הקדמה
The ANCEL BT521 is a versatile 3-in-1 device designed for comprehensive 12V lead-acid battery care. It integrates professional charging, accurate testing, and restorative maintenance functions into a single unit. This manual provides detailed instructions for safe and effective operation of the BT521.
זיכערקייַט אינפֿאָרמאַציע
Always prioritize safety when working with batteries and electrical equipment. Failure to follow safety guidelines may result in injury or damage to the device or battery.
- Ensure proper ventilation when charging batteries to prevent gas accumulation.
- טראָגן צונעמען פערזענלעכע פּראַטעקטיוו עקוויפּמענט, אַרייַנגערעכנט אויג שוץ און גלאַווז.
- Avoid sparks or flames near the battery during charging.
- פאַרבינדן די באַטאַרייע קלamps correctly: red to positive (+), black to negative (-). Reverse polarity protection is built-in, but correct connection is always recommended.
- Do not attempt to charge frozen or severely damaged batteries.
- Keep the device away from water and moisture. The BT521 has an IP65 rating for splash resistance, but it is not fully submersible.
- Disconnect the AC power before disconnecting the battery clamps.
פּראָדוקט איבערview
The ANCEL BT521 features an intuitive LCD display and user-friendly controls for easy operation.

שליסל קאַמפּאָונאַנץ:
- ווייַז: LCD screen for real-time feedback and menu navigation.
- טשאַרדזשינג ינדיקאַטאָר ליכט: לייכט זיך בעתן אויפלאָדן.
- שולד ינדיקאַטאָר ליכט: Illuminates if an error occurs.
- Unattended Mode Indicator Light: Indicates the device is in maintenance mode.
- אַרויף שליסל: נאַוויגירט אַרויף אין מעניוז אָדער פאַרגרעסערט ווערטן.
- אַראָפּ שליסל: נאַוויגירט אַראָפּ אין מעניוז אָדער פֿאַרקלענערט ווערטן.
- צוריק שליסל: גייט צוריק צום פריערדיקן עקראַן אדער מבטל אן אקציע.
- OK שליסל: באַשטעטיקט די אויסוואַל אָדער גייט אַרײַן אין אַ מעניו.
- "Fn" Key: Function key for special operations.
- Red (+)/Black (-) Clamps: For connecting to battery terminals.
- מאַכט פּלוג: For connecting to an AC power outlet.
סעטאַפּ
Follow these steps to prepare your ANCEL BT521 for use:
- קאָננעקט באַטערי קלamps: צוטשעפּען די רויט (+) קלamp צום פּאָזיטיוון באַטעריע טערמינאַל און דעם שוואַרצן (-) קלamp to the negative battery terminal. Ensure a secure connection.
- פאַרבינדן צו מאַכט: Plug the device's power plug into a standard AC power outlet. The device will power on automatically.
- ערשטע אויסשטעלונג: The LCD screen will display the main menu or current battery status.

אַפּערייטינג מאָדעס
The ANCEL BT521 offers multiple operating modes for comprehensive battery management.
1. באַטערי טעסט
This mode provides a detailed analysis of your battery's health and performance.
- From the main menu, select 'Battery Test'.
- Follow on-screen prompts to input battery type (e.g., Regular Flooded, AGM, GEL) and CCA rating.
- The device will display results including State of Health (SOH), State of Charge (SOC), Cold Cranking Amps (CCA), internal resistance (R), and voltagE (VOL).
- The display will indicate if the battery is 'Good', 'Good-Recharge', 'Replace', or 'Bad Cell'.

2. 8-StagE סמאַרט טשאַרדזשינג
The BT521 utilizes an advanced 8-stage charging process to safely and efficiently charge 12V lead-acid batteries, even deeply discharged ones (down to 1V).
- Desulfation: Breaks down lead-sulfate crystals.
- ווייך אָנהייב: Gently introduces power to deeply discharged batteries.
- פאַרנעם אָפּצאָל: Charges the battery to approximately 80% capacity.
- אַבזאָרפּשאַן: Charges the battery to 100% at a decreasinג קראַנט.
- אַנאַליזירן: Tests the battery to ensure it holds a charge.
- Repair (Pulse Repair Technology): Actively breaks down sulfate crystals to restore lost capacity and extend battery lifespan.
- שווימען: Maintains the battery at 100% charge without overcharging.
- דויפעק: Provides periodic pulses to keep the battery optimized during long-term connection.

3. Maintenance (Unattended Mode)
Once fully charged, the BT521 automatically switches to an unattended maintenance mode, ensuring your battery remains at an optimal charge level without overcharging.
- The device intelligently monitors the battery and provides small charges as needed.
- Ideal for long-term storage of vehicles or batteries.
- Pulse Repair Technology helps extend battery lifespan by actively reducing sulfation.

4. קראַנקינג טעסט
Evaluates the performance of your vehicle's starting system.
- From the main menu, select 'Cranking Test'.
- Follow on-screen instructions to start the engine.
- The device will measure cranking voltage and time, indicating if the cranking performance is normal.
5. Alternator Test
Checks the charging system of your vehicle to ensure the alternator is functioning correctly.
- From the main menu, select 'Alternator Test'.
- Follow on-screen instructions to rev the engine and turn on/off electrical loads.
- The device will measure loaded and unloaded voltage, and ripple, to determine if the alternator is charging normally.
6. טעמפּעראַטור פאַרגיטיקונג
The BT521 features built-in auto-temperature compensation to optimize charging performance across a wide range of environmental temperatures (-25℃ to 75℃).
- Prevents overcharging in hot conditions and undercharging in cold conditions.
- Ensures optimal battery health and longevity year-round.

וניווערסאַל קאַמפּאַטאַבילאַטי
The ANCEL BT521 is compatible with all 12V lead-acid batteries, making it a versatile tool for various applications.
- Supported battery types include: AGM, GEL, SLA, Flooded, and Deep-Cycle.
- Suitable for use with cars, motorcycles, trucks, boats, ATVs, RVs, lawnmowers, and more.

טראָובלעשאָאָטינג
If you encounter issues with your ANCEL BT521, refer to the following common troubleshooting tips:
- "Check Connection" Error: ענשור די באַטאַרייע קלamps are securely attached to the correct battery terminals (red to positive, black to negative). Clean any corrosion from the terminals.
- קיין אַרויסווייַז/מאַכט: Verify the power plug is securely connected to a live AC outlet. Ensure the battery has at least 1V for the device to power on for testing.
- באַטאַרייע ניט טשאַרדזשינג: Confirm the correct battery type and CCA rating are selected in the device settings. Check for any fault indicators. If the battery is severely damaged or has a bad cell, it may not accept a charge.
- נישט פּינקטלעכע טעסט רעזולטאַטן: Ensure the battery is at a stable temperature and has rested for a period after use or charging before performing a test. Input the correct battery parameters.
ספּעסאַפאַקיישאַנז
| באַשרייַבונג | ווערט |
|---|---|
| סאָרט | ANCEL |
| מאָדעל | BT521 |
| אַרייַנשרייַב וואָלtage | 12 וואלטס |
| רעזולטאַט חלקtage | 12 וואלטס |
| קראַנט רייטינג | 5 Amps |
| פּונקט וואָג | 2.46 פונט |
| פּראָדוקט דימענשאַנז | 7.09 X 11.22 X 3.74 אינטשעס |
אפיציעלע פּראָדוקט ווידיאס
The following videos provide additional guidance and demonstrations for the ANCEL BT521.
ANCEL BT521 | Triple the Power. Single Device.
דער ווידעא גיט אַן איבערבליקview of the ANCEL BT521's 3-in-1 functionality, showcasing its capabilities as a battery charger, tester, and maintainer in a single device.
BT521 Smart Charging
A short demonstration highlighting the smart charging features of the BT521.
Dead Car/Drone Batteries? Ultimate Power Rescue
This video demonstrates the BT521's capability to revive deeply discharged batteries, including those from cars and drones.
וואָראַנטי און שטיצן
For warranty information and customer support, please refer to the documentation included with your product or visit the official ANCEL website. Protection plans are available for purchase separately to extend coverage for your device.





