Replacement Battery Specification
- Battery Model: BT-YU02
- Capacity: 3850mAh
- Voltage: 15.4V
- Battery Type: Li-ion
- Cell: Made in China, high quality guarantee
- Color: Black
- Condition: Replacement Battery (100% Brand New, 1-year warranty!)
Replace Part Number
- FB2
- BT-YU02
Compatible Drone Model
- For DJI Mavic 2 Drone
- For DJI Mavic 2 Pro Drone
- For DJI Mavic 2 Zoom Drone
Product Features
- Extended Flight Time: 3850mAh high-capacity intelligent flight battery delivers up to 31 minutes of flight time for extended aerial photography and videography sessions
- Intelligent Battery Management: Built-in smart chip monitors voltage, current, and temperature in real-time, communicating battery status directly to DJI GO 4 app
- Professional-Grade Cells: Premium lithium-ion cells provide stable 15.4V output with excellent discharge characteristics for demanding flight conditions
- Multi-Layer Safety Protection: Advanced protection circuits guard against overcharge, over-discharge, overcurrent, short circuit, and thermal events during flight and charging
- Wide Model Compatibility: Fully compatible with DJI Mavic 2 Pro, Mavic 2 Zoom, and Mavic 2 Enterprise Advanced drones for versatile deployment
- Precision Engineering: Exact OEM specifications ensure perfect fit, secure connection, and reliable power delivery for professional aerial operations
Why Choose This Battery
This premium intelligent flight battery is engineered specifically for DJI Mavic 2 series drones, delivering the extended flight time and reliability that professional aerial photographers, videographers, surveyors, and drone operators demand. Whether you're capturing cinematic footage, conducting aerial inspections, mapping terrain, or performing commercial drone operations, this 3850mAh battery provides the flight duration your missions require.
Built with high-quality lithium-ion cells and sophisticated battery management electronics, this replacement integrates seamlessly with DJI's intelligent flight systems. The smart battery communicates real-time status information including remaining capacity, voltage levels, and cell health directly to your controller and DJI GO 4 app, enabling precise flight planning and safe operation. The 3850mAh capacity supports up to 31 minutes of flight time under optimal conditions, giving you more time in the air to capture the perfect shot or complete your survey work. Each battery undergoes rigorous quality testing including capacity verification, voltage regulation testing, safety circuit validation, and flight performance evaluation.
Backed by a comprehensive 1-year warranty and compatible with DJI Mavic 2 Pro, Zoom, and Enterprise Advanced models, this battery offers exceptional value for professional and enthusiast drone pilots. The precision-molded housing ensures secure mounting and reliable electrical connection, while multi-layer protection circuits safeguard both the battery and your valuable drone during flight operations, charging cycles, and storage. Perfect as a spare battery for extended shooting sessions or as a replacement for aging original batteries.
Note:
This is not a complete list or inclusion of all compatible laptop models. You can open the back of your laptop to check the original battery model. If you have any compatibility questions, please contact us online.The casing is made of durable materials, the mainboard adopts advanced technology, and the battery core is produced with high-quality raw materials to ensure that it will not be damaged after long-term use.
Our products are equipped with multiple protection technologies such as overvoltage, overcurrent, and overcharge to effectively protect the safety of batteries and equipment.
Shipping Methods
| Shipping Methods | Ship To | Est. Delivery Time | Shipping Cost | Taxes & Fees |
|---|---|---|---|---|
| USPS / DHL | United States | 10-15 business days | Free | Free |
| Canada Post | Canada | 10-15 business days | Free | Free |
| Royal Mail / Yodel | United Kingdom | 15-20 business days | Free | Free |
| DHL | Germany | 15-20 business days | Free | Free |
| La Poste | France | 15-20 business days | Free | Free |
| Correios | Mexico/Spain/IT | 15-25 business days | Free | Free |
| Local Carriers | SE Asia / East Asia | 5-10 business days | Free | Free |
| Local Carriers | Rest of Europe | 20-25 business days | From $5.99 | Free |
| Local Carriers | UAE / Saudi Arabia / Israel | 16-20 business days | From $7.99 | Free |
📦 Shipping & Tracking Information
Looking for faster shipping? We offer local warehousing services. Please visit our "Local Delivery" page for items available for immediate dispatch.
1. How to Track Your Package:
Please choose the tracking link that corresponds to your destination:
- Europe & The Americas: 17track.net/en
- The Middle East: mena56.com
- Asia: 17exp.kingtrans.cn
Need Help?
If you cannot find your package on any of the above websites, please contact us immediately.
📧 Email: sales@batterymall.com / info@batterymall.com
📱 WeChat/WhatsApp: (+86) 198 6775 1872 / (+86) 191 2767 3310
🚚 Estimated Delivery Time
(1) Shipping from China:
- To Asia: 5-20 business days
- To North America: 10-15 business days
- To Europe/South America: 15-20 business days
(2) Shipping from Local Warehouses:
- From US Warehouse: 3-5 business days
- From European Warehouse: 2-10 business days
- From Russian Warehouse: 3-5 business days
Please note: Exact arrival times depend on the specific country and customs processing.
⚠️ Tax & Customs Information:
Global product prices include customs duties (some countries require a tax ID). Please refer to the settlement invoice for specific shipping costs. Special handling is required if your package is inspected.
Payment Methods
Paypal

Payments by PayPal, no PayPal account required. Paypal is safe and free for buyers.
PayPal account: Payment@batterymall.com
Account Name: ShenZhen KingSener Science and Technology Co., Ltd
Credit or debit card
VISA, MasterCard, the United States n Express,Maestro & Laser Card, APPLE Pay,etc.
PayPal never shares your financial information with us.
WeChat Pay
Currently only supports QR code payment. Please contact WeChat customer service and go to WeChat App to scan the QR code to complete the payment.
Google Pay
Pay with Google Pay, which is more convenient and faster.
Apple Pay
If you use an Apple device, you can use Apple Pay to pay, which is more convenient and faster.
Bank Transfer
Q&A
Quick FAQ:Laptop Battery Care & Troubleshooting
- How long does a KingSener battery last?2 to 3 years (approx. 500-800 charge cycles) under normal temperatures.
- Laptop says "Battery Not Detected". How to fix?1. Hard Reset: Unplug AC, remove battery, hold power button for 30 seconds.
2. Clean Contacts: Wipe metal connection pins.
3. Reset Drivers: Uninstall battery drivers in Device Manager, then restart.
4. Update BIOS: Ensure motherboard firmware is up to date. - Can I leave my laptop plugged in 24/7?Yes, the built-in TI chip prevents overcharging. Tip: To prevent long-term cell swelling, unplug and drain the battery to 40% twice a month.
- How do I store a laptop battery long-term?Store it at 50% charge in a cool, dry place. Never store at 0% or 100%. Cycle the battery every 3 months to maintain chemical activity.
-
Are KingSener batteries safe?Yes. All batteries feature built-in IC protection against short-circuits, over-voltage, and overheating. Fully CE, FCC, and RoHS certified.