Sony LIP1522-2J DualShock 4 Controller Compatible Battery 3.7V 1800mAh

Sony DualShock 4 CUH-ZCT2H Series — 3.7V Li-ion Replacement Battery (LIP1522-2J)

This is a 3.7V, 1800mAh Li-ion cell built to the LIP1522-2J spec used in Sony DualShock 4 wireless controllers. It fits the CUH-ZCT2H, CUH-ZCT2J, CUH-ZCT2J11, CUH-ZCT2J12, and nine additional CUH-ZCT2 variants. Dimensions are 51.40 × 34.00 × 9.20mm — measure your bay before ordering if you are unsure of your revision.

• CUH-ZCT2 series fit: Every controller in this family runs the same 3.7V single-cell architecture with an identical connector pinout and BMS handshake, so one cell covers all listed models without modification.
• Bench tested on actual hardware: We cycled this cell in a CUH-ZCT2H unit under simultaneous wireless and dual-rumble load. The BMS held charge acceptance correctly and cutoff triggered at the expected low-voltage threshold without a spurious disconnect.
• First-session calibration: After installing, play one full wireless session to automatic cutoff before plugging in the USB cable. The DualShock 4 fuel gauge IC sets its empty reference point on the first full discharge — skipping this leaves the indicator reading inaccurate for weeks.

Why the DualShock 4 cuts out before the battery indicator hits empty

The CUH-ZCT2H draws current from two sources simultaneously: the wireless radio and up to two rumble motors. That combined spike can pull the cell voltage below the BMS cutoff threshold even when the fuel gauge still shows one or two bars. An aged or freshly installed cell has higher internal resistance, which amplifies the voltage sag under that peak load. The controller reads this transient dip as a hard fault and drops the wireless link before the gauge catches up. Running a calibration cycle lowers internal resistance slightly and lets the BMS and fuel gauge align on the same discharge curve.

Battery percentage jumping around after swapping the cell

The DualShock 4 uses a fuel gauge IC that tracks charge by integrating current over time against a stored discharge curve. When a new cell goes in, the IC still references the old cell's curve, so the percentage can jump 20–30 points mid-session or drop suddenly near full. This is not a faulty cell — it is the IC recalibrating. Run three to five complete discharge-and-charge cycles and the gauge will lock onto the new cell's actual curve. After cycle five, readings should stabilise within a few percentage points of real capacity.