Universal Digital Battery Tester | Multi-Type Battery Health Checker for AA, AAA, 9V, C, D, N, Button Cells

Never guess your battery life again. The Universal Digital Battery Tester is an indispensable device meticulously selected to offer unmatched reliability and convenience after comparing top models. Designed for everyday users and professionals, this tester accurately checks the health of AA, AAA, 9V, C, D, N, and 1.5V button cell batteries.

Key Features:

• Comprehensive Battery Compatibility: Ideal for testing a wide variety of household and specialty batteries.
• Instant Digital Readout: Get immediate, accurate battery status displayed on an easy-to-read screen.
• No External Power Needed: Operates using the battery under test—no internal battery required.
• Compact Design: Pocket-friendly and perfect for both home and professional use.
• Built to Last: High-quality materials ensure durability and long life.

Key Features of the Tester:

Sliding arm: Allows for contact with different battery sizes.

• Display bar: Indicates battery health
• Blue (GOOD): Battery is in good condition.
• Yellow (WEAK): Battery is usable but weak.
• Red (POOR): Battery is almost dead or unusable.

Voltage guide:

• For 1.5V batteries (AA/AAA/C/D): Check right-side scale.
• For 9V batteries: Check left-side scale.

How to Use:

1. Insert the battery so the positive and negative terminals match the tester’s markings.
2. The needle or digital display will show the voltage level.
3. Check the corresponding zone (GOOD, WEAK, POOR) to determine battery status.