User Manual for ANENG 168Max Battery Tester
Quick guide for the ANENG 168Max Battery Tester. Learn how to test various battery types, interpret voltage readings, and understand battery status indicators for D, C, AA, AAA, 9V, and button cells.
Table of contents
Manual images
Click an image to enlargeQuick Guide
The ANENG 168Max is a portable battery tester designed to measure the voltage of various battery types ranging from 1.2V to 4.8V. It does not require an external power source, as it uses the energy from the battery being tested to operate.
Supported Battery Types
This device is compatible with a wide range of common and lithium batteries, including:
- Standard batteries: D, C, AA, AAA, 9V
- Button batteries: 1.5V, 3V
- Lithium batteries: 16340, 14500, 10440, 18650
How to Use the Tester

- Identify the positive (+) and negative (-) electrodes of the battery you wish to test.
- Align the battery with the measuring port on the tester, ensuring the positive and negative ends match the markings on the device.
- The tester will automatically detect the battery and display the voltage on the screen.
- If no value is displayed, the battery is completely dead.
Interpreting Battery Status
The tester provides a reading to help you determine the health of your battery. The following ranges are general indicators:

- 1.2V Batteries: 1.2V-1.11V (Good), 1.1V-1V (Low), Below 0.9V (Dead).
- 1.5V Batteries: 1.5V-1.28V (Good), 1.27V-1.16V (Low), Below 1.15V (Dead).
- 3V Batteries: 3.3V-2.7V (Good), 2.7V-2.2V (Low), Below 2.2V (Dead).
- 3.7V Batteries: 4.2V-3.7V (Good), 3.6V-3.3V (Low), Below 3.2V (Dead).
- 9V Batteries: 9V-8V (Good), 7.9V-7.1V (Low), Below 7V (Dead).
Important Operating Notes
- No External Power: The device does not require batteries to function; it is powered by the battery under test.
- Polarity: Always ensure the battery is inserted with the correct polarity (positive to positive, negative to negative) before measurement.
- Dead Batteries: If the screen remains blank after inserting the battery, the battery is fully depleted.
Manufacturer information
Aneng
Practical help
Common problems
The battery being tested is completely dead and has no remaining voltage to power the tester.
Ensure the positive and negative electrodes of the battery are making firm contact with the corresponding terminals on the tester.
Before use
- Identify the battery type (D, C, AA, AAA, 9V, button, or lithium).
- Locate the positive (+) and negative (-) ends of the battery.
- Ensure the battery terminals are clean and free of debris.
- Verify the battery fits within the measuring port range (1.2V to 4.8V).
Images and diagrams
- The device features a sliding arm to accommodate different battery lengths.
- The display provides a direct voltage readout.
Model compatibility
- Supports 1.2V to 4.8V range.
- Compatible with D, C, AA, AAA, 9V, button cells, and lithium 16340, 14500, 10440, 18650.
Manual page author
Emily Carter
User documentation editor
Prepares concise manual descriptions and highlights the most useful setup, operation, and maintenance information for readers.