About this replacement
Barnes & Noble Nook 7 (BNTV460 / BNTV450) — 3.7V Li-Polymer Replacement Battery (PL3370100P)
This 3.7V, 2600mAh (9.62Wh) lithium-polymer battery replaces OEM part PL3370100P in the Barnes & Noble Nook 7 tablet. It fits the BNTV460 and BNTV450 board revisions, including the 2016 Nook 7" model. Swapping this cell restores power to tablets that no longer hold a charge or fail to turn on.
- BNTV460 and BNTV450 compatibility: Both board revisions use the same connector pinout, voltage rail, and BMS handshake protocol. One replacement cell covers the full BNTV4xx lineup without adapter or modification.
- Bench tested on actual hardware: We ran this cell through charge and discharge cycles on a BNTV460 unit. The BMS accepted the cell on first contact, and the charge IC cycled through the standard constant-current to constant-voltage transition without fault flags.
- Fuel gauge recalibration after install: After fitting this battery, run the tablet down to automatic shutoff, then charge uninterrupted to 100%. This resets the fuel gauge IC calibration against the new cell and clears the inaccurate percentage reading that almost always appears after a swap.
Nook 7 shutting down at 15–25% remaining
The Nook 7 display and Wi-Fi draw current simultaneously during active use. At lower state of charge, the combined load pulls cell voltage below the BMS cutoff threshold before the percentage counter reaches zero. The tablet interprets this as a battery fault and shuts off — not a soft shutdown. Running one full discharge cycle recalibrates the fuel gauge so the reported percentage aligns with the actual voltage curve of the new cell.
Nook 7 showing wrong battery percentage after replacement
The fuel gauge IC stores a learned capacity model from the original cell. After a swap, that stored model no longer matches the new cell's actual voltage-to-capacity curve, so the percentage readout drifts — often jumping from 40% to 10% or freezing near 100%. A single full discharge to automatic shutoff followed by an uninterrupted charge to 100% forces the IC to rewrite its calibration data. After that one cycle, percentage tracking stabilises at accurate readings.