KONNWEI RC-10 12V/24V Battery Tester with Cranking & Charging System Test

In a busy workshop, a technician grabs the KONNWEI RC-10 to quickly check a customer's battery before winter. This compact tester delivers accurate results in seconds, covering 12V and 24V systems for cars, trucks, boats, and more. No external power needed—it runs directly from the battery under test.

Key specifications

• Supports 12V and 24V batteries (Flooded, AGM Flat Plate, AGM Spiral, GEL, EFB)
• Tests battery health, cranking performance, and charging system output
• Measures CCA from 100 to 2000 according to CCA, BCI, CA, MCA, JIS, DIN, IEC, EN, SAE, GB standards
• Voltage measurement range: 8V to 30V DC
• Backlit LCD display for clear readings in any light
• Reverse polarity protection prevents damage from incorrect connection
• Heavy-duty alligator clamps with 80 cm cable for easy reach
• Internal resistance measurement and ripple voltage test for deeper diagnostics
• Multi-language menu (18 languages including English, German, Spanish, French)
• Operating temperature: -20°C to 50°C (-4°F to 122°F)
• Durable ABS plastic housing

Why choose it

The RC-10 combines professional-grade accuracy with simple operation. It gives you a complete picture of battery and charging system health in one device, helping you avoid misdiagnosis and unnecessary replacements. Its wide test standard support means it works with virtually any vehicle battery on the market.

Ideal use cases

• Auto repair shops and service centers
• Fleet maintenance for trucks, buses, and agricultural machinery
• Marine and RV battery checks
• DIY enthusiasts maintaining multiple vehicles
• Pre-purchase inspections for used cars

Good to know

The tester is powered by the vehicle battery, so no batteries or charging are required. The backlit screen and multi-language interface make it accessible for international teams. Always connect the clamps correctly—the reverse polarity protection will alert you if you don't.