA. The tester reported a good battery that measured 900 CCA. I'm not sure how this can be or if its safe or if the tester is wrong.If this could've printed to any bluetooth printer and if it could store more than just the last test i would've given it 5 stars. I have learned of some inconvenient work arounds for the cons that will work with any of the battery testers on the market. The only reason i gave it 4 stars is because of the length of the test leads. The length of the test leads is with a full start by themselves. The leads allow you to perform the test from the driver seat of the vehicle which is a huge convenience. If this tester only had the short leads like all the others I would've given it 3 stars and purchased a cheaper unit that does the samething.

G**3

Knowledge is power & savings.

Money well spent so much that I am going to get a second one. I saw this used in project farms video where he was trying to salvage old batteries and allowed him to check the overall health of the battery. This did exactly what I needed with no nonsense and relative ease of use. It let me know the health of a battery that was in question which was not in good health at all. As a bonus it confirmed the alternator was putting out good voltage and was healthy. What a relief to know I didn't need to spend almost 400 bucks on an oem alternator for a specific Japanese auto brand and just needed a $200 quality battery to solve the issue.

S**R

Battery tester

Working great testing batteries

Common Questions

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ayesha M.

The product exactly matches the description. Very satisfied with my purchase.

5 days ago

Anjali K.

The product quality is outstanding. Exactly what I needed for my work.

1 month ago

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Imran F.

Very reliable shop with genuine products. Will definitely buy again!

2 weeks ago

Anita G.

Good experience, but the tracking updates could be better.

2 months ago

Foxwell Bt705 Car Battery Tester 12v 24v Automotive 100 2000cca | Desertcart Mauritius