Mitsubishi DR35 Apricot Note GX Replacement Battery 10.8V 4000mAh

Mitsubishi Apricot Note GX — 10.8V Ni-MH Replacement Battery (DR35)

This is a 10.8V, 4000mAh Ni-MH replacement battery for the Mitsubishi Apricot Note GX and Apricot Note GX/2 notebook computers. It replaces OEM part numbers DR35 and DR35S. The battery restores cordless operation to these legacy notebooks where the original cell has degraded past useful capacity.

• Apricot Note GX and GX/2 compatibility: Both variants use the same battery bay geometry, connector pinout, and BMS handshake protocol tied to the DR35 part number. One replacement covers either machine without modification.
• Bench tested on actual hardware: We cycled this cell through charge and discharge on the Apricot Note GX platform. The BMS accepted the cell without fault codes and completed full charge termination correctly at 10.8V under standard Ni-MH delta-V detection.
• First-cycle conditioning on Ni-MH: After installing, run one full discharge to the notebook's hibernate cutoff, then charge uninterrupted to 100%. Ni-MH cells on this platform require that full cycle for the BIOS battery-learn routine to register accurate capacity and clear the low-health warning that appears after any cell swap.

BIOS reporting poor battery health immediately after fitting DR35

The Apricot Note GX BIOS reads health data from the battery's EEPROM on first contact. When a new cell is fitted, that EEPROM data does not yet match the BIOS's stored reference from the old pack. The system flags it as poor health before any real capacity measurement has occurred. Running a full discharge-to-hibernate followed by a complete uninterrupted charge gives the BIOS learn cycle enough data to update its reference. After one or two full cycles the health warning clears and the reported status reflects the actual new-cell capacity.

Apricot Note GX shutting down with 20–30% charge still showing

This happens when the fuel gauge IC is still calibrated to the worn-out cell's discharge curve. The original cell had a steep voltage cliff near end-of-charge, so the IC was tracking that degraded profile. When the new DR35 cell hits full CPU-plus-display load, the IC misreads remaining capacity and triggers a hard shutdown well before the cell is actually depleted. Two full discharge-and-charge cycles recalibrate the IC against the new cell's actual voltage curve. After calibration, shutdown should not occur above 5–8% indicated charge at normal load.