Upgraded to 3.8Ah 14.4V Replacement Battery Compatible with R3 500,600,700,800,900 Series 500 510 530 531 532 535 536 540 550 552 560 570 580 595 600 620 660 700 760 770 780 790 800 870

Charged well once. Then It started giving error codes. I traced the problem to the connectors. They were poorly aligned and would not make proper contact unless excessive pressure was put on the battery. Once assembled it wouldn't work. Sending it back for a refund. Poorly assembled.

This battery was easy to install, but after one use it would not charge. I kept getting error codes. Through research on that error code, I found that the problem was due to it not being an official IRobot Roomba battery. I tried cleaning the area and reinstalling it. Still won’t charge. Unfortunately I waited too long to install it because my old battery was doing ok and I just didn’t get around to it. My window to return it has closed. I want others to be aware that this battery DID NOT WORK with my Roomba.

After about 8hrs of charging, the battery I received is good for only about 15 minutes of vacuuming, then it's empty. Leaving my Roomba off the charger results in completely drained/dead battery after a few days.

My Roomba would not hold a charge. Looked online to diagnosis it myself and read a suggestion to replace the battery pack. Ordered this online and YAY!, my crazy expensive Roomba is working again for cheap. It also has an extended vacuum time with this battery life upgrade.

Runs the iRobot perfectly well but now after having it for a couple of months it runs for only 30/45 mins before needing to be recharged! That is less than 1/2 the operating time as the iRobot battery. Just spend the money for the iRobot product.I want my money back!

i installed so easy, but never works, charges for 24hs till battery goes green, when roomba leaves charger its turn off

Easy to drop into your iRobot Rhumba floor vac. Good replacement. Don't know yet about battery life or longevity.

At least its 90% effective and still cheaper then buying elsewhere.