Philips SC5360 Replacement Battery 3.7V 650mAh Li-ion

Philips SC5360 / SC5275 Series — 3.7V Li-ion Replacement Battery (1607420908993)

This 3.7V 650mAh Li-ion cell replaces the original battery in the Philips SC5360, SC5275, BSC200, SC5320, and compatible ladies' electric shavers. It restores cordless cutting power when the original cell no longer holds a usable charge. Voltage and physical dimensions match the OEM cell exactly: 43.00 × 14.10 × 14.10mm.

• SC5360 / SC5275 / BSC200 / SC5320 platform fit: These models share the same internal cell format, connector orientation, and BMS handshake threshold. One cell covers the full group — no adapter or wiring change needed.
• Bench tested on actual hardware: We cycled this cell through the Philips charging circuit and confirmed the BMS accepted the cell, completed a full charge cycle, and released current correctly to the motor drive board without triggering an over-discharge lockout.
• Wet-use charging rule: Dry the charging port fully before docking after wet shaving — moisture bridging the contact pins causes a BMS protection fault that reads as a dead battery rather than a charging error. A soft cloth swipe and 60 seconds open-air dry clears it.

Battery fade from daily top-up charging in personal care shavers

Philips shavers in this range are often docked overnight after every use, regardless of how much charge remains. Li-ion cells cycled repeatedly between 80–100% without full discharge develop gauge drift — the BMS loses accurate track of true capacity. The cell isn't dead; the reported state-of-charge is wrong. Replacing the cell resets this, but the pattern repeats if the dock habit doesn't change.

Motor power dropping noticeably before the low-battery indicator triggers

Under motor load, a degraded 3.7V cell sags in voltage faster than the BMS threshold monitors. The shaver motor slows and cuts less effectively while the indicator still shows charge remaining. This happens because the BMS reads resting voltage, not loaded voltage. A fresh cell at 3.7V nominal holds above 3.5V under motor draw — if yours drops below that under load, the cell is the cause.