Autel MaxiBAS BT506
A good add-on for a shop that already uses Autel wireless scan tools, or anyone who wants test reports on a phone.
Amazon $175$175
The Autel MaxiBAS BT506 is the better car battery tester overall, rated 3.8 to 3.6. The Autel MaxiBAS BT506 leads on battery coverage and features or load. The Topdon BT100 wins on price. The Topdon BT100 costs $121.01 less ($53.99 vs $175).
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 BT100
A low-cost 12 V tester for a car owner who wants to check a battery, starter and alternator at home.
Amazon $53.99$53.99
Which should you buy?
- Choose the Autel MaxiBAS BT506 for battery coverage (up to 2,000 CCA, 6 V batteries, 24 V systems vs up to 2,000 CCA) and features or load (color or phone screen, app or QR report, stored results vs none of the listed features).
- Choose the Topdon BT100 for price ($53.99 vs $175).
Scores side by side
Each factor is scored 0-100 against the same fixed reference points for every digital testers car battery tester; a clear win is highlighted. How we rank explains each one.
| Factor weight | Autel MaxiBAS BT506 | Topdon BT100 |
|---|---|---|
| Overall rating | 3.8/5 | 3.6/5 |
| Price 25% | 46 $175 | 97 $53.99 |
| Battery coverage 25% | 100 up to 2,000 CCA, 6 V batteries, 24 V systems | 60 up to 2,000 CCA |
| System tests 20% | 100 tests the starter, charging system, ripple or diode | 100 tests the starter, charging system, ripple or diode |
| Features or load 20% | 40 color or phone screen, app or QR report, stored results | 0 none of the listed features |
| Warranty 10% | 0 1-year warranty | 0 warranty not published, scored as none |
Specifications
| Autel MaxiBAS BT506 | Topdon BT100 | |
|---|---|---|
| Testing | ||
| Type | Conductance (digital) | Conductance (digital) |
| Battery voltages | 6/12 V | 12 V |
| System voltages | 12/24 V | 12 V |
| Rating range | 100-2,000 CCA | 100-2,000 CCA |
| Battery types | Flooded, AGM, AGM spiral, EFB, gel | Flooded, AGM flat plate, AGM spiral, EFB, gel |
| Rating standards | CCA, SAE, CA, EN, IEC, DIN, JIS, MCA | - |
| Starter test | Yes | Yes |
| Charging system test | Yes | Yes |
| Ripple or diode test | Yes | Yes |
| Features | ||
| Display | Phone app | - |
| App or QR report | Yes | - |
| Stores results | Yes | No |
| Build | ||
| Warranty | 1 year | - |