About this replacement
Amazon Kindle 2 / Kindle DX — 3.7V Li-ion Replacement Battery (DR-A011)
This 3.7V 1100mAh Li-ion cell replaces the original battery in the Amazon Kindle 2, Kindle II, and Kindle DX e-readers. It matches OEM part numbers DR-A011 and 170-1012-00. Install it when the original cell no longer holds a charge or the device shuts down unexpectedly during reading.
- Kindle 2 and Kindle DX compatibility: Both devices share the same battery bay dimensions, connector pinout, and BMS handshake protocol — one cell fits all three model variants listed without modification.
- Bench tested on actual hardware: We ran this cell through charge and discharge cycles on a Kindle 2 unit. The BMS accepted the cell, reported state-of-charge correctly, and did not trigger any protection cutoff during normal e-ink refresh load.
- Post-swap charge cycle on Kindle 2: After fitting a new cell, connect via the device's USB cable and allow a full charge to complete before powering on. Kindle firmware recalibrates its battery percentage display against a full charge cycle — skipping this step causes the indicator to jump or read inaccurately for several sessions.
Why the Kindle 2 won't boot after a battery swap
Replacement cells ship in storage state, typically around 3.0V to 3.3V. The Kindle 2 bootloader requires a minimum voltage threshold — usually around 3.4V — before it will attempt to power on. If the device shows nothing on screen after installation, the cell is not dead; it is simply below the boot floor. Connect USB power and leave it for 10 minutes before pressing the power button. At that point the device should respond and begin a normal charge sequence.
Battery percentage jumping around after fitting a new cell
Kindle firmware tracks battery state using coulomb-counting data from the previous cell. When a new cell goes in, those stored figures no longer match the actual charge state, causing the percentage display to read erratically — jumping from 80% to 40% between page turns, or dropping suddenly. This is a firmware recalibration issue, not a fault with the cell. Run two full charge and discharge cycles to let the device re-establish its baseline, and the percentage display will stabilise.