About this replacement
Samsung Galaxy A22 5G — 3.85V Li-Polymer Replacement Battery (SCUD-WT-W1)
This is a 3.85V, 4900mAh Li-Polymer replacement battery for the Samsung Galaxy A22 5G smartphone. It fits SM-A226B, SM-A226B/DS, SM-A226B/DSN, and related variants. Install it when the original cell no longer holds charge through a normal day of use.
- SM-A226B variant coverage: The SM-A226B, SM-A226B/DS, and SM-A226B/DSN share the same battery bay dimensions, connector pinout, and BMS handshake protocol — one cell fits all three. The alternate OEM reference WT-S-W1 maps to the same physical battery.
- Bench tested on actual hardware: We ran this cell through full charge and discharge cycles on SM-A226B hardware. The BMS accepted the cell without fault codes, fast charge negotiation completed on the second cycle, and voltage held steady under simultaneous screen, modem, and GPS load.
- First-cycle fuel gauge reset: After installing this cell, disable fast charging and run one complete discharge-to-charge cycle at standard rate. The fuel gauge IC on the A22 5G calibrates its coulomb counter against the new cell's discharge curve. Skipping this step causes the OS to report inaccurate percentages for the first several days.
Sudden shutdown at 20–30% on the Galaxy A22 5G after a cell swap
This happens because the fuel gauge IC still holds the discharge curve of the old, degraded cell. When the new cell hits a voltage point the IC associates with a hard cutoff on the old curve, the phone shuts down even though actual capacity remains. The fix is a full calibration cycle: drain the phone to automatic shutdown, charge uninterrupted to 100% without fast charging, then repeat once more. After two full cycles the coulomb counter recalibrates and shutdowns at false lows stop.
USB-PD fast charge not recognised on first plug-in after replacement
On first connection after a cell swap, the charge IC on the A22 5G may negotiate only standard 5V/1A instead of fast charge. This occurs because the BMS needs one complete standard-rate charge cycle before it signals readiness to the USB-PD controller. Do not force fast charge on the first cycle. Complete one full charge at standard rate, unplug, and reconnect with the fast charger — the handshake completes correctly at that point and fast charge activates normally.