# Battery Capacity Tester, ZB2L3, 1-15V

> ZB2L3 module for testing the real capacity of batteries with a voltage between 1 and 15VDC, via controlled discharge using an external load. Displays voltage, current and mAh consumed during the test. Powered at 5VDC via MicroUSB, current draw

- Page: https://sigmanortec.ro/en/battery-capacity-tester-zb2l3-1-15v
- Price: 22.98 RON
- Availability: In stock; 1-2 zile
- Reference: 9299 · EAN: 5943087685249
- Category: Electronic components > Testing and Measurement
- Specifications: Supply Voltage: 1 VDC; Maximum Input Voltage: 15 VDC
- Package (shipping data): 0.028 kg
- Updated: 2026-09-14
- Shop: [Sigmanortec.ro](https://sigmanortec.ro/en/llms.txt)
- Prices: RON, VAT included; prices and stock as of 2026-10-22 05:21 (Europe/Bucharest)

## Description

The module for testing the real capacity of batteries between 1 and 15V, by controlled discharge with an external load, displays on the display the voltage, current and mAh consumed during the test, simple 5V power supply via MicroUSB, automatically detects the shutdown voltage or allows manual setting from the buttons, supporting discharge current up to 3A.
The module for testing batteries of any type, which have a voltage between 1 and 15VDC. It uses a load ( the discharge resistor is not always included in the package ) such as a resistor to discharge the battery to the desired voltage, counting the actual capacity of the battery (mAh).
The mode is powered exclusively through the MicroUSB port and at the 5VDC voltage.
The module has an automatic detection function of the discharge voltage, but it can also be set manually from the dedicated buttons.
The integrated display will show the battery voltage, the discharge current and the consumed capacity during the discharge of the battery, in intervals.
DO NOT CONNECT THE BATTERY IN REVERSE! RESPECT THE POLARITY MARKED ON THE PLATE!
Specifications:
Supply voltage: 5VDC
Current consumed in operation: <70mA
Battery voltage supported discharge: 1.2 - 15VDC
Discharge termination voltage: 0.5 - 11VDC
Maximum discharge current supported: 3Ah
Discharge current resolution: 0.001A
Measured voltage error margin: 1%
Measured current error margin: 1.5%
Maximum measured battery capacity: 9999Ah
Compatible: Any battery with voltage between 1 and 15VDC
Dimensions mm: 50 x 37mm
Instructions:
1. Connect the fully charged battery according to the diagram on the PCB. Plus to Plus, Minus to Minus. DO NOT CONNECT IN REVERSE!
2. Connect the load used to discharge the battery according to the image below.
3. Power the tester through the MicroUSB plug with 5VDC.
4. When pressing the OK button, the tester will display the estimated discharge voltage. This value can be adjusted manually using the Plus and Minus buttons.
5. Press OK again and the tester will start discharging the battery with the intermittent display of the three measured parameters (battery voltage, discharge current and discharged capacity).
Errors displayed:
Err1 : Battery voltage higher than 15V
Err2 : Battery voltage lower than the set minimum voltage
Err3 : The battery does not support the discharge current or there is too much resistance on the used wires
Err4 : Current higher than the module limit (3A)