1. Wprowadzenie
This manual provides detailed instructions for the Shutao 2 Channel 18650 Battery Capacity Tester. This device is designed for comprehensive analysis of 18650 lithium batteries, offering independent charging, discharging, and capacity testing on two channels. It also includes internal resistance measurement capabilities, making it an essential tool for battery management and evaluation.
Główne cechy obejmują:
- Niezależne podwójne kanały: Simultaneously test two batteries without interference.
- Działanie automatyczne: Supports fully automatic charge and discharge cycles (1-9 cycles adjustable).
- Badanie oporu wewnętrznego: Utilizes the DC two-wire method for reference internal resistance values.
- Zabezpieczenia: Overheating protection and automatic power-off with settings saved.
- Flexible Discharge Voltage: 11 selectable stop-discharge voltage levels (2.5V to 3.5V).
- Dual Type-C Power Input: Provides flexible power supply options.

Figure 1: Shutao 2 Channel 18650 Battery Capacity Tester overview.
2. Komponenty produktu i interfejs
Familiarize yourself with the components and interface of the battery capacity tester before operation.

Figure 2: Labeled diagram of the tester's components.
- Power Supply Battery Compartment: Slot for the device's power supply battery.
- Charging Monitoring Indicator: Blue and red indicator light for the power supply battery's charging status. This does not relate to the test channels (8/9).
- Type-C 5V Power Supply Interface: Primary power input for the device.
- "ON/OFF/Menu" Button: Used for powering on/off and navigating menu options.
- "Adjust" Button: Used to cycle through modes and adjust settings.
- "Start/Stop" Button: Initiates or terminates a test cycle.
- Test ② Type-C External Discharge Interface: Secondary Type-C port for external discharge testing.
- Test ① Charging and Discharging 18650 Battery Compartment: Main slot for testing 18650 batteries.
- 1.77 inch Display Screen: Shows real-time test data and settings.
- 10W8ΩJ Discharge Cement Resistance x2: Resistors used for discharge load.
Note: Test ① (8) and Test ② (7) cannot be tested at the same time.

Figure 3: Display interface introduction.
- Real Time Voltage: Wyświetla bieżącą objętośćtage of the battery under test.
- Real Time Current: Shows the current flowing during charge or discharge.
- Moc w czasie rzeczywistym: Indicates the instantaneous power.
- Cumulative Capacity: Total capacity measured (mAh).
- Accumulated Energy: Total energy measured (mWh).
- Wskaźnik statusu: Shows the current operational status (e.g., STA:STOP, STA:CHG, STA:DIS).
- Wzór pracy: Indicates the current mode (e.g., MODE:AUTO, MODE:CHG, MODE:DIS).
- Stop Discharge Voltage: Zestaw voltage at which discharge will stop.
- cykle: Number of completed charge/discharge cycles in AUTO mode.
- Battery Internal Resistance: Reference internal resistance value (mR).
- Czas łączny: Total time elapsed for the current test.
3. Konfiguracja
Follow these steps to set up your battery capacity tester for first use:
- Podłączenie zasilania: Connect the device to a 5V DC power source using a Type-C cable (not included) via the Type-C 5V Power Supply Interface (3).
- Optional Power Supply Battery: For portable use or to power the device itself, insert a compatible battery into the Power Supply Battery Compartment (1). Note that this battery is for device power only and not for testing.
- Battery Insertion for Test:
- For 18650 batteries, insert the battery into the Test ① Charging and Discharging 18650 Battery Compartment (8), ensuring correct polarity.
- For external batteries or devices, connect them to the Test ② Type-C External Discharge Interface (7).
- Włączanie: Press the "ON/OFF/Menu" button (4) to power on the device. The display screen (9) will illuminate.
- Stabilizacja: After installing a battery, wait a few seconds for the voltage and internal resistance readings to stabilize on the display before proceeding with tests.

Figure 4: Battery inserted into the test compartment.
4. Instrukcja obsługi
The tester offers various modes for battery analysis. Use the "ON/OFF/Menu" (4), "Adjust" (5), and "Start/Stop" (6) buttons to navigate and control operations.
4.1. Wybór trybu
Press the "Adjust" button (5) to cycle through the available modes:
- Tryb automatyczny: Performs a full charge-discharge cycle (or multiple cycles) to measure capacity.
- Tryb ŁADOWANIA: Charges the battery to 4.2V.
- Tryb rozładowania: Discharges the battery to a user-selected stop voltage.
4.2. Starting and Stopping Tests
Once a mode is selected and settings are configured (if applicable), press the "Start/Stop" button (6) to begin the test. Press it again to stop the test at any time.
When a test is stopped, a long press of the "Start/Stop" button (6) will reset the on-screen data.
4.3. AUTO Mode Operation
- Insert the battery into the Test ① compartment (8) or connect to Test ② (7).
- Press "Adjust" (5) until "MODE:AUTO" is displayed.
- Use the "ON/OFF/Menu" button (4) to adjust the number of cycles (1-9) and the stop-discharge voltage (2.5V do 3.5V).
- Press "Start/Stop" (6) to begin. The tester will automatically charge, discharge, and recharge the battery for the set number of cycles, displaying cumulative capacity and energy.
- The test will automatically stop when all cycles are completed.
4.4. CHARGE Mode Operation
- Insert the battery into the Test ① compartment (8) or connect to Test ② (7).
- Press "Adjust" (5) until "MODE:CHG" is displayed.
- Press "Start/Stop" (6) to begin charging. The charging voltage is fixed at 4.2V.
- Charging automatically stops when the battery is full.
4.5. DISCHARGE Mode Operation
- Insert the battery into the Test ① compartment (8) or connect to Test ② (7).
- Press "Adjust" (5) until "MODE:DIS" is displayed.
- Use the "ON/OFF/Menu" button (4) to select the desired stop-discharge voltage (2.5V do 3.5V).
- Press "Start/Stop" (6) to begin discharging. The discharge current is fixed at approximately 1A.
- Discharging automatically stops when the battery reaches the set stop voltage.
4.6. Pomiar rezystancji wewnętrznej
The tester provides a reference internal resistance value (mR) using the DC two-wire method. For the most accurate reading, measure when the battery is fully charged. The internal resistance is displayed on the screen (10).
5. Konserwacja
- Czyszczenie: Utrzymuj urządzenie w czystości, bez kurzu i zanieczyszczeń. Do czyszczenia używaj miękkiej, suchej ściereczki.
- Składowanie: Przechowuj tester w chłodnym, suchym miejscu, z dala od bezpośredniego światła słonecznego i ekstremalnych temperatur.
- Obsługiwanie: Aby uniknąć uszkodzeń fizycznych, należy obchodzić się z urządzeniem ostrożnie.
- Zarządzanie ciepłem: The discharge load resistors (10) can get hot during operation. Ensure adequate ventilation and avoid touching them during or immediately after a test. The device includes active cooling and high-temperature protection.
6. Rozwiązywanie Problemów
- Niedokładne odczyty rezystancji wewnętrznej: If internal resistance readings appear high, especially at low battery voltages, try reinstalling the battery or measuring when the battery is fully charged for a more accurate result.
- Urządzenie nie włącza się: Ensure the Type-C power cable is securely connected to a 5V DC power source, or that a charged battery is inserted into the Power Supply Battery Compartment (1).
- Test się nie uruchamia: Verify that a battery is properly inserted with correct polarity and that a test mode has been selected. Press the "Start/Stop" button (6) firmly.
- Brak wyświetlacza: Check power connection. If the device is powered but the screen is blank, try pressing the "ON/OFF/Menu" button (4).
- Problemy ze zgodnością: This tester is not compatible with LiFePO4 batteries. Ensure you are testing compatible lithium-ion batteries (e.g., 18650 flat-top).
- Confusing Channel Operation: Remember that Test ① (18650 compartment) and Test ② (external Type-C) cannot be used simultaneously for testing.
7. Specyfikacje
| Funkcja | Specyfikacja |
|---|---|
| Model | 2 Channel 18650 Battery Capacity Tester |
| Wejście Voltage | DC 5V (przez typ C) |
| Test Channels | 2 (18650 compartment, external Type-C) - not simultaneous |
| Prąd rozładowania | Fixed at ~1A (non-adjustable) |
| Objętość ładowaniatage | Fixed at 4.2V |
| Stop Discharge Voltage | Adjustable (2.5V to 3.5V, 11 levels) |
| Cykle automatyczne | 1-9 cycles adjustable |
| Wyświetlacz | 1.77-calowy wyświetlacz LCD |
| Obsługiwane typy baterii | Flat-top 18650 lithium batteries (not LiFePO4) |
| Funkcje bezpieczeństwa | Overheating protection, automatic power-off |
| Wymiary | Approximately 108mm x 85mm (4.25in x 3.34in) |

Rysunek 5: Wymiary produktu.
8. Gwarancja i wsparcie
This product is manufactured by Shutao. For specific warranty information, please refer to the documentation provided with your purchase or contact the seller directly. General support inquiries can often be resolved by reviewing this manual or contacting the retailer where the product was purchased.
Proszę zachować dowód zakupu na wypadek ewentualnych roszczeń gwarancyjnych.