VDIAGTOOL BT300 Car Battery Tester 6V/12V — 5-3000 CCA Load, Cranking & Charging Diagnostics
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Description
xKnow your battery before it dies
Power reliability starts with a quick, accurate check. The VDIAGTOOL BT300 is a portable 6V/12V battery analyzer designed for cars, motorcycles, trucks, SUVs, boats, and more. In seconds, it delivers a clear read on battery health and performance, helping you decide whether to recharge, replace, or schedule maintenance—without waiting for a roadside surprise.
Smart, wide-range testing you can trust
Built to work with nearly every lead-acid battery type (VRLA/SLA, AGM, GEL, LSI) within a 5–3000 CCA range, the BT300 offers precise results across diverse vehicles. Note: lithium batteries and golf cart deep-cycle packs are not supported.
- Voltage, load, and internal resistance are measured to reveal current strength
- Ripple, state of charge (SOC), and state of health (SOH) are analyzed for a complete view
- CCA rating and charging/cranking performance are evaluated in a single test
Cranking and charging tests for peace of mind
Beyond static readings, the BT300 checks whether the starter motor cranks smoothly and whether the alternator delivers proper charging. This helps you anticipate power interruptions and plan maintenance rather than react to failures.
- Fast, actionable feedback based on digital measurements
- Real-time waveform display supports deeper diagnostics when needed
Fast, clear results with helpful visuals
The tester features a 2.8" HD TFT display for crystal-clear readings, while intuitive LED indicators (Green=Good, Yellow=Normal, Red=Poor) guide your next step. An optional print function creates a handy report for records or sharing with a technician.
One tool, many uses
Whether you’re servicing everyday passenger cars, motorcycles, boats, or work trucks, the BT300 adapts to your workflow with simple plug-and-play operation and flexible CCA settings. It’s a practical addition to home garages or professional bays, offering possibilities for proactive maintenance without promising guaranteed outcomes.
FAQ
Q: What batteries can the BT300 test?
A: The BT300 tests 6V/12V lead-acid types, including VRLA/SLA, AGM, GEL, and LSI, within 5–3000 CCA. Lithium and golf cart deep-cycle batteries are not supported.
Q: Can the BT300 test the alternator and starter?
A: Yes. It performs cranking and charging tests to assess starter motor and alternator performance for early issue detection.
Shipping & Return
xReturns Policy
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Shipping
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
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