Bissell 1627240 18V Replacement Battery 2500mAh

Bissell Multireach Essential 2280N Series — 18V Li-ion Replacement Battery (1627240 CBAK2.5)

This is an 18V 2500mAh (45Wh) lithium-ion battery for the Bissell 2280N, 2280Z, and Multireach Essential Vacuum P2922-18 cordless stick vacuums. It replaces OEM part numbers 1627240 CBAK2.5 and 1627644. Fits the same battery slot and uses the same connector and BMS communication as the original.

• 2280N, 2280Z, and P2922-18 platform: These models share the same 18V rail, physical battery housing, and BMS handshake protocol. One replacement battery covers the full Multireach Essential lineup using those OEM part numbers.
• Bench tested on actual hardware: We ran this cell through charge cycles on the 2280N platform. The BMS accepted the charger handshake without fault codes, held voltage at the rated 18V nominal under motor load, and triggered overcurrent protection correctly when the intake was restricted during testing.
• Dock charging on the Multireach Essential: Do not leave the vacuum sitting on the charging dock between uses. Continuous dock contact applies a trickle charge that degrades lithium cell capacity faster than normal use cycles. Charge to full, then remove the battery or vacuum from the dock.

Suction dropping before the battery indicator reaches low on the 2280N

This happens when the motor draws more current than rated due to a partially blocked filter or restricted airflow. The BMS reads the increased current draw as a low-voltage condition and begins throttling motor output to protect the cell — even if the indicator still shows charge remaining. The vacuum feels like it's losing power, but the battery isn't actually depleted. Clean or replace the filter first, then recharge to a full 18V before ruling out a battery fault.

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

This is a BMS overcurrent trip, not a dead battery. When the suction path is restricted — blocked filter, full dustbin, or debris at the inlet — the motor pulls sustained high current, and the BMS shuts the output circuit to prevent cell damage. After the trip, the BMS resets once current demand drops, which is why the vacuum powers back on a minute later. Clear the restriction, fully recharge the battery to reset the BMS state, and confirm voltage reads at least 18V on the charger indicator before reinstalling.