The cheapest way to get printed battery results, for a small shop or a mobile mechanic.
Amazon $99.99The Topdon BT300P rates 3.7 among with printer car battery testers; the Topdon BT200 rates 3.6 among digital testers ones. The Topdon BT200 costs $22 less ($77.99 vs $99.99).
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.

A step up from the BT100 for anyone who also works on 24 V trucks or equipment, with a sunlight-readable color screen.
Amazon $77.99Scores side by side
These two sit in different type classes (with printer and digital testers), and each is scored against the reference points for its own class, so a rating says how well each does among its own type peers. How we rank explains each factor.
| Factor weight | Topdon BT300P | Topdon BT200 |
|---|---|---|
| Overall rating | 3.7/5 | 3.6/5 |
| Price 25% | 70 $99.99 | 81 $77.99 |
| 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 | 25 color or phone screen, stored results |
| Warranty 10% | 0 warranty not published, scored as none | 0 1-year warranty |
Specifications
| Topdon BT300P | Topdon BT200 | |
|---|---|---|
| Testing | ||
| Type | Conductance (digital) | Conductance (digital) |
| Battery voltages | 12 V | 12/24 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, gel, EFB, deep cycle |
| Starter test | Yes | Yes |
| Charging system test | Yes | Yes |
| Features | ||
| Display | 2.4 in color LCD | 2.4 in color LCD |
| Built-in printer | Yes | - |
| Stores results | - | Yes |
| Cable length | 2.6 ft | - |
| Build | ||
| Warranty | - | 1 year |