Lenovo VIBE Z2 BL230 Compatible Battery 3.8V 3000mAh

Lenovo VIBE Z2 Series — 3.8V Li-Polymer Replacement Battery (BL230)

This 3.8V, 3000mAh lithium-polymer cell replaces the OEM BL230 battery in the Lenovo VIBE Z2, VIBE Z2t, and VIBE Z2w smartphones. It matches the original cell's dimensions at 73.22 × 68.20 × 3.60 mm, so it seats correctly in the battery bay. Voltage and capacity figures come directly from the product data, not web estimates.

• VIBE Z2, Z2t, and Z2w compatibility: All three variants share the BL230 footprint, connector pinout, and BMS handshake protocol, which is why a single cell covers the full sub-series without modification.
• Bench tested on actual hardware: We ran this cell through charge and discharge cycles on the VIBE Z2 platform. The BMS accepted the cell without fault flags, and the charge IC reached termination at the correct cutoff voltage without thermal events.
• Fuel gauge recalibration on first use: After fitting this cell, disable fast charging for the first complete discharge-charge cycle. The fuel gauge IC on the VIBE Z2 is calibrated to the old cell's discharge curve — one full cycle at standard current lets it remap against the new cell before high-current charging begins.

Sudden shutdown at 20–30% on the VIBE Z2 after a cell swap

This happens because the fuel gauge IC still holds the coulomb-counter data from the degraded original cell. When the new cell's voltage drops under modem or display load, the phone hits a voltage cliff the gauge didn't predict. The system interprets this as a hard undervoltage fault and shuts down before the displayed percentage reaches zero. One full discharge to 0% followed by an uninterrupted charge to 100% at standard current forces the IC to rebuild its capacity map against the new cell's actual discharge curve.

Phone reports wrong battery percentage after fitting the BL230 replacement

The VIBE Z2 uses a coulomb counter that tracks charge flowing in and out of the cell over time. After a cell swap, that counter still references the capacity model it built on the worn original — so percentage readings jump, stall, or read higher than actual state of charge. The fix is a calibration cycle: drain the phone fully until it powers off, then charge to 100% without interruption using the stock charger. After that cycle, readings stabilise against the new 3000mAh cell's actual discharge profile.