Brand: DELL
Factory Part Number (P/N): BD820
Compatible Models: D820 M4300 D531N M65 D830 D531 M65
Label Capacity: 11.1V-48Wh-4400mAh
Cell Configuration: 6 cells
Real Capacity: 4000mAh
Get premium-quality replacement batteries for your device. Guaranteed safety, power, and performance!
Price Start From 1500 ৳
We Repair Original Laptop Batteries – New Batteries Also Available!
The BD820 is compatible with D820 M4300 D531N M65 D830 D531 M65. We offer top-tier laptop batteries built for reliability and endurance.

High-Performance Laptop Battery Replacement – Reliable Power for Your Device
Looking for a durable and reliable replacement battery for your laptop? Our premium-quality laptop batteries are designed to deliver long-lasting performance, extended battery life, and full compatibility with your device. Whether you’re replacing an old battery or upgrading for better performance, this battery ensures seamless integration and powerful results.
Brand: DELL
Factory Part Number (P/N): BD820
Compatible Models: D820 M4300 D531N M65 D830 D531 M65
Label Capacity: 11.1V-48Wh-4400mAh
Cell Configuration: 6 cells
Real Capacity: 4000mAh
Get premium-quality replacement batteries for your device. Guaranteed safety, power, and performance!
Built with top-grade cells and strict quality control, this battery guarantees safety, stability, and power when you need it most. Ideal for professionals, students, and anyone on the go.
🔋 Why Choose Our Batteries?
- 100% compatible with OEM standards
- Overcharge and short-circuit protection
- Certified for safety and efficiency
- Backed by warranty and customer support
Replace your battery with confidence and restore your laptop’s original performance.