Samsung Omnia i900 Replacement Battery AB653850EZBSTD 3.7V 1200mAh

Samsung Omnia i900 / SCH-i910 — 3.7V Li-ion Replacement Battery (AB653850EZBSTD)

This is a 3.7V, 1200mAh Li-ion replacement battery for the Samsung Omnia i900 and Omnia SCH-i910 smartphones. It also fits the i8000 and Saga i770, sharing the same OEM part numbers AB653850EZBSTD, AB653850EZ, AB663450EZ, and AB653850EB. Install it when the original cell no longer holds enough charge for calls, messaging, and daily app use.

• Omnia i900 / SCH-i910 platform fit: These models share the same battery bay dimensions, 3.7V single-cell architecture, and connector pinout — the replacement slots in without modification or adapter.
• Bench tested on actual hardware: We cycled this cell through full charge and discharge on the Omnia i900 platform. The BMS negotiated correctly with the charge IC, and the protection circuit tripped cleanly at low-voltage cutoff without hanging the OS.
• Fuel gauge recalibration on first use: After installing a new cell, the Omnia's fuel gauge IC is still calibrated to the old cell's discharge curve. On first use, run one complete discharge down to automatic shutdown, then charge uninterrupted to 100% before resuming normal use — this re-anchors the coulomb counter to the new cell.

Sudden shutdown at 20–30% on the Omnia i900

The Omnia i900 draws hard current spikes during active calls and screen-on navigation. If the replacement cell's internal impedance is slightly higher than the original, voltage sags under that load and crosses the BMS low-voltage cutoff — even though the reported percentage looks safe. The phone shuts off not because the cell is empty, but because it cannot sustain voltage under peak draw. One full calibration cycle as described above usually corrects the reported percentage and reduces premature cutoffs.

Phone not powering on after the battery sat in storage

Li-ion cells left uncharged for several months can self-discharge below 2.5V per cell, which triggers BMS lockout — the protection circuit disconnects the cell to prevent damage, and the phone shows no response at all. Connect the phone to a wall charger (not USB from a laptop) and leave it for 15–20 minutes before attempting to power on; the charge IC needs to push a small recovery current through the BMS before the circuit resets. If the battery icon never appears after 30 minutes on wall power, the cell has discharged past recovery and must be replaced.