About this replacement
Sichler PCR-7000 — 14.8V Li-ion Replacement Battery (NX-6080-919)
This 14.8V 5200mAh Li-ion battery replaces the original pack in the Sichler PCR-7000 cordless stick vacuum. It matches the OEM part number NX-6080-919 and fits the same battery bay without modification. Voltage and cell count are identical to the factory pack.
- PCR-7000 platform fit: The PCR-7000 runs a 4S lithium cell arrangement at a nominal 14.8V. This replacement uses the same cell configuration and connector, so the vacuum's motor controller reads the pack voltage correctly from the first charge cycle.
- Bench tested on actual hardware: We cycled this pack through charge and discharge on the PCR-7000 platform and monitored BMS behaviour under sustained suction load. The protection circuit held stable voltage delivery and tripped correctly at low-cell-voltage threshold without nuisance cutoffs at normal operating draw.
- Dock charging discipline for the PCR-7000: Do not leave the PCR-7000 sitting on the charging dock permanently. Cordless vacuums in continuous dock contact receive a low-level trickle that degrades cell capacity faster than intermittent charge cycles. Charge to full, then remove the vacuum from the dock until the next use.
Suction dropping before the battery indicator reaches low on the PCR-7000
This happens when the motor draws more current than the battery can sustain at full voltage — a condition called voltage sag. On the PCR-7000, a partially blocked filter is the most common trigger: restricted airflow forces the motor to work harder, pulling higher current and dragging cell voltage down before the indicator catches up. The vacuum reads cell voltage to estimate charge level, so a sagging pack looks fuller than it is. Clear the filter first, then check whether suction holds — if it does, the battery is not the cause.
PCR-7000 motor cuts out mid-clean then comes back on after a pause
This is a BMS overcurrent trip, not a flat battery. When suction airflow is restricted — by a clogged filter, a blockage in the hose, or a full dust cup — the motor draws sustained current above the BMS trip threshold. The protection circuit cuts power to prevent cell damage. After a short pause the BMS resets and power returns. Check the filter, empty the dust cup, and clear any hose blockage before swapping the battery. If the cutout stops after clearing the restriction, the replacement pack is functioning correctly.