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 3.3. The Topdon BT300P leads on price. The Autel MaxiBAS BT608 wins on battery coverage and features or load. The Topdon BT300P costs $349.01 less ($99.99 vs $449).
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 combined battery tester and scan tool for a shop that wants printed reports and code reading in one tablet.
Amazon $449Which should you buy?
- Choose the Topdon BT300P for price ($99.99 vs $449).
- Choose the Autel MaxiBAS BT608 for battery coverage (up to 3,000 CCA, 6 V batteries, 24 V systems vs up to 2,000 CCA, 24 V systems) and features or load (built-in printer, app or QR report, 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 | Autel MaxiBAS BT608 |
|---|---|---|
| Overall rating | 3.7/5 | 3.3/5 |
| Price 25% | 70 $99.99 | 5 $449 |
| Battery coverage 25% | 80 up to 2,000 CCA, 24 V systems | 100 up to 3,000 CCA, 6 V batteries, 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, app or QR report, stored results |
| Warranty 10% | 0 warranty not published, scored as none | 0 1-year warranty |
Specifications
| Topdon BT300P | Autel MaxiBAS BT608 | |
|---|---|---|
| Testing | ||
| Type | Conductance (digital) | Conductance (digital) |
| Battery voltages | 12 V | 6/12 V |
| System voltages | 12/24 V | 12/24 V |
| Rating range | 100-2,000 CCA | 100-3,000 CCA |
| Battery types | Flooded, AGM flat plate, AGM spiral, gel, EFB | Flooded, AGM, AGM spiral, EFB, gel |
| Rating standards | - | CCA, CA, SAE, EN, IEC, DIN, JIS, MCA |
| Starter test | Yes | Yes |
| Charging system test | Yes | Yes |
| Features | ||
| Display | 2.4 in color LCD | - |
| Built-in printer | Yes | Yes |
| App or QR report | - | Yes |
| Stores results | - | Yes |
| Cable length | 2.6 ft | - |
| Build | ||
| Warranty | - | 1 year |
