Hoover BH15030 20V Cordless Vacuum Replacement Battery 3000mAh

Hoover BH15030 / BH25040 Series — 20V Li-ion 3000mAh Replacement Battery

This is a 20V Li-ion replacement battery rated at 3000mAh (60Wh) for Hoover cordless stick and handheld vacuums. It covers the BH15030, BH25040, BH15030C, BH15040, BH15260, and BH15260PC part numbers. If your original Hoover 20V battery no longer holds charge or cuts out mid-clean, this cell slots in using the same connector and BMS handshake as the factory unit.

• 20V Hoover cordless vacuum platform: These models share a common 20V rail, identical battery bay dimensions (130.50 × 84.40 × 55.00mm), and the same BMS communication protocol. That's why a single cell covers multiple part numbers across Hoover's stick and handheld line.
• Bench tested on actual hardware: We ran this cell through charge cycles on a 20V Hoover platform and confirmed the BMS handshake completes without fault codes. The protection circuit held cutoff correctly at both low-voltage discharge and peak draw under motor load.
• Dock charging habit for this vacuum: Do not leave the vacuum sitting on the charging dock permanently. Hoover's 20V dock delivers a trickle charge once full — continuous trickle accelerates capacity fade in Li-ion cells faster than in most other cordless tool categories. Charge to full, then remove.

Suction dropping before the battery indicator reaches low

A partially blocked filter forces the motor to draw above its rated current. The BMS reads this as an overcurrent condition and reduces power to the motor before the cell voltage has actually dropped. The result is weaker suction with no low-battery warning. Clean or replace the filter first — if suction recovers immediately, the battery was fine all along.

New battery not charging — charger light stays amber or shows no response

Hoover's 20V charger sends a handshake signal before it begins a charge cycle. If the replacement cell's BMS does not respond within the expected window, the charger stays in standby. This is more common when a battery has shipped in a deeply discharged state. Connect the battery to the charger, wait 10 minutes, then disconnect and reconnect — most BMS circuits re-initialise on the second connection once the cell voltage climbs above 16V.