About this replacement
Acer Iconia Talk S / A1-734 — 3.8V Li-Polymer Replacement Battery (KT.0010N.001)
This 3.8V, 3300mAh lithium-polymer cell replaces the original battery in the Acer Iconia Talk S and A1-734 tablet. It matches OEM part numbers 141007, KT.0010N.001, and PR-3258C7G. Capacity figure is taken directly from product data at 12.54Wh.
- Iconia Talk S and A1-734 fit: Both models share the same 3.8V single-cell architecture, connector pinout, and BMS handshake protocol — one cell covers both variants without modification.
- Bench tested on actual hardware: We cycled this cell through charge and discharge on the A1-734 platform. The BMS accepted the charge handshake on the first cycle and held voltage within spec under combined display and LTE load.
- Fuel gauge recalibration after swap: After fitting this battery, run one full discharge to automatic shutoff, then charge uninterrupted to 100%. This resets the fuel gauge IC against the new cell's characteristics and clears the inaccurate percentage readings that commonly appear after a battery replacement.
Tablet shutting down at 15–25% remaining after battery swap
This happens when the fuel gauge IC is still calibrated to the old cell's discharge curve. When the display and Wi-Fi or LTE run together, current draw spikes and the cell voltage drops sharply — the gauge reads this as a hard cutoff even though capacity remains. The fix is a single full discharge-to-shutoff cycle followed by an uninterrupted charge to 100%. After that cycle, the gauge re-maps to the new cell and the early shutoff stops.
Fast charging not available after fitting a new battery
The Iconia Talk S charge IC uses a handshake with the battery's BMS before it steps up to higher charge rates. On a fresh cell, that negotiation sometimes fails on the first attempt because the BMS hasn't completed an accepted cycle yet. Plug in using the original Acer adapter, let the first charge complete fully without interruption, then disconnect and reconnect. The charge IC renegotiates on the second session and fast charge becomes available at that point.