14.4V Vacuum Battery for iRobot Roomba 4290, 4125, 5250
14.4V Vacuum Battery for iRobot Roomba 4290, 4125, 5250 - Image 2
14.4V Vacuum Battery for iRobot Roomba 4290, 4125, 5250 - Image 3
14.4V Vacuum Battery for iRobot Roomba 4290, 4125, 5250 - Image 4
14.4V Vacuum Battery for iRobot Roomba 4290, 4125, 5250 - Image 5
  1. 14.4V Vacuum Battery for iRobot Roomba 4290, 4125, 5250
  2. 14.4V Vacuum Battery for iRobot Roomba 4290, 4125, 5250 - Image 2
  3. 14.4V Vacuum Battery for iRobot Roomba 4290, 4125, 5250 - Image 3
  4. 14.4V Vacuum Battery for iRobot Roomba 4290, 4125, 5250 - Image 4
  5. 14.4V Vacuum Battery for iRobot Roomba 4290, 4125, 5250 - Image 5
Rated 5.00 out of 5 based on 1 customer rating
(1 customer review)

$29.99

14.4V Vacuum Battery for iRobot Roomba 4290, 4125, 5250

SKU: ML-RMB40023 Category:
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
Excellent
Mighty Max Battery
Based on 1747 reviews
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Susan O
All charged and ready to go!
Justin Willoughby
Great 4- wheeler battery would definitely recommend future purchases will be these batteries
Terri Graichen
Works great. The battery fits nice and tight with a little modification on the holder. Perfect!
Michael Rocklewitz
Ive purchased batteries from MightyMax for 2 small APC Backups 425M UPS's and they seem to be quite good so far. We had one rather lengthy power outage and the things on those ups's stayed online for significantly longer than the original APC batteries. No clue about longevity yet, but in the first month here - things seem quite nice.

The batteries in this review photo were received today 5/5/25, are for my big boy Cyberpower CP1500PFCLCD. I assume that things will go just as well with these - Purchased through amazon, they came shipped direct via fedex. Slight issue with fedex but nothing to do with MightyMax. I assume there will be no issues with these batteries either. 1 year warranty. Extends 3 months with registration. And another 3 months with a review. You cant go wrong with that arrangement. 1.5 years of warranty is excellent - hopefully it isnt needed as they are placed in a unit designed for "out of sight out of mind"
Larry Roupe (bunzy)
Mighty max is the way to go! First one was lasted about 2 years. Hopefully I can get the same out of the new one!
Paul Berlam
Easy to install. Scooter started with no problems
Macky Evans
Quick Delivery
Craig F
Always a reliable battery. Can’t beat the price, reliability and great customer service !
Donna Jones
Great price great product
Fred Williams
This is the second set of these batteries purchased because this 15ma battery holds a charge on our Pride Mobility Gogo Elite Traveler longer than similar 22ma batteries and is not as heavy. This set is for an additional battery pack for my wife’s scooter.

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