Motorola Moto G35 5G Replacement Battery QG50 4850mAh

Motorola Moto G35 5G (XT2433-1 / XT2433-2 / XT2433-3) — 3.91V Li-Polymer Replacement Battery (QG50)

This is a 3.91V, 4850mAh (18.96Wh) Li-Polymer cell built to replace the original QG50 battery in the Motorola Moto G35 5G. It fits the XT2433-1, XT2433-2, and XT2433-3 variants. The cell matches the original form factor — 91.20 × 67.00 × 4.20mm — and drops into the existing battery bay without modification.

• XT2433 variant coverage: The XT2433-1, -2, and -3 share the same battery bay dimensions, connector pinout, and BMS handshake protocol. One cell fits all three without any hardware modification.
• Bench tested on actual hardware: We ran this cell through full charge and discharge cycles on the XT2433 platform. The BMS accepted the cell without fault codes, and the charge IC communicated normally with no thermal flags during either phase.
• Fuel gauge recalibration on first cycle: On first use after installation, disable fast charging for one complete discharge-charge cycle. This lets the fuel gauge IC map the new cell's discharge curve before high-current charging pushes load into an uncalibrated counter — it prevents erratic percentage readings in the first week of use.

Sudden shutdown at 20–30% on the Moto G35 5G after a cell swap

This happens when the fuel gauge IC is still calibrated to the old cell's discharge curve. The new cell has a steeper voltage drop under modem and screen load near the bottom of its charge window. The phone's protection circuit reads a voltage that looks critical and shuts down — even though the percentage counter says 20–30%. One full discharge-charge cycle with fast charging disabled forces the coulomb counter to resync to the new cell's actual curve. After that cycle, shutdowns at partial charge typically stop.

USB-PD fast charge not activating on the first cycle after replacement

The Moto G35 5G's charge IC runs a handshake with the BMS before switching from standard 5V charging into the higher-voltage fast charge mode. On a brand-new cell, the BMS may not pass that handshake on the first cycle while it initialises against an uncalibrated coulomb counter. Let the phone complete one full charge at standard rate — the USB-PD negotiation typically succeeds from the second cycle onward. If fast charge still does not activate after two full cycles, check that the charger output sits at or above 9V under load.