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🔧 Never get stranded—know your battery’s health before it’s too late!
The TopDiag BT300 Battery Load Tester is a professional-grade diagnostic tool designed for 12V and 24V automotive batteries. It supports a wide range of battery types and standards, delivering fast and precise readings of battery health, charge status, and cranking power. Compatible with cars, trucks, boats, and more, it features a user-friendly interface, one-button operation, and USB-enabled software updates to keep your diagnostics cutting-edge.
| ASIN | B0D95HHKYV |
| Best Sellers Rank | #15,275 in Automotive ( See Top 100 in Automotive ) #27 in Battery Testers |
| Brand | TopDiag |
| Brand Name | TopDiag |
| Color | Black |
| Customer Reviews | 4.4 out of 5 stars 549 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.
F**Z
Good Meter
Works as it should. Able to test RV and Marine batteries which don't use CCA.
J**A
Good buy
Works awesome. Needed to verify batteries. Especially great for the price
M**O
Very nice Battery tester and OBD reader.
Very nice battery tester and OBD reader, decent instructions and good to go right out of the box. Nice digital display, easy to read and navigate.
O**N
What a great little gadget!
Works great, you'll need this for returning Costco batteries. Make sure it tests bad before bringing it back.
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.
C**E
Easy to use for a Do It Youself-er
I bought this not for reviews but only because it seemed as easy to use as others but was less costly. The battery was dead in my Ram Truck, so I ran which tests I could. The Battery is an (absorbed glass-mat (AGM) battery). I charged it with a standard battery son the slow charge. he battery struggled to start the truck so I used the "Start Engine feature". The truck started right up. My alternator read normal and the truck started three or four days in a row. I parked it and left it sit for about a week. Dead as a doornail again. I used the new tester to find the battery was at 456% and the amps were at 8. On with the slow charger. Everything reading good again., Then I followed the instructions and did a load test, which was everything electrical running for 3 minutes. Turned the truck off, used the tester and it said "go the the store and buy a new battery dummy. So off to the store I went after using the engine start on the battery and sure enough they ran their tests and said "buy a new battery dummy and so I did. I guess this works. I tried it a couple times and got the same reading. I also tested the battery on my car and it read every thing good, don't got running off to the store wasting you money on a new battery dummy it is in good condition. Thank you BT300 Battery Tester!
Trustpilot
3 weeks ago
1 day ago