Philips HQT360 Replacement Battery 1.2V 1800mAh Ni-MH

Philips HQT360 — 1.2V Ni-MH Replacement Battery

This is a 1.2V, 1800mAh Ni-MH cell for the Philips HQT360 electric shaver. It replaces the original internal battery when the shaver no longer holds enough charge to complete a shave. Swap it out and the motor runs at full speed again on battery power alone.

• HQT360 motor compatibility: The HQT360 shaving motor draws its operating voltage from a single Ni-MH cell at 1.2V nominal. This cell matches that voltage rail and the same connector footprint, so the BMS handshake completes without error codes.
• Bench tested on actual hardware: We cycled this cell through charge and discharge on the HQT360 platform. The BMS accepted the cell, charge termination triggered correctly at full capacity, and the motor sustained consistent speed under load without premature cutoff.
• Port drying before charge: The HQT360 is used near water. Dry the charging port and the contacts on the base unit completely before connecting. Residual moisture bridging the charge contacts can trigger a BMS protection fault the shaver reports as a dead battery rather than a charging error.

Shaver motor speed dropping before the low-battery indicator activates

Ni-MH cells sag under load before the BMS reaches its cutoff threshold. On the HQT360, the shaving motor pulls a short burst of higher current each time the cutter head engages. As the original cell ages and internal resistance rises, that burst causes a voltage dip large enough to slow the motor — even though the indicator still shows charge remaining. A fresh cell at full capacity holds voltage steady through those load spikes. Once installed and fully charged, the motor should return to consistent speed from the first stroke.

Indicator drifting — shaver cuts off earlier each week despite daily charging

Daily partial cycling on Ni-MH cells causes the charge indicator to lose calibration over time. The shaver charges to what the circuit believes is full, but the actual usable window narrows each cycle. This is capacity fade from shallow cycling — not a fault with the charger or dock. Installing a new cell and running it through two or three full charge-to-cutoff cycles resets the operating baseline. Let the shaver run until the motor slows noticeably before placing it back on charge for the first recalibration cycle.