Product Information

New Lithium Roomba Replacement Battery
Battery: Lithium-NMC power cell
Capacity: 4400mAh
Voltage: 14.8V
Cycle time: 800 with 80% capacity left
Discharge rate: < 1% per month
Daily Usage Chart
"Our batteries are designed with a sleep-mode that deactivates the battery after a period of inactivity in order to provide a longer operating time and longer battery life. It may be necessary to reactivate the battery before use. Please refer to Quick Start Card for battery activation."

Lithium Replacement Battery for iRobot® Roomba® 500, 600, 700, 800 Series and Scooba® 450

*Fully compatible with the original charger

USA domestic sales:
FREE shipping – $69.00
Battery with 2nd year extended warranty – $79.00
Lithium Power Inc Roomba (R9) Replacement Battery
International shipping (other than United States)
Shipping costs included; duty not included – $129.00
Battery with 2nd year extended warranty – $139.00
Lithium Power Inc Roomba (R9) Replacement Battery

R9 is an upgrade version of our R5, lithium replacement batteries for the Roomba 500/600/700/800 series! Thousands of users love it!

Fully compatible with iRobot Roomba 500/600/700/800 series and Scooba 400 series.

Lithium battery technology may cost a little more up front, but lithium batteries last 4X longer and hold a charge for nearly twice as long as the stock NiMH, NiCd and all aftermarket replacement batteries. Our lithium batteries can save you 50% on battery costs and you gain the peace of mind knowing that these batteries are not going into landfill. Buy yours today!


  • Safe and reliable - meets UL and CE safety standards
    • ✱ Cell Selection: UL 1642 & CE listed only
    • ✱ Housing Design: Patent hard case to prevent damages from shock and vibrations
    • ✱ Battery protection: Built-in-smart charging CC, CV circuit and over-charge, over-discharge, over-voltage, over-current, and over-temperature protection circuit
    • ✱ UN 38.3
  • Longer operating time - Ultra High capacity, 46% more than the original Ni-MH battery
  • 4 times longer battery life - Patent battery balancing technology for expanded battery life; remains at 80% capacity after 800 charge cycles (vs. 200 cycles of the original Ni-MH battery)
  • Longer storage time - No memory effect + low rate of self-discharge
  • Fully compatible with the original charger
  • One year warranty

Reasons why people choose our products

1. They understand that Lithium is superior technology

2. They have experienced poor battery lives and want a battery with a longer operating time and longer battery life.

3. Frequent users or pet owners would like to use the Roomba almost everyday.

Our Lithium Replacement Battery
Cost/Performance $0.13/cycle $0.35/cycle $0.14/cycle $0.12/cycle $0.09/cycle
Price $99.99 $69.99 $26-38*1 $23-32*1 $79.95 $69.00
Charge Cycle*2 N/A 200 cycles 200 cycles 200 cycles 800 cycles
Type Li-NMC Ni-MH Ni-MH Ni-Cd Li-NMC
Capacity 3300 mAh 3000 mAH 2500-3500 mAH 2500-3500 mAH 4400 mAH
Weight 642g 700g 640g 640g 449g
Voltage 14.4V 14.4V 14.4V 14.4V 14.8V
Self-Discharge N/A 25%/month*3 25%/month*3 25%/month*3 1%/month
Memory Effect No Yes Yes Yes No
Warranty N/A 6 months N/A or 6 months N/A or 6 months 1year and 2nd year optional
UL and CE Certified CE Certified CE Certified CE Certified CE Certified UL 1642 and
CE Certified

*1: Please note that the battery may only work for a few weeks or months.

*2: A battery cycle is a complete discharge and recharge.

*3: The battery will be damaged through long transportation or storage time.

Cleaning Tip: Clean your floors daily to reduce dust particles.
Last longer, clean better.
twitter wordpress

iRobot®, Roomba® and Scooba® are registered trademarks iRobot® Corporation.
Neato® is a trademark of Neato Robotics, Inc.
© Lithium Power, Inc. All rights reserved.