Philips Pocket Memo DPM6000 Replacement Battery ACC8100 3.7V

Philips Pocket Memo DPM6000 / DPM7000 / DPM8000 — 3.7V Li-ion Replacement Battery (ACC8100)

This 3.7V 1250mAh Li-ion battery replaces the Philips ACC8100 cell used in the Pocket Memo DPM6000, DPM7000, and DPM8000 series digital voice recorders. It matches the original's voltage, capacity, and connector so the recorder powers on without reconfiguration. If the original cell has lost charge capacity or refuses to hold a charge, this is the direct swap.

• DPM6000 / DPM7000 / DPM8000 compatibility: All three models share the same battery bay dimensions, 3.7V rail, and ACC8100 part number. The BMS handshake is identical across the series, so one cell covers the full range without firmware or connector differences.
• Bench tested on actual hardware: We cycled this cell through charge and discharge on a DPM-series recorder, confirming the BMS accepted the cell, reported charge state correctly, and held voltage within spec under sustained recording load.
• First-charge protocol for digital recorders: Charge this battery fully before starting a recording session. Digital recorders write audio continuously to flash storage — if voltage drops below the recorder's minimum threshold mid-file, the current recording file is truncated and may be unreadable.

Recording stopping mid-session on the DPM6000 and DPM7000

When a degraded cell drops below roughly 3.2V under load, the DPM series halts recording and shuts down to protect flash storage. The recorder does not always warn before cutting out — it simply stops. The file in progress is usually truncated at the last successful write block, not at the moment of cutoff. A cell that reads 3.6V at rest but sags under the continuous write load is the most common cause.

DPM recorder shows full charge but dies quickly after battery swap

The DPM series reads charge state from the cell's voltage curve, not a fuel gauge IC. After installing a new cell, the recorder's charge indicator can display inaccurate readings until it completes one full charge-discharge cycle. Run the battery down to the low-battery warning, then charge it fully to 4.2V — after that cycle, the displayed charge level tracks actual capacity correctly.