Shark SV70Z Pet Perfect Replacement Battery 14.4V 2200mAh

Shark SV70 Pet Perfect Bagless — 14.4V Ni-MH Replacement Battery (XB14726)

This is a 14.4V, 2200mAh Ni-MH replacement battery for the Shark SV70 and SV70Z Pet Perfect Bagless cordless handheld vacuum. It slots into the original battery housing using the same connector and cell configuration as the factory pack. If your original battery no longer holds a charge or cuts out early into a clean, this cell restores power to the motor.

• SV70 and SV70Z platform fit: These models share the same 14.4V battery bay, connector pinout, and BMS communication protocol. The XB14726 cell group is the correct match across the SV70 series, including the Sweeper SV70 variant.
• Bench tested on actual hardware: We ran this cell through charge and discharge cycles on the SV70Z. The BMS accepted the charge signal without fault, voltage held steady under suction load, and the pack reached full capacity within the expected charge window.
• Dock charging habit on cordless vacuums: Do not leave the vacuum sitting on the charging dock between every use. Ni-MH cells in cordless vacuums develop capacity fade significantly faster when exposed to continuous trickle charge. Charge to full, then remove from the dock until the next clean.

Suction dropping before the battery indicator reaches low

The SV70 motor draws harder when airflow is restricted — a partially blocked filter forces sustained high current draw, which pulls pack voltage down faster than normal. The battery indicator reads charge level, not load-adjusted voltage, so it can still show green while the motor is already starved. The result is noticeably weaker suction long before the indicator warns you. Clean the filter and confirm the dust cup seal is seated — both directly affect how hard the motor pulls from the battery.

Motor cuts out mid-clean and then recovers after a few seconds

This is a BMS overcurrent trip, not a dead battery. When the vacuum draws more current than the BMS threshold — typically caused by a blocked filter, a jammed brush roll, or a full dust cup — the BMS cuts the output circuit to protect the cells. After a few seconds the pack cools slightly, the BMS resets, and power returns. Clearing the blockage stops the trip from repeating. If it still trips on an unobstructed machine, check that pack voltage after a full charge reads at or above 16.0V before use.