About this replacement
Toshiba Satellite Click 2 Pro P30W-B-10E — 11.1V Li-Polymer Replacement Battery (PA5191U-1BRS)
This is an 11.1V, 2200mAh (24.42Wh) Li-Polymer battery for the Toshiba Satellite Click 2 Pro P30W-B-10E 2-in-1 hybrid. It replaces OEM part PA5191U-1BRS. Fits the tablet-side battery bay — the unit that powers the screen and system when detached from the keyboard dock.
- P30W-B-10E tablet unit compatibility: The P30W-B series uses a flat Li-Polymer cell fitted to the display/tablet half of the chassis. This battery matches the connector pinout, cell dimensions (222.75 x 102.76 x 4.00mm), and BMS communication spec that the Satellite Click 2 Pro expects on that rail.
- Bench tested on actual hardware: We ran this cell through charge and discharge cycles on the P30W-B platform. The BMS handshake completed without fault codes, charge acceptance was normal across the full voltage range, and the protection circuit tripped correctly at low-voltage cutoff.
- Post-swap calibration on the P30W-B: After fitting, run the device down to hibernate-cutoff under normal load — screen on, Wi-Fi active — then charge uninterrupted to 100%. This resets the BIOS battery learn cycle and clears the inaccurate health warning the firmware throws after any cell swap.
BIOS reporting poor battery health immediately after fitting the PA5191U-1BRS
The Satellite Click 2 Pro stores charge history and health data in EEPROM on the original cell. When a new cell goes in, that data is blank or mismatched, so the BIOS flags it as degraded — even though the cell is new. This is a firmware read issue, not a battery fault. Run one full discharge-to-hibernate, then a complete uninterrupted charge to 100%. After one or two full cycles, the BIOS recalculates and the health status corrects itself.
Satellite Click 2 Pro shutting down at 20–30% shown on the fuel gauge
This happens because the fuel gauge IC is still calibrated to the old cell's discharge curve. On a degraded original cell, 20% voltage mapped to near-empty. The new cell has more capacity at that same voltage point, so the gauge reads low and triggers a premature shutdown. The fix is calibration: let the device discharge fully to auto-shutdown, then charge to 100% without interruption. After two or three of these cycles, the fuel gauge IC recalibrates to the new cell and the percentage readout stabilises.