Orange SPV E650 Replacement Battery LIBR160 3.7V 2250mAh

Orange SPV E650 — 3.7V Li-ion Replacement Battery (LIBR160)

This is a 3.7V, 2250mAh Li-ion cell built to fit the Orange SPV E650 Windows Mobile smartphone. It replaces OEM part numbers LIBR160 and 35H00082-00M. If your original cell has degraded to the point where the phone can no longer hold a usable charge, this is a direct swap using the same voltage and connector configuration.

• SPV E650 platform fit: The E650 uses a single-cell 3.7V Li-ion pack with a proprietary connector tied to the device's charge IC. This cell matches that voltage rail and physical footprint — 54.03 x 39.60 x 11.37mm — so the battery seats correctly and communicates with the charge circuit without modification.
• Bench tested on actual hardware: We ran this cell through charge and discharge cycles, confirmed the BMS holds the charge termination voltage at 4.2V, and verified the protection circuit trips correctly under overcurrent conditions. No anomalous heat, no premature cutoff.
• Fuel gauge recalibration on first cycle: After installing this cell, let the phone discharge fully to automatic shutdown before charging back to 100%. The E650's fuel gauge IC was calibrated against the old degraded cell — one complete cycle re-anchors it to the new cell's actual discharge curve.

Why the SPV E650 reports wrong battery percentage after a cell swap

The E650 uses a coulomb-counter-based fuel gauge IC that builds its capacity model over time from observed charge and discharge data. When you fit a new cell, the IC still holds the learned curve from the old, degraded battery. Until it recalibrates, the percentage reading is mapped to the wrong capacity baseline. This causes the phone to report, say, 40% when the cell is actually near full, or to jump abruptly as the IC corrects itself mid-discharge. Run one full uninterrupted discharge to shutdown, then a full charge to 100% — that single cycle gives the IC enough data to re-anchor the gauge accurately.

Sudden shutdown at 20–30% on the replacement cell

This is a voltage cliff issue, not a capacity problem. When the SPV E650 activates the cellular radio or lights the screen at full brightness, current draw spikes sharply. If the fuel gauge IC still reads a stale discharge curve from the old cell, it misjudges how much capacity remains — the cell's actual terminal voltage drops below the BMS cutoff threshold before the reported percentage reaches zero. The phone cuts off abruptly even though the display showed charge remaining. Complete one full discharge-charge cycle after installation — this recalibrates the fuel gauge against the new cell's real voltage-versus-capacity relationship and eliminates the premature cutoff.