LG W30 Replacement Battery Q6322 3.85V 3950mAh

LG W30 — 3.85V Li-Polymer Replacement Battery (Q6322)

This is a 3950mAh Li-Polymer cell at 3.85V, built to replace the original Q6322 battery in the LG W30 smartphone. It fits directly into the W30 and restores the device to full operation after the original cell has degraded or failed to hold charge. Capacity is rated at 15.21Wh.

• LG W30 fitment: The W30 uses a specific connector pinout and BMS handshake tied to the Q6322 part number. This cell matches that pinout, voltage rail, and communication protocol so the phone's charge IC accepts it without throwing a battery error.
• Bench tested on actual hardware: We cycled this cell through charge and discharge on the W30 platform. The BMS accepted the cell on first connection, charge IC engaged correctly, and the protection circuit tripped cleanly at low-voltage cutoff with no false shutdowns during the test cycle.
• Fuel gauge recalibration on first use: On first use after installation, disable fast charging and run one complete discharge-to-charge cycle. This lets the fuel gauge IC map the new cell's discharge curve before the charge IC starts pushing high-current fast charge into an uncalibrated cell.

Sudden shutdown at 20–30% on the LG W30 after a cell swap

This happens because the fuel gauge IC is still running the discharge curve it learned from the old, degraded cell. The new cell has a steeper voltage cliff at low charge states, and when the modem or display draws a burst of current, voltage drops below the protection threshold faster than the gauge expects. The phone cuts out even though the reported percentage looks safe. One full discharge and charge cycle — without fast charging — lets the coulomb counter recalibrate to the new cell's actual curve. After that cycle, reported percentages align with real charge state and shutdowns stop.

LG W30 not powering on after the replacement battery sat in storage

Li-Polymer cells self-discharge in storage, and if the Q6322 cell dropped below approximately 2.5V per cell, the BMS enters lockout to prevent damage — the phone will show nothing when you press the power button. Connect the phone to a wired charger and leave it for 15–20 minutes without attempting to power it on. The charge IC will trickle current into the cell until voltage rises above the BMS re-enable threshold, after which normal charging resumes. If the phone still does not respond after 30 minutes on charge, check that the cable is delivering voltage by testing it on another device first.