A professional, easy-to-use battery tester designed for drivers—delivers fast, accurate results to avoid sudden battery failure. Compatible with multiple vehicle types and battery standards.
- Voltage Compatibility: 6V, 12V, 24V
- CCA Range: 100 - 2200 CCA (Supports BCI, CA, MCA, JIS, DIN, IEC, EN, SAE, GB standards)
- Brand: OBDResource | Model: BM550
- Display: 1.8-inch HD backlit screen
- Test Range: 6V/12V/24V
- Connection: Positive/negative alligator clips
- Operating Voltage: 4.9V ~ 32V
- Operating Temperature: -20°C ~ 50°C
- Dimensions: 124Ă—69.6Ă—22.6mm
- Material: Industrial-grade PVC
Suitable for:
- Start batteries & alternators
- Vehicles: Cars, SUVs, pickups, boats, motorcycles, trucks, golf carts & more
- Comprehensive Testing
- Core metrics: SOH (State of Health), SOC (State of Charge), CCA value/rating, voltage (VOL), internal resistance (Ω)
- Remaining battery life displayed as a percentage (%) for easy understanding
- Multiple Safety Protections
- Reverse polarity protection (no damage if clips are reversed)
- Overvoltage, short circuit & spark-proof design for safe operation
- Dual Test Modes
- On-board/off-board testing—no need to remove the battery, get precise results quickly
- Easy to Use
- Plug & play: 3 simple steps (switch battery type → press confirm → enter rated capacity)
- Intuitive operation logic & clear status prompts (beginner-friendly)
- Status Interpretation
- Good: Excellent condition, safe to use
- Fair: Normal condition, can continue using
- Poor: Poor condition, recommend replacement soon
If alligator clips are not firmly clamped, the screen will flash. Re-clamp securely to restore stability (no flashing = proper connection).
1 Ă— OBDResource BM550 Car Battery Tester