Tiger DesigNote DR202 10.8V Replacement Battery 6600mAh

Tiger DesigNote Series — 10.8V Li-ion Replacement Battery (DR202 / ME202BB)

This is a 10.8V, 6600mAh (71.28Wh) Li-ion battery for Tiger DesigNote series and GT series notebooks. It replaces OEM part numbers DR202, EMC36, ME202BB, NL2020, and SMP02. If your original cell is holding less charge or no longer powering the laptop off-mains, this is the direct swap.

• DesigNote and GT series fit: Both lines share the same 10.8V three-cell voltage rail, connector pinout, and BMS handshake protocol — which is why a single cell covers both. No adapter or firmware change needed.
• Bench tested on actual hardware: We cycled this cell through charge, full discharge to hibernate cutoff, and a second full charge. The BMS communicated correctly on each cycle — no false low-battery flags and no premature cutoff at the top of the charge curve.
• Post-install calibration on the DesigNote: After fitting this battery, run one full discharge to hibernate cutoff, then charge uninterrupted to 100%. This resets the BIOS battery learn cycle and clears the inaccurate health warning that appears after every cell swap on this platform.

BIOS reporting battery health as poor after fitting the new cell

The Tiger DesigNote BIOS reads EEPROM data carried over from the old cell and compares it against the new cell's charge profile. Until the learn cycle runs, the health flag stays red regardless of actual cell condition. This is a firmware state, not a battery fault. Run one full discharge to hibernate, then a full uninterrupted charge — the BIOS resets its health baseline on the next boot after that cycle completes.

Laptop shuts down at 20–30% remaining after the battery swap

Under combined CPU and display load, some cells cannot sustain the voltage the BIOS expects at that state of charge — the voltage drops below the cutoff threshold before the fuel gauge reaches zero. On the DesigNote, this usually appears after the first few cycles with a fresh cell because the fuel gauge IC has not yet mapped the new cell's discharge curve. Run two to three full calibration cycles — discharge to hibernate, charge to 100% — and the shutdown point will shift to match actual remaining capacity. If it persists past three cycles, check that the battery contacts are clean and seated fully, as a resistive connection amplifies voltage sag under load.