About this replacement
Amazon Kindle 3 — 3.8V Li-Polymer Replacement Battery (S11GTSF01A)
This 3.8V, 3500mAh lithium-polymer cell replaces the original battery in the Amazon Kindle 3 e-reader, including the Kindle 3 Wi-Fi and Kindle 3G variants. It matches OEM part numbers S11GTSF01A, GP-S10-346392-0100, 170-1032-01, and 170-1032-00. Capacity is rated at 13.3Wh — matched to the original cell specification.
- Kindle 3 platform fit: The Kindle 3 Wi-Fi and 3G share the same battery bay, connector pinout, and BMS handshake protocol. All variants accept the same cell — voltage rail and thermistor line are identical across the range.
- Bench tested on actual hardware: We ran this cell through full charge and discharge cycles on Kindle 3 hardware. The BMS accepted the cell without error flags, and battery percentage reporting stabilised after one complete charge cycle.
- First-charge calibration after swap: After fitting this cell, connect the Kindle to a USB charger and let it complete a full charge before use. The Kindle 3 firmware reads battery percentage from a fuel gauge that recalibrates to a new cell during that first uninterrupted charge — skipping it causes erratic percentage readings.
Why the Kindle 3 won't boot after a battery swap
Lithium-polymer cells ship at storage voltage — typically 3.6V to 3.7V. The Kindle 3 requires a minimum boot voltage closer to 3.75V before it will power on. If you press the power button immediately after fitting the new cell and nothing happens, the cell is not faulty — it is simply below the boot threshold. Connect the USB charger and leave it for 10 minutes before attempting to power on again.
Battery percentage jumping or reading 0% on a freshly installed cell
The Kindle 3 uses a coulomb-counter fuel gauge that tracks charge relative to a baseline set during calibration. A new cell has no calibration baseline stored, so the firmware cannot accurately estimate state of charge until it has seen one full charge cycle from near-empty to 100%. Until then, the percentage display may jump between readings or show 0% even when the device is running. Charge the device to 100% without interruption — the gauge will lock to the new cell's capacity curve and stabilise from that point forward.