Question about iRobot Roomba 4210 Bagless Robotic Vacuum

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Model4210battry won't recharge, is it worth ordering a battery?

Reading the list of problems with this product is it worth purchasing a
replacement battery, mine was minimally used when battery stopped
recharging, I have had it several years now, not sure whether I should
pitch it or try replacing the battery. Recommendations?

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Don't buy a new battery yet. you can reset the battery by charging for 16 hours, if this does not work, you need to take the battery out, push and hold the power button on your roomba for at least 15 seconds then reinstall the battery. plug in the charger directly to roomba not the docking station and charge until the battery light on the roomba is green. do not interrupt the battery charging cycle. after, leave the roomba charging for an additional 3 days or 72 hours. after, run roomba in max mode and run it till the battery is completely depleted. this will improve the battery overtime by charging again for 72 hours and depleting the battery. do this 3 or 4 times. and the battery should get better

Posted on Jul 15, 2009

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I had the same issue with my 4210. If the unit is more than a year and a half old, and the above listed fix does not work, I would get a new battery.

Don't buy one from irobot or you will have the same issue in a year or so. I got a NIMH 3800ma battery from ebay for about $30. It has been running stronger and longer than the original APS battery.

Posted on Oct 01, 2009


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Generic problem for all Vacuums
I have a Dirt Devil
Posted by maryk813 on Jul 02, 2008
I have a Dirt Devil Broom Vac that won't hold a charge. I need to replace the rechargeable battery. Is there a dealer near Bartlett, TN that can do that or would I be able to do it myself if I bought a new battery?

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Hours are: 8:00 AM to 7:00 PM (EST)
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