iRobot Roomba · updated 2026-07-06

Charging Error 1: Charging Error 1 — battery not connected

What it means

The robot cannot detect its battery.

The fix

Reseat the battery; on a new robot, remove the battery pull tab.

Applies to

All series

Source

Documented by established repair references (iRobot per-series charts are not directly linkable per code): https://smartrobotichome.com/roomba-error-codes-troubleshooting/

Fix didn't take? Charging-family errors that recur usually mean the battery — see the charging-errors guide. For anything deeper, here's who actually repairs Roombas in 2026, with published prices.