Review on 🔋 BAKTH 14.4V 3000mAh NI-MH Battery: Upgrade Your iRobot Roomba 500-880 R3 by Amy Ruiz

Didn't charge at first but was able to charge by repeatedly restarting Roomba (Hold down Spot and Dock buttons for ten seconds). After one use and an hour of cleaning and charging, I get "Charging Error 3". The battery terminals are clean and the charger is connected directly to Roomba. The voltage at the charger is normal. Reset several times, the error does not go away. I know the Roomba works well as it charges the original old battery well, although I only get 5 minutes of run time up front which is why I bought a new one. Conclusion: Do not buy this battery. Better buy from the iRobot OEM, even if it costs more.