Review on 🔋 Firstpower 5.0Ah 14.4V Roomba Battery Replacement R3 Compatible with 500 600 700 800 900 Series 510 530 531 532 535 536 540 550 552 560 570 580 595 620 650 660 760 770 780 790 800 870 by Tina Jones

Weighs about 150 grams less (550g) than the original replacement battery I received, which sucks too. Expect 15 to 25 minutes of work. The first use lasted 45 minutes and just as I was congratulating myself on a "smart" and cheap purchase, my Roomba 531 suddenly died in the green. After that it didn't work for more than 25 minutes and wore off after a few uses. Revain got my money back and free shipping! I will not comment on the doubts of the manufacturer or seller. EDIT: The sellers kindly sent me a replacement battery even though I didn't ask for it as Revain refunded me the purchase price. I would say that is exceptional customer service! Maybe my terrible rating has something to do with it lol. I replaced the Sparkole brand battery and ran the Roomba with the timer running. I also weighed the battery and it weighed about the same as the previous one. However, this particular battery seems to be stable with a runtime of 45 minutes, which I find acceptable. So I am changing my rating from one star to three stars. The price of the item is very affordable and the customer service is excellent. I will say that it is possible to dice with this product. If you receive a defective one you will need to go through the process of how I did the label printing and return shipping etc. But it breathed new life into my old Roomba!