About this replacement
Toshiba Satellite T210D / T215D Series — 10.8V Li-ion Replacement Battery (PABAS232)
This 10.8V 4400mAh Li-ion battery replaces the original pack on the Toshiba Satellite T210D and T215D series laptops. It fits models using OEM part numbers PABAS232, PABAS231, PA3821U-1BRS, and PA3820U-1BRS. The connector, BMS handshake, and cell configuration match the factory spec.
- T210D and T215D platform fit: Both the T210D and T215D share the same battery bay dimensions, connector pinout, and 10.8V three-cell-series architecture. One battery covers the full range because the BMS communicates over the same SMBus protocol with identical charge termination parameters.
- Bench tested on actual hardware: We ran this cell on a T215D-S1140 and confirmed the BMS accepted the charge cycle without fault flags, reached full termination voltage at 12.6V, and discharged cleanly through multiple cycles without triggering an early cutoff.
- First-cycle calibration on the T210D: After installing, let the laptop discharge completely to hibernate cutoff, then charge uninterrupted to 100%. This forces the T210D's fuel gauge IC to re-learn the new cell's capacity curve and clears the inaccurate battery health warning that appears in Toshiba Power Saver after every cell swap.
BIOS reporting poor battery health immediately after swapping the T210D cell
The Toshiba T210D stores battery health data in the BIOS and reads EEPROM values written by the original cell. A new cell ships with a blank or factory-default EEPROM, so the BIOS compares those values against its stored baseline and flags a mismatch as degraded health. This is not a fault with the replacement cell. Running one full discharge-to-hibernate followed by an uninterrupted charge to 100% rewrites the learn cycle and pushes updated capacity data back to the BIOS. After two to three full cycles, the health indicator in Toshiba Power Saver and Windows Battery Report will reflect the actual cell condition.
Satellite T215D shutting down at 20–30% charge shown on screen
This symptom points to a voltage cliff — when the CPU and display are both under full load, the cell voltage drops sharply below what the BMS requires to keep the system running, even though the OS fuel gauge still reads 20–30%. The fuel gauge IC on the T215D calculates remaining charge from a capacity map built against the old, degraded cell, so its percentage readings lag behind the real voltage. A full calibration cycle resets that map against the new cell's actual discharge curve. After calibration, confirm the resting voltage reads at or above 10.8V on a full charge before closing the lid.