iRobot Roomba 500 Series BatteryItem # HN-ASR744
- Add spare battery for extended cleaning time
- Cleans up to 4 rooms in single cleaning cycle
- 7-hour charge on standard charger (not included)
- Works with Roomba 500 series vacuums
- 7L x 2.2W x 2.3H inches; Weighs 3 lbs.
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