14.4v NICD 2000MAH Replacement Battery for Roomba 400 Series
14.4v NICD 2000MAH Replacement Battery for Roomba 400 Series
14.4v NICD 2000MAH Replacement Battery for Roomba 400 Series
14.4v NICD 2000MAH Replacement Battery for Roomba 400 Series
14.4v NICD 2000MAH Replacement Battery for Roomba 400 Series

$29.99

Vacuum Battery For iRobot Roomba 4000 Discovery / Dirt Dog

SKU: ML-RMB4009 Category:
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$ 48.99
$ 29.99
The ML-RMB400 Replacement Battery by Mighty Max is Designed for for iRobot Roomba APS 400 Series, Its an Ni-Cd Rechargeable battery that keeps Roomba running at peak performance, cleaning up your room in a single charge.  ML-RMB400 can be charged or discharged as needed without loss of capacity.
The ML-RMB400 battery is fully compatible with all Roomba FloorVac models: iRobot Roomba 400 Series, Discovery Series, Create Models and Dirt Dog Models.
Battery Specifications:
Voltage: 14.4V
Amperage: 2000mAh
Chemistry: Ni-Cd
Warranty: 1 Year
Multi Packs Bundled Savings

1 Pack, 2 Pack
Width

2.00
Length

7.00
Warranty

1 Year
Quantity

1
Chemistry

NiCd
Amp Hour

2000mAh
Volts

14.4v
Height

2.00
Weight

2.00 Lbs

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Mighty Max Battery
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allan levitt
Arrived in perfect condition
Lalo
2011 Yamaha Raptor 700R battery, started right up. Has a 1 year warranty. Great deal.
Zach Mankowski
Love mighty max batteries
Roger Smith
Arrived well packaged. No information as to original warranty coverage and term, but lots of solicitations to extend the warranty coverage for a whole amazing 90 days - Wow, such product confidence! At least it’s not made in China, but is Thailand any better for quality manufacturing? We’ll see.
AK B
Ktm duke 390
Kerry-Ann McNeil-Harris
Arrived next day and sas very easy to install. They also offer free 3 warrany extension.
Anne Marie Forbes
I ordered this MightyMax battery through Amazon. The Ad states it works in my GE Simon XT house alarm.
Susan Blankenship
I received my battery from Amazon on March 9, 2026. The box was a little squashed but the battery was packaged well and it it fine. I installed it and finally my gate opener is working properly. I purchased 2 batteries before this and had to return them because they were the wrong battery. This one is working great.
Eric Allen
Looks the part, I am charging it fully before install on my jet ski.
Allan Cain
These batteries arrived in great shape with the handle on top so you can carry it screw so you can hook them up very professional looking better about them from Home Depot

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