# Battery internal resistance tester, 4 wires, RC3563, serial communication

- Page: https://sigmanortec.ro/en/battery-internal-resistance-tester-4-wires-rc3563-serial-communication
- Price: 399.05 RON
- Availability: In stock; 1-2 zile
- Reference: 7754009 · EAN: 5940310759630
- Category: Electronic components > Testing and Measurement
- Package (shipping data): 0.401 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 04:49 (Europe/Bucharest)

## Description

Battery internal resistance and voltage tester, ideal for production, service and cell selection for series packs. Accurately measures using the 4-wire method, displays real-time values on the illuminated LCD screen, connects to a PC via USB for monitoring and data storage, has an internal rechargeable battery and includes probes and a holder for quick testing.
Internal resistance tester for batteries RC3563, is a precise and reliable measuring instrument, intended for the production and maintenance of batteries. It simultaneously measures internal resistance and battery voltage, using a 4 Wire test system to minimize the influence of contact resistance and wire resistance.
The tester reads in real time the internal resistance and the voltage of the measured battery, allowing to find out its state of health. An IR (Internal Resistance) higher than the original one of the battery (manufacturer's date) signals its degradation. The increased internal resistance automatically leads to overheating of the battery both during charging and discharging and to an excessive voltage drop when it is under load.
It is suitable when you want to make a package with several cells in series, it being imperative that the internal resistance of the inserted cells be as close as possible to avoid the package going out of balance.
The tester can be connected to the PC via USB cable and allows the real-time display and storage of information in spreadsheets of IR and Voltage values. Both the software and the driver are available in the Download section.
The LCD screen is monochrome and backlit, making it easy to read even in low ambient lighting conditions. The 4 buttons allow setting the tester.
It has an internal 1000mAh battery, rechargeable via MicroUSB cable with any phone charger capable of 5VDC.
The package includes the tester together with the spring pen type probe, the probe with pliers and the adjustable battery holder that allows the quick insertion and measurement of cells such as 18650.
This tester can also measure the AC resistance of capacitors and the resistance of resistors.
Specifications:
Supply voltage: 5VDC, via MicroUSB cable
Battery: internal
Battery capacity: 1000mAh approx
Material: ABS
Color: Orange or Yellow, may vary
Measurement Speed: 5 measurements/second
Adjustments: Separate correction for resistance and tension
Accuracy Resistance: 0.5%
Accuracy Voltage: 0.5%
Resistance Measurement Range: 0.0001mΩ~200Ω
Voltage Measurement Range: 0.0001V~±100V direct current
Resistance domains: 6 domains, automatic and manual
Voltage domains: 3 domains, automatic and manual
Test Parameters: AC Resistance, DC Voltage
Frequency: AC 1kHz
Current: 50mA at 20mΩ; 5mA at 200mΩ/2Ω; 0.5mA at 20Ω/200Ω
Factory Settings: Restore to factory settings with a single button press
Energy Saving: Automatic shutdown after 10 minutes of inactivity
Display: LCD screen, direct reading
Language: Chinese and English, switchable
Dimensions: 166mm x 80mm x 28mm
Use:
The pen type test probe comes without inserted terminals. They are delivered in a bag and it is necessary to insert them into the tips. Insert all the way, pushing the ends on a flat surface.
Start the tester by long pressing the ENTER button. Set the resistance measurement range by pressing R+ and voltage by V- if necessary (we recommend keeping the tester in automatic mode.
Connect the tester to the battery to be tested using the sample, the clamps or the support, depending on the type chosen.
Perform the measurements and read the results on the large display of the tester. If used connected to a PC, you can read and save the values directly from the computer.
Use the resistance and voltage corrections for adjustments, only if necessary.