![Amazon.com: 14.4V 4000mAh Ni-MH Replacement Battery for Irobot-Roomba 400 series Roomba 400 405 410 415 416 418 4000 4100 4105 4110 4130 4150 4170 4188 4210 4220 4225 4230 4232 4260 4296 Vacuum Cleaner : Home & Kitchen Amazon.com: 14.4V 4000mAh Ni-MH Replacement Battery for Irobot-Roomba 400 series Roomba 400 405 410 415 416 418 4000 4100 4105 4110 4130 4150 4170 4188 4210 4220 4225 4230 4232 4260 4296 Vacuum Cleaner : Home & Kitchen](https://m.media-amazon.com/images/I/41pywL9jo2L._AC_.jpg)
Amazon.com: 14.4V 4000mAh Ni-MH Replacement Battery for Irobot-Roomba 400 series Roomba 400 405 410 415 416 418 4000 4100 4105 4110 4130 4150 4170 4188 4210 4220 4225 4230 4232 4260 4296 Vacuum Cleaner : Home & Kitchen
![How To Tell if Your iRobot Roomba is Charging Properly - Loading Indicator on iRobot Roomba - YouTube How To Tell if Your iRobot Roomba is Charging Properly - Loading Indicator on iRobot Roomba - YouTube](https://i.ytimg.com/vi/LCO0ztCe96A/maxresdefault.jpg)
How To Tell if Your iRobot Roomba is Charging Properly - Loading Indicator on iRobot Roomba - YouTube
![Funfact: iRobot released some Roomba models without charging contacts. They also did them on 500 series with the 511 and 509 I think? : r/roomba Funfact: iRobot released some Roomba models without charging contacts. They also did them on 500 series with the 511 and 509 I think? : r/roomba](https://preview.redd.it/funfact-irobot-released-some-roomba-models-without-charging-v0-9sjwjhu8q0bc1.jpg?width=640&crop=smart&auto=webp&s=ed31273eec44b786aec83d1a616efb91d4e7d0e6)