iRobot Roomba i7 Replacement Battery 14.4V 3400mAh

iRobot Roomba i7 / i7+ / e5 Series — 14.4V Li-ion Replacement Battery (ABL-D1)

This is a 14.4V 3400mAh (48.96Wh) lithium-ion battery for the iRobot Roomba i7, i7+, e5, and compatible models. It replaces OEM part numbers ABL-D1, ABL-D2, ABL-D2B, ABL-F, 4624864, and 4763362. It fits the motor drive and navigation systems in these robotic vacuums directly.

• i7, i7+, and e5 platform fit: These models share the same 14.4V battery bay, connector pinout, and BMS handshake protocol. The i7+ adds automatic dirt disposal but draws from the same battery rail, so the same cell works across the range without modification.
• Bench tested on actual hardware: We ran this cell through full charge and discharge cycles on the i7 platform. The BMS communicated correctly with the robot's onboard charge controller — no error codes, no forced shutdowns, and the fuel gauge reported capacity accurately throughout the test.
• Dock charging habit for this robot: Do not leave the Roomba sitting on its Home Base permanently between uses. Continuous trickle charging through the dock accelerates capacity fade in lithium cells. Charge the robot fully, then remove it from the dock until the next scheduled run.

Suction dropping before the battery indicator reaches low

This happens when the motor draws more current than the BMS expects — usually caused by a partially blocked filter or brush roll tangle. The BMS doesn't trip entirely, but it reduces output current to stay within safe limits, and suction falls noticeably. The battery indicator lags behind the real power state because it measures voltage, not available current. Clean the filter and check the brush roll first; if suction restores immediately, the battery is not the cause.

Motor cutting out mid-clean and then recovering after a few seconds

This is a BMS overcurrent trip, not a battery fault. When suction is sustained against a blockage or a clogged filter, current draw spikes past the BMS protection threshold and the cell disconnects briefly. The robot pauses, the BMS resets internally, and power restores — often within 5–10 seconds. Check the filter, intake path, and side brush housing for debris. If the cutout stops after clearing the blockage, the battery is functioning correctly; the trip voltage threshold on this cell is set around 12.0V under load.