I ran VoltProbe against our shop Midtronics unit on twelve batteries — healthy, marginal, and dying. Results matched within 5-10% every time. I keep VoltProbe in my personal truck; customers get the shop unit.
Ralf B.· Verified Buyer
Rated 4.8 Excellent - Trusted By 9,700+
VoltProbe™Car Battery Tester
Know What Your Battery Is Doing Before It Lets You Down
Conductance Testing Beats Store Visits
VoltProbe's conductance engine measures voltage, CCA, and State of Health — matching pro shop tools within 5-10%. No store visit, no bias.
Works With Any 12V Battery
Cars, trucks, motorcycles, RVs, boats — if it runs on a 12V battery, VoltProbe handles it. One tester for every vehicle you own.
GOOD CHARGE REPLACE Zero Guesswork
Results appear on the color LCD in seconds: health %, CCA remaining, and a plain verdict. No raw data to interpret, no second-guessing.
8-Language Interface
Switch between English, Spanish, French, Portuguese, Russian, Chinese, Turkish, or Thai right from the menu. VoltProbe communicates in your language, so nothing gets lost in translation.
What our 9,700+ Customers say
Based On Real and Honest Experiences
I run five work vans and one dead battery costs me two hours and a $120 tow. VoltProbe caught two batteries under 70% SOH before they failed, saving roughly $400 in tows this year. It lives in my tool bag permanently.
Derek W.· Verified Buyer
VoltProbe showed my battery at 61% State of Health while my car still started fine. I swapped it before winter — my neighbor skipped the test and got stranded at 6am. VoltProbe paid for itself that morning.
Marcus T.· Verified Buyer
Frequently Asked Questions
+164 expertsreviewed itYes — VoltProbe works with any 12V vehicle: cars, trucks, motorcycles, RVs, and boats. It supports Flooded, AGM, GEL, and Lithium chemistries. Select your battery type and rated CCA before running the test.
Check the battery label for a stamped CCA number. If the label is gone, look up your OEM spec online or use a 400-600 CCA default — a small variance only affects the CCA estimate, not the pass/fail verdict.
Very accurate and unbiased. Independent tests show VoltProbe results within 5-10% of Midtronics pro units on CCA and State of Health. Unlike a shop test, VoltProbe has no reason to sell you a battery.
No — test it right where it sits. Clip VoltProbe onto the terminals in-vehicle, engine off, and run the test without disconnecting anything. No corrosive terminal contact, no risk to electronics.
VoltProbe draws power from the battery itself. If the battery is fully dead, charge it first and wait 20-30 minutes for voltage to stabilize — a partial charge is enough to get a full conductance result.
Both. VoltProbe runs three tests: battery health (conductance, voltage, CCA, State of Health), a cranking test recording voltage drop at key turn, and a charging system check on your alternator output. It tells you which part to fix.
Yes — cold weather is exactly when accurate testing matters most. Battery capacity drops sharply below freezing. VoltProbe measures State of Health and remaining CCA, catching fade before a cold-morning no-start catches you.
VoltProbe catching this early is the point. A battery's CCA can stay high enough to start your car while overall capacity quietly fades. A 'replace' verdict on a still-starting battery means you can swap it on your schedule, not roadside.
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