ZB2L3 18650 Li-ion Lithium Battery Capacity Tester & Lead-Acid Discharge Meter

1. The first test should be a fully charged battery.

2. Connect the battery to be tested positive to positive input, a negative input to the negative, can not be reversed (with load reversal may damage the circuit)! Load connected to the output of the positive and negative output, to work through the tester micro USB power supply (not available desktop or laptop USB powered), then the battery voltage.

3. Direct start test need only one press of the “OK” button, the tester can automatically develop an appropriate termination voltage of the battery full charge voltage, and will start flashing after the test three times. Need to develop artificial termination voltage only when the battery voltage display state by pressing “+” or “-” buttons to modify the termination voltage display beginning with P, behind the representative voltage resolution 0.1V, set up after pressing the “OK “start testing.

4. After the start of the test the tester will control the load of the electronic switch is turned on, the test data shows that the process will release capacity (Ah), current discharge current (A) and battery voltage (V) between the wheel was. When the battery voltage reaches the set cut-off voltage, load control switches off the tester display data stays in capacity (Ah) and above and the corresponding indicator flashes quickly together, now displays the actual capacity of the battery is discharging capacity, about the press “OK” to terminate flashing allows stable data display, press again “OK” button to return to the power-on state can just replace the battery test the next section .

Features

• Smart Dual-Button Navigation: Built with intuitive tactile controls to quickly calibrate cutoff voltages, start discharge test runs, and clear accumulated data logs.

• Auto-Ranging Multi-Value Display: High-visibility LED tube cycling automatically switches between active voltage ($V$), current discharge ($A$), and accumulated capacity ($Ah$).

• Dedicated External Load Protection: Separates error-prone onboard heating by utilizing external high-power ceramic resistors for cool, precise, and stable long-term testing.

• Intelligent Error Code Alerts: Features built-in micro-controller diagnostic codes (Err1 to Err5) to instantly flag battery over-voltage, reverse polarity, or open load connections.

• True Integrated Capacity Logging: Computes real-time discharge performance mathematically using continuous integration metrics rather than inaccurate voltage estimates..

Specifications

• Model Component: ZB2L3 Battery Capacity Discharge Meter.

• Power Supply Input Requirements: Micro-USB Interface (5V DC / 0.5A Minimum).

• Supported Battery Voltage Range: 1.0V DC to 15.0V DC (Resolution: 0.01V).

• Termination Cutoff Voltage Range: 0.5V DC to 11.0V DC.

• Maximum Supported Discharge Current: Up to 3.000A Max (Resolution: 0.001A).

• Maximum Capacity Measurement Range: 9999Ah (Auto-switches decimal position between $Ah$ and $mAh$).

• External Load Hardware Includes: 2 x 5W 7.5 Ohm Ceramic Resistors.

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