About this replacement
Philips Xenium E130 / E105 — 3.7V Li-ion Replacement Battery (AB0800EWMT)
This 3.7V, 700mAh Li-ion cell replaces the original AB0800EWMT battery in the Philips E130 and E105 feature phones, including the Xenium E130 and Xenium E105 variants. It slots into the existing battery compartment and connects to the phone's charge IC and fuel gauge system without modification. Capacity figures are from product data — 700mAh at 2.59Wh.
- E130 and E105 platform compatibility: The Xenium E130 and E105 share the same battery bay dimensions, connector pinout, and BMS communication protocol — all four models accept the AB0800EWMT cell without any hardware changes.
- Bench tested on actual hardware: We cycled this cell through charge and discharge on the E130 platform. The BMS accepted the new cell on first connection, the charge IC reached termination voltage cleanly, and no protection trips were triggered during the discharge curve.
- Fuel gauge recalibration on first use: Disable fast charging for the first full discharge-charge cycle after fitting this cell. The fuel gauge IC is calibrated to the old cell's discharge curve — running one uninterrupted cycle at standard current lets it recalibrate against the new cell before high-current charging begins.
Why the Philips E130 reports wrong battery percentage after a cell swap
The E130 uses a fuel gauge IC that builds a model of the cell's discharge curve over charge cycles. When a new cell goes in, the IC is still running the old cell's model — capacity estimates are off until it recalibrates. You may see the percentage jump several points, move erratically, or stall for long stretches. One full discharge from 100% down to auto-off, followed by a complete charge back to 100%, gives the IC enough data to rewrite its reference curve.
Sudden shutdown at 20–30% on the replacement cell
This happens when the fuel gauge IC is reporting a percentage that no longer matches actual cell voltage under load. When the modem or backlight draws current, the cell voltage drops faster than the uncalibrated IC expects — the protection circuit cuts power before the displayed percentage reaches zero. It looks like a faulty battery but it is a calibration gap. Run the first cycle without fast charging and without interrupting the discharge, and the shutdowns typically stop after that cycle completes.