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 3.0. The Topdon BT300P leads on price and features or load. The Clore Solar BA327 wins on battery coverage. The Topdon BT300P costs $241.22 less ($99.99 vs $341.21).
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 heavy-duty Solar printer tester for shops that see everything from 6 V tractors to 24 V trucks.
Amazon $341.21Which should you buy?
- Choose the Topdon BT300P for price ($99.99 vs $341.21) and features or load (built-in printer, color or phone screen vs built-in printer).
- Choose the Clore Solar BA327 for battery coverage (up to 2,000 CCA, 6 V batteries, 24 V systems vs up to 2,000 CCA, 24 V systems).
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 BA327 |
|---|---|---|
| Overall rating | 3.7/5 | 3.0/5 |
| Price 25% | 70 $99.99 | 17 $341.21 |
| Battery coverage 25% | 80 up to 2,000 CCA, 24 V systems | 100 up to 2,000 CCA, 6 V batteries, 24 V systems |
| 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 BA327 | |
|---|---|---|
| Testing | ||
| Type | Conductance (digital) | Conductance (digital) |
| Battery voltages | 12 V | 6/12 V |
| System voltages | 12/24 V | 6/12/24 V |
| Rating range | 100-2,000 CCA | up to 2,000 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 | - |
| Build | ||
| Warranty | - | 1 year |
