Topdon BT300P
#2 in With printerFull review
The cheapest way to get printed battery results, for a small shop or a mobile mechanic.
Amazon $99.99$99.99
The Topdon BT300P is the better car battery tester overall, rated 3.7 to 3.5. The Topdon BT300P leads on price. The Topdon BT600 wins on features or load. The Topdon BT300P costs $70 less ($99.99 vs $169.99).
Prices were last checked November 9, 2026. Product prices and availability are accurate as of that date and are subject to change; the price and availability shown on Amazon or the retailer's site at the time of purchase apply. As an Amazon Associate we earn from qualifying purchases.
Topdon BT600
#3 in With printerFull review
A shop-friendly tester with a big screen and a printer, for 12 V batteries and 24 V truck systems.
Amazon $169.99$169.99
Which should you buy?
- Choose the Topdon BT300P for price ($99.99 vs $169.99).
- Choose the Topdon BT600 for features or load (built-in printer, color or phone screen, stored results vs built-in printer, color or phone screen).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every with printer car battery tester; a clear win is highlighted. How we rank explains each one.
| Factor weight | Topdon BT300P | Topdon BT600 |
|---|---|---|
| Overall rating | 3.7/5 | 3.5/5 |
| Price 25% | 70 $99.99 | 47 $169.99 |
| Battery coverage 25% | 80 up to 2,000 CCA, 24 V systems | 80 up to 2,000 CCA, 24 V systems |
| System tests 20% | 80 tests the starter, charging system | 80 tests the starter, charging system |
| Features or load 20% | 40 built-in printer, color or phone screen | 50 built-in printer, color or phone screen, stored results |
| Warranty 10% | 0 warranty not published, scored as none | 0 1-year warranty |
Specifications
| Topdon BT300P | Topdon BT600 | |
|---|---|---|
| Testing | ||
| Type | Conductance (digital) | Conductance (digital) |
| Battery voltages | 12 V | 12 V |
| System voltages | 12/24 V | 12/24 V |
| Rating range | 100-2,000 CCA | 100-2,000 CCA |
| Battery types | Flooded, AGM flat plate, AGM spiral, gel, EFB | Flooded, AGM flat, AGM spiral, gel, EFB |
| Starter test | Yes | Yes |
| Charging system test | Yes | Yes |
| Features | ||
| Display | 2.4 in color LCD | 3.5 in color LCD |
| Built-in printer | Yes | Yes |
| Stores results | - | Yes |
| Cable length | 2.6 ft | - |
| Build | ||
| Warranty | - | 1 year |