Get 99% Accurate Battery Readings
Unlock deep battery diagnostics with a simple Bluetooth OBD2 scanner. VoltChek syncs directly with these devices to give you lab-grade accuracy.
Why Do I Need a Scanner?
Your EV's Battery Management System (BMS) contains detailed health data that isn't visible on your dashboard. An OBD2 scanner acts as a bridge between your vehicle and VoltChek, allowing us to analyze:
Individual cell voltages and temperatures
Actual kWh remaining vs. factory spec
Total charge cycles and degradation history
Disclosure: VoltChek earns a small commission from purchases made through these links at no extra cost to you. We only recommend products we've tested and trust.
Our Recommended Scanners
OBDLink MX+
- Fastest data sync (3x speed)
- Military-grade security
- Works with Tesla & all EVs
- Premium build quality
- Free firmware updates
Best for:
Power users, Tesla owners, and professionals who need reliable, fast diagnostics
Veepeak OBDCheck BLE+
- Easy iOS & Android pairing
- Ultra-low battery drain
- Compact leave-in design
- Reliable Bluetooth 4.0
- Great app compatibility
Best for:
Most EV owners who want accurate readings without breaking the bank
Vgate iCar Pro
- Most affordable option
- Auto-sleep mode
- Compact design
- Good connectivity
- Wide vehicle support
Best for:
First-time buyers and occasional diagnostic checks
Side-by-Side Comparison
| Feature | OBDLink MX+ | Veepeak BLE+ | Vgate iCar Pro |
|---|---|---|---|
| Price | $139 | $39 | $29 |
| Best For | Power Users / Tesla | Most EV Owners | One-time Checks |
| Data Speed | âš¡ Fastest (3x) | Fast | Standard |
| Reliability | ★★★★★ | ★★★★☆ | ★★★☆☆ |
| iPhone Support | |||
| Android Support | |||
| Auto-Sleep Mode | |||
| Leave-In Safe | |||
| Security | Military-Grade | Standard | Standard |
| Free Updates | |||
| Build Quality | Premium | Good | Basic |
| Buy Now | Amazon | Amazon | Amazon |
How to Use with VoltChek
Get a Scanner
Choose one of our recommended OBD2 scanners above
Plug It In
Connect the scanner to your EV's OBD-II port (usually under the dashboard)
Pair & Sync
Connect via Bluetooth and use a compatible app to read your battery data
Submit to VoltChek
Upload your readings for a comprehensive battery health analysis
Frequently Asked Questions
Will these scanners work with my EV?
Yes! All three scanners support the OBD-II standard used by most EVs including Tesla, Nissan, Chevrolet, BMW, Hyundai, Kia, and more. Check your specific vehicle's compatibility before purchasing.
Can I leave the scanner plugged in?
All our recommended scanners feature auto-sleep mode to prevent battery drain. The Veepeak and Vgate are specifically designed for leave-in use with minimal power consumption.
What apps work with these scanners?
Popular apps include Car Scanner, LeafSpy (Nissan Leaf), Scan My Tesla, and ABRP. Each scanner page on Amazon lists compatible apps.
Why is the OBDLink more expensive?
The OBDLink MX+ offers 3x faster data transfer, military-grade security, and premium build quality. It's ideal for professionals or enthusiasts who need the best performance.
Secure Purchase
Buy directly from Amazon with buyer protection
Fast Shipping
Prime delivery available on all products
Easy Returns
30-day Amazon return policy on all items
Don't Have a Scanner Yet?
Try our free battery health estimate first! Get an instant analysis based on your vehicle's make, model, and mileage.
Check My Battery — Free