Japcell Battery for Roomba iRobot – 3000 mAh. Japcell stands for high quality at a good price – no middleman, directly from the factory to the end consumer. Give your vacuum cleaner a new lease on life by replacing your battery with a new Japcell Roomba battery. Remember to clean the machine regularly, as hair and dirt can shorten the battery's lifespan by making the cleaning of moving parts more difficult due to increased resistance. Here you will find cleaning accessories. We also offer a power supply for the charging station, in case it needs a refresh as well. If the vacuum will be unused for an extended period, remove the battery (it can last up to 6 months when fully charged) or remember to charge the machine every month to avoid battery collapse. We also carry batteries for the virtual wall, which prevents the iRobot Roomba robot vacuum from entering unwanted areas. Some users use C batteries, while others use AA batteries.