Give your Samsung Galaxy S21 Ultra extended battery life with our high-quality replacement battery. This OEM-compatible service pack restores your phone’s original power and performance.
✔ 5000mAh Capacity – Matches the original battery’s long-lasting performance
✔ Supports 25W Fast Charging – Quick power-ups without overheating
✔ Pre-Installed Adhesive – Easy installation with included adhesive strips
✔ Grade A Cells – High-quality lithium-ion for safety & durability
✔ Tested & Certified – Meets Samsung’s voltage & charging standards
Compatibility:
• Model: Samsung Galaxy S21 Ultra (SM-G998U, SM-G998W, SM-G9980)
• Battery Type: Li-Polymer (EB-BG998ABY)
Why Choose This Battery?
Unlike cheap knockoffs, this replacement battery for Galaxy S21 Ultra undergoes rigorous testing to ensure:
✓ Stable power output
✓ No swelling risks
✓ 500+ charge cycles
Installation Tips:
• Use a heat gun to soften back adhesive
• Transfer wireless charging coil carefully
• Calibrate by charging to 100% before first use
Warranty:
12-month replacement guarantee – We stand behind our batteries
Compatibility Agreement
Important Notes
Professional Repairs: It’s recommended to have this repair done by a qualified technician, especially if you don’t have experience with Consumer Electronics/gadget disassembly.
⚠️ Warning: You Must Backup Your Data Before Repair Process
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