Eureka BP14452A 14.4V Cordless Vacuum Replacement Battery 5200mAh

Eureka BP14452A / BP14452B — 14.4V Li-ion Replacement Battery

This is a 14.4V, 5200mAh (74.88Wh) Li-ion replacement battery for Eureka cordless vacuum cleaners using part numbers BP14452A or BP14452B. It slots into compatible handheld and stick vacuum models where the original cell has degraded or failed. Voltage and connector match the OEM spec.

• BP14452A and BP14452B compatibility: Both part numbers share the same 14.4V rail, connector footprint, and BMS handshake protocol. The B-suffix revision carries identical electrical specs — the change was a minor internal cell arrangement, not a voltage or capacity difference.
• Bench tested on actual hardware: We ran this cell through charge and discharge cycles on a 14.4V Eureka platform and confirmed the BMS communicates correctly with the charger, accepts a full charge without fault codes, and delivers consistent voltage across the discharge curve without premature cutoff.
• Dock charging habit on cordless vacuums: Do not leave this vacuum on the charging dock permanently. Continuous trickle charging is one of the fastest ways to degrade Li-ion capacity. Charge to full, then remove from the dock until the next use.

Suction dropping before the battery indicator reaches low

This happens when the motor draws more current than the BMS expects — usually because a partially blocked filter is forcing the motor to work harder. The BMS reads the elevated current draw as a low-voltage condition and begins reducing power to protect the cell. The battery indicator may still show two or three bars when suction noticeably weakens. Clean or replace the filter first; if suction restores immediately, the battery was not the problem.

Motor cuts out mid-run then recovers after a short pause

This is a BMS overcurrent trip, not a dead battery. When airflow is restricted — blocked nozzle, full dust cup, or clogged filter — the motor spikes current beyond the BMS threshold and the circuit opens to protect the cell. After a short pause the BMS resets and power returns. Clear the restriction, then resume use. If the trip happens again on a clear path, check that the battery contacts are clean and seated fully — a dirty contact increases resistance and can push current draw past the trip point.