Konnwei KW700
#1 in With printerFull review
The lowest-priced tester here with a printer, and it handles lithium and 24 V batteries too.
Amazon $59.99$59.99
The Konnwei KW700 rates 4.1 among with printer car battery testers; the Topdon BT100 rates 3.6 among digital testers ones. The Topdon BT100 costs $6 less ($53.99 vs $59.99).
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.
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
Scores 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 | Konnwei KW700 | Topdon BT100 |
|---|---|---|
| Overall rating | 4.1/5 | 3.6/5 |
| Price 25% | 92 $59.99 | 97 $53.99 |
| Battery coverage 25% | 80 up to 2,000 CCA, 24 V systems | 60 up to 2,000 CCA |
| System tests 20% | 80 tests the starter, charging system | 100 tests the starter, charging system, ripple or diode |
| Features or load 20% | 70 built-in printer, color or phone screen, lithium battery testing, app or QR report | 0 none of the listed features |
| Warranty 10% | 0 warranty not published, scored as none | 0 warranty not published, scored as none |
Specifications
| Konnwei KW700 | Topdon BT100 | |
|---|---|---|
| Testing | ||
| Type | Conductance (digital) | Conductance (digital) |
| Battery voltages | 12/24 V | 12 V |
| System voltages | 12/24 V | 12 V |
| Rating range | 10-2,000 CCA | 100-2,000 CCA |
| Battery types | Flooded, AGM, gel, EFB, lithium | Flooded, AGM flat plate, AGM spiral, EFB, gel |
| Lithium batteries | Yes | - |
| Starter test | Yes | Yes |
| Charging system test | Yes | Yes |
| Ripple or diode test | - | Yes |
| Features | ||
| Display | 2.8 in color LCD | - |
| Built-in printer | Yes | - |
| App or QR report | Yes | - |
| Stores results | - | No |