Premium replacement battery for SAMSUNGsung Galaxy S21 Ultra (SM-G998B / G998U / G998W)

Original model number: EB-BG998ABY - matches OEM specifications exactly

5000 mAh high-capacity with 3.85V voltage for extended all-day performance

Lithium-Polymer technology with no memory effect - charge anytime without waiting for full discharge

Built-in dual IC protection guards against overcharging, overheating, and short circuits

Supports 25W super fast charging and fast wireless charging

Perfect fit with exact dimensions for easy installation

Restores original battery life for calls, messaging, media, gaming, and daily use on this flagship device