Philips FC6822 Replacement Battery 25.2V 2400mAh

Philips FC6822/FC6823 Series — 25.2V Li-ion Replacement Battery (1BD0346A)

This is a 25.2V, 2400mAh Li-ion battery for the Philips FC6822 and FC6823 cordless stick vacuum range. It replaces OEM part 1BD0346A and fits over 25 variants across these two model lines. Voltage and capacity match the original cell spec exactly.

• FC6822 and FC6823 compatibility: These models share the same 25.2V battery platform, connector pinout, and BMS communication protocol. A single cell replacement covers all variants in both lines without modification.
• Bench tested on actual hardware: We ran this battery through charge and discharge cycles on the FC6822 platform. The BMS handshook correctly with the Philips charger, accepted a full charge cycle, and triggered overcurrent protection cleanly under simulated motor load.
• Dock charging on this vacuum: Do not leave the vacuum permanently on the charging dock. Continuous dock connection applies a trickle charge that accelerates capacity fade in Li-ion cells. Charge to full, then remove from the dock until the next use.

Suction dropping before the battery indicator reaches low

The FC6822 motor draws significantly more current when the filter is partially blocked — sometimes two to three times the normal draw. That elevated current causes voltage to sag at the cell level, which the BMS reads as a low-state condition before the indicator agrees. The result is reduced motor speed and weaker suction while the LED still shows charge remaining. Clean or replace the filter first. If suction recovers, the battery is not the cause.

Motor cuts out mid-clean and then recovers after a short pause

This is a BMS overcurrent trip, not a dead battery. When sustained suction restriction forces the motor to pull above the cell's rated discharge limit, the BMS opens the circuit to protect the cells. After a short rest, the BMS resets and the vacuum powers back on. The fix is almost always a blocked filter or a partially obstructed intake — clearing the restriction brings current draw back within limits. If the motor cuts out even with a clean filter and clear airpath, check that the replacement cell's BMS is communicating correctly with the vacuum's controller by confirming the charger accepts and completes a full charge cycle.