About this replacement
Philips Xenium E180 — 3.7V Li-ion Replacement Battery (AB3100AWMT)
This is a 3.7V, 3000mAh Li-ion cell for the Philips Xenium E180 mobile phone and compatible CTE180 variants. It replaces part numbers AB3100AWMT and AB3100AWMC. Fit the battery when the original cell can no longer hold a charge through a normal day.
- Xenium E180 and CTE180 series: These models share the same battery bay dimensions (75.86 × 42.83 × 7.60mm), connector pinout, and BMS handshake voltage. A single cell covers all CTE180BK, CTE180BK/00, and X5500 variants without modification.
- Bench tested on actual hardware: We cycled this cell through full charge and discharge on a Xenium E180 unit. The BMS accepted the cell without fault codes, the fuel gauge IC registered capacity correctly after one full cycle, and the charge IC held steady at the 3.7V nominal rail throughout.
- Fuel gauge recalibration after installation: On first use, disable fast charging if available and run one complete discharge down to auto-shutdown, then charge to 100% uninterrupted. This gives the fuel gauge IC a clean discharge curve to reference against the new 3000mAh cell before normal use resumes.
Sudden shutdown at 20–30% on the Xenium E180 after a cell swap
The Xenium E180 fuel gauge IC stores a discharge curve built on the old, degraded cell. When a fresh 3000mAh cell is fitted, the stored curve no longer matches actual cell voltage under load. At around 20–30% reported charge, the phone's modem radio and screen draw a short current spike. If the IC reads that spike against a stale low-capacity curve, it calls a critical voltage and shuts the device down even though real charge remains. Run one full discharge-to-shutdown and uninterrupted charge-to-100% cycle. After that single cycle the IC recalibrates and the premature shutdowns stop.
Phone not powering on after the replacement battery sat in storage
Li-ion cells self-discharge in storage at roughly 1–3% per month. If this battery shipped or sat unused for several months, the cell voltage may have dropped below 3.0V per cell — the point where the BMS trips a lockout to prevent damage. The phone will show no response at all, not even a charge indicator, when you first connect a cable. Connect the phone to a wall charger rated at least 1A and leave it undisturbed for 20–30 minutes. The BMS uses a trickle pre-charge path to recover the cell back above 3.0V, after which normal charging resumes and the phone will power on.