ZB2L3 18650 Li-ion Lithium Battery Capacity Tester


Out of stock

Approx Restocking Date: 25 to 30 Days
SKU: 815906
  1. 18650 Li-ion Battery Capacity Tester.
  2. Can Support Maximum Capacity up to 9999Ah (9999000Mah)
  3. Bright Display to Display The Capacity
  4. Small Size Board.


(Including GST)

Out of stock

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1 Year Warranty
15 Days Warranty
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Brand: Generic
Category: Lipo Voltage Checker

This is ZB2L3 18650 Li-ion Lithium Battery Capacity Tester board, which can measure the capacity of the fully charged battery connected at its inputs it also has 1W resistors that can be used to discharge the battery at the constant current output.

After the capacity test has been completed the capacity of the battery is displayed on the 4 digits 7 segment display, which can also display the current supplied by the batter as well as the battery voltage.

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 .
 Use the resistance of the discharge process, resistive load will seriously heat, please pay attention to safety!
This circuit voltage in order to improve the measurement accuracy, specially designed DC bias, when the terminal displays nothing then a small voltage does not affect the actual measurement, if you are shorting the input terminals (absolute 0V) will show 0
No retail package.
Note: This Product is available in two different variants ( ZB2L3 and HW-586) with the same working. we will ship it randomly.


  1. Maximum support 15V 3A discharged through the discharge voltage and current
  2. Automatically identify and develop appropriate battery termination voltage can also be manually adjusted
  3. Resistance Discharge Process to discharge the battery safely.

Package Includes:

1 x ZB2L3 18650 Li-ion Lithium Battery Capacity Tester

2 x Load Resister

SKU: 815906 Category:
Discharge Voltage

1.00V-15.00V 0.01V resolution

Termination Voltage Range


Maximum Voltage Measurement Error

1% + 0.02V

Maximum Current Measurement Error

1.5% + – 0.008A

Maximum Battery Capacity Range

9999Ah (1Ah = 1000mAh)

Length (mm):


Width (mm):


Height (mm):


Weight (g):


Shipping Weight 0.03 kg
Shipping Dimensions 11 × 7 × 2 cm
15 Days Warranty

This item is covered with a standard warranty of 15 days from the time of delivery against manufacturing defects only. This warranty is given for the benefit of Robu customers from any kind of manufacturing defects. Replacement will be done against manufacturing defects.

What voids warranty:

If the product is subject to misuse, tampering, static discharge, accident, water or fire damage, use of chemicals & soldered or altered in any way.

Questions and answers of the customers

  1. 0 votes
    Q What is err 3 indicate ? answer now
    Asked by sibujacob on August 7, 2023 7:49 am

    Error 3: The battery is unable to withstand the... Read more

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Country Of Origin: China