Acer beTouch E130 Replacement Battery HH08P 3.7V 1700mAh

Acer beTouch E130 / E140 — 3.7V Li-ion Replacement Battery (HH08P)

This 3.7V, 1700mAh Li-ion cell replaces the original battery in the Acer beTouch E130, beTouch E130 B, beTouch E140, and compatible variants. It matches OEM part numbers HH08P and BT.0010S.002. If your beTouch E130 no longer holds a charge or fails to power on, this cell restores normal operation.

• beTouch E130 / E140 platform fit: Both handsets share the same battery bay dimensions, connector pinout, and 3.7V nominal voltage rail, so one cell covers the entire group. The BMS communicates over the same two-wire thermistor line used on both boards.
• Bench tested on actual hardware: We cycled this cell through charge and discharge on the E130 platform. The BMS accepted the cell without fault codes, and the charge IC stepped through trickle, constant-current, and constant-voltage phases cleanly.
• Fuel gauge recalibration on first install: On first use after installation, disable fast charging and run one full discharge-charge cycle before normal use. This gives the fuel gauge IC time to map the new cell's discharge curve before high-current charging pushes current into an uncalibrated state.

Why the beTouch E130 reports wrong battery percentage after a cell swap

The beTouch E130 uses a fuel gauge IC that tracks capacity using a coulomb counter seeded from the previous cell's discharge curve. When you fit a new cell, the IC still references old calibration data, so the percentage shown can be 10–20% off actual state of charge. The fix is one complete discharge-charge cycle without interruption. After that cycle, the coulomb counter resets its reference points against the new cell and percentage accuracy returns to normal.

Sudden shutdown at 20–30% on the replacement cell

This happens when the modem or display draws a current spike the cell cannot sustain at that state of charge, causing voltage to dip below the BMS cutoff threshold — typically 3.0V per cell — even though the gauge still shows charge remaining. It is common on the first few cycles of a new cell before the electrodes are fully conditioned. Run two or three full cycles at moderate load and the voltage sag at that charge level will reduce. If shutdowns continue past five cycles, check that the battery connector pins are fully seated and making clean contact.