

🔧 Diagnose like a pro, drive with confidence!
The TopDiag BT300 Battery Load Tester is a versatile, professional-grade tool designed for quick and precise diagnostics of 12V and 24V automotive batteries and charging systems. Covering a wide range of battery types and standards, it delivers reliable health, charge, and cranking test results in just 10 seconds. With USB-enabled software updates and multilingual support, it’s built for both mechanics and DIY enthusiasts who want to keep their vehicles running flawlessly.
















| ASIN | B0D95HHKYV |
| Best Sellers Rank | #15,435 in Automotive ( See Top 100 in Automotive ) #30 in Battery Testers |
| Brand | TopDiag |
| Brand Name | TopDiag |
| Color | Black |
| Customer Reviews | 4.4 out of 5 stars 570 Reviews |
| Item Weight | 0.36 Kilograms |
| Manufacturer | TopDiag |
| Measurement Type | Voltmeter or Ammeter |
| Min. Operating Voltage | 12 Volts |
| Minimum Operating Voltage | 12 Volts |
| Model | BT300 |
| Power Source | Corded Electric |
| Specification Met | [Jis, En, Din, Sae, Cca, Bci, Gb, Ca, Mca, Iec] |
| Style | BT300 |
| Style Name | BT300 |
N**S
easy to use
It works perfectly for what I need. It's a very useful tool for my workshop.
S**.
Tested and accurate
This product was a gift for Christmas and since they have received the product they have used the product and they love the product they said it works very well and it is accurate.
B**A
For personal use
It isn't able to print the findings , does not have a section on the back to clip the clamps away overall decent tool to have for personal use.
B**G
Best tool 2in1
Excellent tool. Love that you can test battery and use it as a obd2 scanner basically 2 in 1 tool. Love it use it every day as a mechanic. Easy to use small and don’t take up a lot of space. Best value for your money. Speedy delivery
J**A
Good buy
Works awesome. Needed to verify batteries. Especially great for the price
B**B
Good for peace of mind
Was a bit skeptical on which tester to buy, but no issues with this, has saved me from Being stuck out on the water on my Seadoo, apparently the charger wasn’t working and the tester showed me the battery was dead. I plug this thing up every time I leave for the lake to make sure battery is 100% charged.
D**S
Overall it works as designed
Works as designed, gave a 3 because the cables are way to short and it doesn’t have internal batteries makes it hard having to start the test and get in the car to test the alternator.
R**M
Nice little unit
Gets the job done
Trustpilot
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2 weken geleden