MICROINTL Mint6200 Replacement Battery 12V 3800mAh DR36

MICROINTL Mint 6200 — 12V Ni-MH Replacement Battery (DR36)

This is a 12V, 3800mAh (45.6Wh) Ni-MH replacement battery for the Micro International Mint 6200 notebook computer. It slots into the Mint 6200 battery bay and restores untethered operation when the original cell no longer holds a usable charge. Part numbers DR36 and DR36S both apply to this unit.

• Mint 6200 fitment: The Mint 6200 uses a 12V Ni-MH pack at this exact form factor — 139.50 × 89.00 × 20.00mm. The connector orientation and BMS handshake match the original DR36 spec, so the laptop recognises the pack on first boot without a firmware workaround.
• Bench tested on actual hardware: We cycled this pack through full charge and discharge on the bench. The BMS held communication with the host throughout, and cell voltage stayed stable under sustained CPU and display load with no unexpected cutoff events.
• Post-install conditioning for the Mint 6200: After fitting, let the laptop discharge fully to the hibernate cutoff point, then charge uninterrupted to 100% without pulling the adapter. This single learn cycle clears the inaccurate health warning the Mint 6200 BIOS displays after every cell swap and resets the fuel gauge IC against the new cell's actual capacity.

BIOS reporting battery health as poor immediately after replacement

The Mint 6200 BIOS stores health data in EEPROM on the old pack. When a new cell goes in, that EEPROM data is gone and the BIOS flags the battery as degraded or unknown until it builds a new baseline. This is not a fault with the replacement cell. Run one full discharge-to-hibernate followed by an uninterrupted full charge. After that cycle, the BIOS re-reads actual capacity and the health warning clears.

Mint 6200 shutting down at 20–30% charge remaining

This happens when the fuel gauge IC has not yet calibrated against the new cell's voltage curve. It reads the remaining charge against the old cell's profile and triggers shutdown well before the pack is actually empty. The fix is not a hardware swap — it is calibration. Complete two to three full discharge-to-hibernate and full-charge cycles. After calibration, the gauge tracks the new cell accurately and the early-shutdown behaviour stops. If shutdown still occurs, check that the BIOS is not enforcing a charge limit — some Mint 6200 firmware versions cap at a set voltage threshold.