About this replacement
Amazon Kindle Paperwhite 2014 Version — 3.7V Li-ion Replacement Battery (S2011-003-A)
This 3.7V, 1600mAh Li-ion cell replaces the original battery in the Amazon Kindle Paperwhite 2014 (EY21), Kindle Touch 6" 2014, and Kindle Touch 3G 6" 2014. It matches OEM part numbers S2011-003-A, MC-354775-03, 58-000008, and S2011-003-S. Dimensions are 91.80 x 58.00 x 4.00mm — a direct physical match for the original battery bay.
- EY21 and Kindle Touch 6" 2014 platform: These three models share the same battery bay geometry, connector pinout, and 3.7V voltage rail. The firmware on each communicates directly with the cell's protection circuit, so the cell swap requires no configuration changes.
- Bench tested on actual hardware: We ran this cell on a Kindle Paperwhite 2014 unit. The BMS accepted the new cell without error, charge acceptance was normal across the full cycle, and the protection circuit tripped correctly at the low-voltage cutoff threshold.
- Post-swap charging on the Kindle Paperwhite: After installing, charge via micro-USB for a complete cycle before reading. The Kindle's firmware recalibrates its battery percentage display to the new cell during that first full charge — skipping it causes the percentage indicator to read inaccurately for days.
Battery percentage jumping after a cell swap on the Kindle Paperwhite 2014
The Kindle Paperwhite 2014 stores charge curve data for the original cell in firmware. When a new cell goes in, the stored curve no longer matches actual cell behaviour. The firmware recalibrates by sampling voltage at rest and under load across a full charge-discharge cycle. Until that cycle completes, the percentage display will jump — this is normal and not a fault with the cell.
Page turn response slow immediately after battery replacement
E-ink displays draw a brief surge of current to refresh the screen on each page turn. If the new cell arrived at a low storage voltage, that surge causes a momentary voltage sag the processor detects as a low-power condition. The device throttles refresh speed to protect the display pipeline. Connect to a charger and bring the cell above 3.9V — page turn speed will return to normal without any settings change.