High quality, environment friendly, long lasting battery for the iRobot Roomba 900 series.

Lithium batteries may cost you a little more, but our iRobot Roomba Lithium battery last 4X longer and will hold a charge for nearly twice as long as standard iRobot Roomba 900 replacement batteries.

iRobot Roomba Lithium Battery - 900 Series features:

Capacity 4400 mAh 
Li-Ion power cell
80% capacity after 800 cycles
Built-in over protection circuits provide safety and reliability (over-charge, over-discharge, over-voltage, over-current and over-temperature)
Patent battery balancing technology for expanded battery life
No memory effect
Low rate of self-discharge (1% per month)
Fully compatible with original charger

This iRobot Roomba Lithium Battery - 900 Series is also fully compatible with all Roomba 500, 600, 700 series and iRobot Scooba 400 series.

Our iRobot Roomba Lithium Batteries can save you 50% or more on battery cost.