RC3563 A02F-5X Battery Voltage & Internal Resistance Tester

RC3563 Battery Voltage & Internal Resistance Tester (A02F-5X)

Meet the A02F-5X RC3563 Battery Voltage & Internal Resistance Tester — a precision-engineered handheld instrument designed for hobbyists, RC enthusiasts, technicians, and anyone who wants accurate, at-a-glance readings on their batteries and resistors. Featuring intelligent control circuitry and a built-in Kalman filter mathematical algorithm, this tester delivers fast, reliable measurements with impressive accuracy in a compact, lightweight form.

Key Features

• Dual Measurement Capability: Simultaneously measures battery voltage and internal resistance, giving you a complete picture of battery health and performance in seconds.
• Kalman Filter Algorithm: Advanced mathematical filtering ensures stable, high-precision readings — even in noisy electrical environments.
• Wide Battery Compatibility: Works with lithium-ion (18650 and other formats), lithium iron phosphate (LiFePO₄), and a broad range of rechargeable battery chemistries.
• AC Resistance Measurement: Also measures the AC resistance of resistors and low-resistance components with high-precision accuracy — versatile beyond battery testing alone.
• Clear LCD Display: Backlit LCD screen displays readings clearly, making it easy to read results at a glance in various lighting conditions.
• Lightweight & Portable: At just 171 × 80 × 29 mm (6.73 × 3.15 × 1.14 in), this tester slips easily into a toolkit, bag, or drawer — always ready when you need it.
• Energy Efficient Design: Intelligent power management keeps battery consumption low, extending the life of the tester's own power source.
• Durable Construction: Housed in a sturdy plastic enclosure built to withstand regular workshop or field use.

Specifications

• Model: A02F-5X / RC3563
• Dimensions: 171 × 80 × 29 mm / 6.73 × 3.15 × 1.14 in
• Display: LCD with backlight
• Measurement: Voltage, Internal Resistance, AC Resistance
• Algorithm: Kalman Filter
• Housing Material: Durable plastic

Who Is This For?

Whether you're an RC vehicle enthusiast sorting through battery packs, a DIY electronics maker, a solar storage system builder, or a professional technician maintaining battery banks, the RC3563 A02F-5X gives you the precise data you need to make informed decisions about your batteries.

Learn More About Battery Safety

For guidelines on safe battery storage, handling, and disposal, visit the U.S. Consumer Product Safety Commission – Battery Safety resource center.

Frequently Asked Questions

Q: What types of batteries can the RC3563 A02F-5X tester measure?

A: The RC3563 A02F-5X battery tester is compatible with a wide range of rechargeable battery chemistries including lithium-ion (such as 18650 cells), lithium iron phosphate (LiFePO₄/Trithium), and other common battery types. It measures both voltage and internal resistance simultaneously, making it ideal for sorting, grading, and evaluating battery condition.

Q: Can this tester measure resistance in components other than batteries?

A: Yes. In addition to battery voltage and internal resistance, the A02F-5X RC3563 can also measure the AC resistance of standard resistors and other low-resistance components with high precision — making it a versatile tool for electronics testing and diagnostics beyond battery applications alone.

Q: What makes the Kalman filter algorithm important in this tester?

A: The Kalman filter is a sophisticated mathematical algorithm that continuously filters out measurement noise and stabilizes readings in real time. In practice, this means your voltage and internal resistance readings are more consistent and accurate compared to testers that rely on simpler averaging methods — especially important when evaluating battery packs where small differences in internal resistance indicate significant differences in battery quality.

Q: What are the dimensions and portability of this tester?

A: The RC3563 A02F-5X measures 171 × 80 × 29 mm (approximately 6.73 × 3.15 × 1.14 inches), making it compact and lightweight enough to carry in a toolkit, backpack, or storage drawer. Its energy-efficient design also means it won't drain its own power source quickly during regular use.