Orange Nura TLP031C1 Compatible Battery 3.8V 3100mAh

Orange Nura — 3.8V Li-Polymer Replacement Battery (TLP031C1)

This 3.8V, 3100mAh (11.78Wh) lithium-polymer cell replaces the original TLP031C1 / TLP031C2 battery in the Orange Nura smartphone. It fits the Nura directly — same connector, same footprint at 84.21 × 56.74 × 4.17mm. Swap it when the original cell no longer holds a usable charge through a normal day.

• Orange Nura platform fit: The Nura uses the TLP031C1 and TLP031C2 interchangeably — both share the same 3.8V nominal rail, physical footprint, and flex connector pinout. Either part number seats correctly in the same battery bay without modification.
• Bench tested on actual hardware: We cycled this cell through charge and discharge on the Nura platform. The BMS accepted the cell on first contact, balanced protection tripped correctly at the high-voltage ceiling, and the charge IC held a stable taper current into the full 3100mAh capacity.
• Fuel gauge recalibration on first use: On the first charge after installation, disable fast charging and run one complete discharge-to-charge cycle at standard current. This lets the Nura's fuel gauge IC map its coulomb counter against the new cell's discharge curve before high-current charging begins on an uncalibrated cell.

Sudden shutdown at 20–30% on the Orange Nura after a cell swap

This is a voltage cliff issue, not a capacity fault. Under peak modem or screen load, the new cell's voltage drops faster than the fuel gauge IC expects — the phone reads 25% but the cell is already below the BMS cutoff threshold. The gauge is still running the learned curve from the old, degraded cell. One full discharge-to-charge cycle at standard current resets the coulomb counter and recalibrates the threshold mapping. After that cycle, shutdowns at partial charge typically stop.

USB fast charge not activating on the Nura after battery replacement

The Nura's charge IC performs a handshake with the battery's BMS before stepping up to high-current fast charge. On the very first cycle with a new cell, the IC may not complete that handshake and defaults to standard 5V charging instead. This is not a fault — it resolves after the first full charge cycle at standard current. If fast charge still fails to activate after two full cycles, check that the USB cable supports the required current rating, not just data transfer.