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 Foxwell BT301 rates 3.5 among digital testers ones. The Konnwei KW700 costs $10 less ($59.99 vs $69.99).
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.
Foxwell BT301
A simple 12 V tester for home garages, with a long cable for running the starter test without a helper.
Amazon $69.99$69.99
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 | Foxwell BT301 |
|---|---|---|
| Overall rating | 4.1/5 | 3.5/5 |
| Price 25% | 92 $59.99 | 85 $69.99 |
| 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 | 80 tests the starter, charging system |
| Features or load 20% | 70 built-in printer, color or phone screen, lithium battery testing, app or QR report | 25 color or phone screen, cable of 5 ft or more |
| Warranty 10% | 0 warranty not published, scored as none | 0 warranty not published, scored as none |
Specifications
| Konnwei KW700 | Foxwell BT301 | |
|---|---|---|
| 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 | No |
| Starter test | Yes | Yes |
| Charging system test | Yes | Yes |
| Features | ||
| Display | 2.8 in color LCD | 2.8 in color LCD |
| Built-in printer | Yes | - |
| App or QR report | Yes | - |
| Cable length | - | 6.5 ft |