پیژندنه
The ANCEL BT521 is a versatile automotive tool designed to manage and assess vehicle batteries. It integrates the functions of a battery charger, a battery tester, and a battery maintainer into a single unit. This manual provides detailed instructions for the safe and effective use of your BT521 device, helping you maintain battery health, prevent unexpected issues, and extend battery lifespan.
This bundle also includes a protective case designed to securely store the BT521 unit and its accessories.
د خوندیتوب مهم معلومات
Please read and understand all safety warnings and instructions before operating this device. Failure to do so may result in electric shock, fire, serious injury, or property damage.
- د بیټرۍ سره د کار کولو پر مهال تل د سترګو محافظتي او محافظتي جامې واغوندئ.
- ډاډ ترلاسه کړئ چې د کار ساحه ښه هوا لري.
- ماشومان او غیر مجاز کسان د کار له ساحې لرې وساتئ.
- Never smoke or allow sparks or flames in the vicinity of a battery.
- Avoid dropping metal tools onto the battery. This could cause a spark or short-circuit the battery or other electrical parts, which may cause an explosion.
- If battery acid contacts skin or clothing, wash immediately with soap and water. If acid enters the eye, flush immediately with cold running water for at least 10 minutes and seek medical attention.
- Do not use the charger if cables or clamps زیانمن شوي دي.
- Disconnect the AC power before connecting or disconnecting the battery clamps.
- This device is designed for 12V lead-acid batteries only. Do not use it for charging dry-cell batteries that are commonly used with home appliances. These batteries may burst and cause injury to persons and damage to property.
د بسته محتويات
Upon opening your ANCEL BT521 bundle, please verify that all items listed below are present and in good condition:
- ANCEL BT521 3-in-1 Battery Charger, Tester, and Maintainer Unit
- بیټرۍ Clamps (سور او تور)
- د AC بریښنا کیبل
- د محافظتي ذخیرې قضیه
- د کارونکي لارښود (دا لاسوند)

Image: The ANCEL BT521 unit with its included battery clamps, AC power cable, and the protective storage case.
محصول پای ته ورسیدview
The ANCEL BT521 features an intuitive interface with a clear display and control buttons for easy operation. Key components include:
- د LCD نندارې: Shows menu options, test results, and charging status.
- د کنټرول تڼۍ:
- پورته/ښکته تیرونه: د مینو اختیارونو له لارې حرکت وکړئ.
- د OK تtonۍ: انتخاب تایید کړئ.
- د Fn (فعالیت) تڼۍ: Access special functions or return to previous menu.
- Return/Back Button: بیرته پخواني سکرین ته لاړشئ.
- د LED شاخصونه:
- 8-STEP Charge: Illuminates during the 8-stagد چارج کولو پروسه.
- چارج: Indicates active charging.
- تېروتنه: Indicates an error or issue.
- Unattended Mode: Indicates the device is in maintenance/trickle charge mode.
- بیټرۍ Clamps: سره د مثبت (+) لپاره، تور د منفي (-) لپاره.
- د AC بریښنا داخلول: د معیاري دیوال سایټ سره د نښلولو لپاره.

Image: The ANCEL BT521 unit showing its main menu on the LCD display, along with the control buttons and LED indicators.
تنظیم او ابتدايي اړیکه
- بیټرۍ چمتو کړئ: ډاډ ترلاسه کړئ چې د بیټرۍ ټرمینلونه پاک او له زنګ وهلو څخه پاک دي. که اړتیا وي، د تار برش او د بیکینګ سوډا محلول سره یې پاک کړئ.
- د بیټرۍ Cl سره وصل کړئamps:
- سره وصل کړئ سور مثبت (+) clamp مثبت (+) د بیټرۍ ترمینل ته.
- سره وصل کړئ تور منفي (-) clamp منفي (-) د بیټرۍ ترمینل ته.
- خوندي پیوستون ډاډمن کړئ.
- د بریښنا سره نښلول: Plug the AC power cable into a standard 120V AC wall outlet. The BT521 unit will power on and display the main menu.
- Vehicle Connection (if applicable): If connecting to a battery still installed in a vehicle, ensure the vehicle's ignition is off and all accessories are turned off. For negative-grounded vehicles, connect the positive clamp to the positive battery terminal first, then the negative clamp to the vehicle chassis away from the battery. For positive-grounded vehicles, reverse the procedure.
Warning: Incorrect polarity connection can damage the device, battery, or vehicle. Always double-check connections before plugging into AC power.
عملیاتي لارښوونې
Once connected and powered on, the BT521 will display the main menu. Use the Up/Down arrow buttons to navigate and the OK button to select an option.
1. د چارج کولو طریقې
The BT521 offers both quick and standard charging options, utilizing an advanced 8-stage charging process to optimize battery health and longevity.
- چټک چارج کول: Provides a faster charge for batteries requiring a quicker boost.
- معیاري چارج کول: A more gradual charge suitable for regular battery maintenance and full restoration.
د 8-stage charging process includes phases such as desulphation, soft start, bulk charge, absorption, analysis, repair mode, float charge, and pulse. This intelligent process ensures efficient charging, reduces battery wear, and can restore depleted or sulfated batteries.

Image: A graphical representation of the ANCEL BT521's 8-step smart charging process, showing voltage and current curves through different stages like desulphation, bulk, absorption, and float.
2. د بیټرۍ ازموینه
The BT521 can perform various tests to assess the health and performance of your battery and related systems.
- د بیټرۍ ازموینه: Evaluates the battery's overall health, charge level, internal resistance, and rated Cold Cranking Amps (CCA). The display will show results like "Good Battery," "Bad Battery," or "Replace."
- کرینکینګ ازموینه: Measures the battery's ability to deliver current during engine start-up. It assesses the cranking voltage او وخت.
- د بدیل ازموینه: Checks the vehicle's charging system, including loaded voltage، پورته شوی حجمtage، او د څپو حجمtage, to ensure the alternator is functioning correctly.

Image: The ANCEL BT521 connected to a car battery, displaying battery test results (Health, Charge, Internal Resistance, Rated CCA) and alternator test results (Loaded, Unloaded, Ripple).
د ساتنې حالت
The Maintenance Mode (also known as trickle charging or unattended mode) is designed to keep your battery in optimal condition, especially during periods of storage or infrequent use. This mode prevents overcharging, self-discharge, and sulfation, which are common causes of battery degradation.
When activated, the BT521 intelligently monitors the battery and delivers a low, consistent charge to maintain its voltage level. This can significantly extend battery life by up to 50%, reduce the frequency of replacements, and lower long-term maintenance costs.
It is recommended to use this mode for vehicles stored for extended periods (e.g., seasonal vehicles, motorcycles, boats) to ensure they are always ready for use. Charging your battery at least once a year, even if not in storage, can improve its performance and longevity.

Image: A visual representation demonstrating how the maintenance mode can improve battery health, showing an increase from 60% to 90% by preventing de-sulphation and restoring vitality.
د ستونزو حل کول
If you encounter issues while using your ANCEL BT521, please refer to the following common problems and solutions:
| ستونزه | احتمالي لامل | د حل لاره |
|---|---|---|
| وسیله فعاله نه ده. | No AC power, faulty outlet, damaged cable. | Check AC power connection. Test the outlet with another device. Inspect the power cable for damage. |
| "Fault" LED is illuminated. | Incorrect battery connection (reverse polarity), short circuit, battery fault. | Disconnect from AC power. Verify correct clamp connection (Red to +, Black to -). Check battery for severe damage. |
| بیټرۍ چارج نه کوي. | ضعیف کلamp connection, battery too deeply discharged, battery fault. | کل ډاډ ترلاسه کړئamps are securely attached to clean battery terminals. The battery may be beyond recovery if severely discharged or damaged. |
| د ازموینې ناسمې پایلې. | Poor connection, incorrect battery type/CCA input. | کل ډاډ ترلاسه کړئamps are securely attached. Verify the correct battery type and CCA values are entered into the device if prompted. |
If the problem persists after attempting these solutions, please contact ANCEL customer support for further assistance.
مشخصات
- ماډل: ANCEL BT521
- ننوتۍ جلدtage: 100-240V AC، 50/60Hz
- د محصول Voltage: 12V DC
- اوسنی چارج کول: 4.3A - 5A (Smart Charging)
- د بیټرۍ ډولونه: د ۱۲ ولټه لیډ اسید بیټرۍ (WET، MF، CA، EFB، GEL، AGM)
- چارج کول Stages: ۴-سtagد سمارټ چارج کول
- دندې: Battery Charger, Battery Tester, Battery Maintainer
- د حرارت درجه: له 0°C څخه تر 40°C (32°F څخه تر 104°F)
- Storage Case Dimensions: نږدې 7.9 x 5.5 x 2.4 انچه (L x W x H)
د تضمین معلومات
ANCEL products are manufactured to high-quality standards. For specific warranty terms and conditions applicable to your ANCEL BT521, please refer to the warranty card included with your purchase or visit the official ANCEL webسایټ. د تضمین ادعاوو لپاره د پیرود ثبوت وساتئ.
د پیرودونکي ملاتړ
If you have any questions, require technical assistance, or need to report an issue with your ANCEL BT521, please contact ANCEL customer support through the following channels:
- Webسایټ: د ANCEL رسمي دفتر ته مراجعه وکړئ webد FAQs، ملاتړ سرچینو، او اړیکو فورمو لپاره سایټ.
- بریښنالیک: Refer to your product packaging or the ANCEL webد ملاتړ لپاره د وقف شوي بریښنالیک پتې لپاره سایټ.
- تلیفون: Check the ANCEL webد شته تلیفون ملاتړ شمیرو لپاره سایټ.
When contacting support, please have your product model (BT521) and purchase information readily available.





