How do I fix a Roomba i8 that will not charge fully, and is the battery covered by warranty?
Answer
Reset the Home Base power, clean the charging contacts, and use a genuine iRobot battery if replacement is needed. Warranty coverage for a Roomba i8 battery depends on the purchase date and iRobot’s current warranty terms, so confirm status in the iRobot account or with iRobot support rather than assuming a free battery.
Before you start: stop right away if…
- Unplug the Home Base before cleaning contacts and keep liquids away from open ports.
Follow these steps
Power-cycle the Home Base
Unplug the Home Base for about one minute, then plug it back in and reseat the Roomba i8 so the metal charging contacts line up firmly.
You should see: The dock shows normal power behavior and the robot reports charging again.
Clean the charging contacts
Wipe the charging contacts on both the robot and the Home Base with a dry or slightly damp lint-free cloth, then dry them fully before docking again.
You should see: The robot stays seated and charging instead of repeatedly losing contact.
Use a genuine iRobot battery if replacing
If the battery still will not hold a full charge, replace it with a genuine iRobot battery. Aftermarket packs are a common cause of incomplete charging or related errors.
You should see: With a genuine battery installed, the robot charges to full on the Home Base.
Check warranty status with iRobot
Sign in to the official iRobot account or support flow with the robot’s serial number and proof of purchase to see whether battery or robot coverage still applies before buying parts.
You should see: iRobot shows whether the i8 is in warranty and what battery options are offered.
Reconnect the app after a dead battery
If the app still shows offline or cloud lost after the battery recovered, reboot the robot on a completed charge and reconnect it to Wi‑Fi in the iRobot app.
You should see: The Roomba i8 appears online again with an accurate battery level.
Not sure this is the right page? Check here
0 of 5 checked
Extra tips
What to look for: Battery charging status that never reaches full, error or light behavior on the robot or Home Base, and app messages such as offline or cloud connection lost after the battery dies.
Before you change anything: Confirm the model is Roomba i8 and note any error codes shown in the iRobot app. Have the Home Base plugged into a known-good outlet. Avoid third-party batteries if you want the most reliable charge behavior. Check proof of purchase before opening a warranty claim.