Foxwell BT705
A sturdy 12 V and 24 V tester with a cable long enough to run the starter test alone, and a longer warranty than most.
Amazon $106.99$106.99
Conductance (digital)100-2,000 CCA12/24 V
3.5/5
A simple 12 V tester for home garages, with a long cable for running the starter test without a helper.
- Conductance (digital)Type
- 100-2,000 CCARange
- 12 VSystems
- Starter + chargingSystem tests
Check price at Amazon$69.99
Price checked November 9, 2026. As an Amazon Associate we earn from qualifying purchases.
Pros
- 6.5 ft cable lets you start the engine and watch the result yourself
- Clear Good, Recharge or Replace verdict on a color screen
Cons
- 12 V only and not for lithium
- Listing publishes no warranty term
How it scores
The rating comes from 5 measured or published factors, each scored 0-100 against fixed reference points for its type. How we rank explains each one.
Specifications
| Model number | BT301 |
|---|---|
| Testing | |
| Type | Conductance (digital) |
| Battery voltages | 12 V |
| System voltages | 12 V |
| Rating range | 100-2,000 CCA |
| Battery types | Flooded, AGM flat plate, AGM spiral, EFB, gel |
| Lithium batteries | No |
| Starter test | Yes |
| Charging system test | Yes |
| Features | |
| Display | 2.8 in color LCD |
| Cable length | 6.5 ft |
Alternatives in this type
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
Conductance (digital)100-2,000 CCA12 V
Clore Solar BA9
A basic, low-cost 12 V tester from the maker of the Solar shop line, for cars with ordinary batteries.
Amazon $60.92$60.92
Conductance (digital)40-1,200 CCA12 V
Compare
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