The cheapest way to get printed battery results, for a small shop or a mobile mechanic.
Amazon $99.99The Topdon BT300P is the better car battery tester overall, rated 3.7 to 2.6. The Topdon BT300P leads on battery coverage, price and features or load. The Topdon BT300P costs $130.23 less ($99.99 vs $230.22).
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 shop-built printer tester with replaceable cables, for 12 V cars and light trucks.
Amazon $230.22Which should you buy?
- Choose the Topdon BT300P for battery coverage (up to 2,000 CCA, 24 V systems vs up to 1,400 CCA), price ($99.99 vs $230.22) and features or load (built-in printer, color or phone screen vs built-in printer).
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 | Clore Solar BA227 |
|---|---|---|
| Overall rating | 3.7/5 | 2.6/5 |
| Price 25% | 70 $99.99 | 34 $230.22 |
| Battery coverage 25% | 80 up to 2,000 CCA, 24 V systems | 34 up to 1,400 CCA |
| System tests 20% | 80 tests the starter, charging system | 50 system tests not published (neutral score used) |
| Features or load 20% | 40 built-in printer, color or phone screen | 25 built-in printer |
| Warranty 10% | 0 warranty not published, scored as none | 0 1-year warranty |
Specifications
| Topdon BT300P | Clore Solar BA227 | |
|---|---|---|
| Testing | ||
| Type | Conductance (digital) | Conductance (digital) |
| Battery voltages | 12 V | 12 V |
| System voltages | 12/24 V | 12 V |
| Rating range | 100-2,000 CCA | 100-1,400 CCA |
| Battery types | Flooded, AGM flat plate, AGM spiral, gel, EFB | Conventional, AGM, gel, spiral wound, deep cycle (with a starting rating) |
| Starter test | Yes | - |
| Charging system test | Yes | - |
| Features | ||
| Display | 2.4 in color LCD | - |
| Built-in printer | Yes | Yes |
| Cable length | 2.6 ft | 3 ft |
| Build | ||
| Warranty | - | 1 year |
