Samsung EB-BG781ABY 4500mAh Replacement Battery for Galaxy S20 FE 5G/4G (Li-Ion, 3.86V, 17.37Wh)

If your Samsung Galaxy S20 FE 5G or 4G no longer holds a charge like it used to, this genuine Samsung EB-BG781ABY battery restores dependable all-day power. With a 4500mAh capacity and 17.37Wh energy rating, it matches the original cell's performance, so you can stream, browse, and capture without constantly hunting for a charger.

Who is it for

This internal battery is ideal for anyone whose Galaxy S20 FE has degraded battery health—whether from years of daily use or heavy app loads. It's also a smart choice for repair technicians who need a reliable, OEM-grade replacement part for SM-G781B and SM-G780F models.

Main features

• Authentic Samsung lithium-ion cell with 4500mAh capacity
• Nominal voltage 3.86V and 17.37Wh energy rating for consistent output
• Built-in protection against overcharge, over-discharge, and short circuits
• Rechargeable design for long-term use
• Compatible with Samsung Galaxy S20 FE 5G (SM-G781B) and Galaxy S20 FE 4G (SM-G780F)

Specifications

• Battery type: Lithium-Ion (Li-Ion)
• Capacity: 4500 mAh
• Voltage: 3.86 V
• Energy: 17.37 Wh
• Part number: EB-BG781ABY
• Condition: New
• Installation: Internal (requires opening device)
• Protection: Overcharge, over-discharge, short circuit

Tips

For best results, have the battery installed by a qualified technician using proper tools. After installation, fully charge and discharge the battery a few times to calibrate the power gauge. Avoid exposing the battery to extreme heat or puncturing it.