Rated 4.57 out of 5 based on 7 customer ratings
(7 customer reviews)

$29.99

14.4V Vacuum Battery for iRobot Roomba 400 4000 5545 17373 APS

Availability: In stock

SKU: ML-RMB40015 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
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

7 reviews for 14.4V Vacuum Battery for iRobot Roomba 400 4000 5545 17373 APS

  1. Rated 4 out of 5

    Kindle CustomerWanda L. RiddickDiane LaReauRLMChantalhenaultWeb CustomerSylvain RouleauRoger J. Newman

    Battery works well. Just find ni cad batteries need to be charged and discharged carefully if you want long life

  2. Rated 3 out of 5

    Kindle CustomerWanda L. RiddickDiane LaReauRLMChantalhenaultWeb CustomerSylvain RouleauRoger J. Newman

    Ne dure pas aussi longtemps que celle d’origines

  3. Rated 5 out of 5

    Kindle Customer

    Very pleased with this battery! Received my order promptly and my old Roomba ran and ran after a good charge! Very pleased with the price too.

  4. Rated 5 out of 5

    Customer

    Very pleased with this battery! Received my order promptly and my old Roomba ran and ran after a good charge! Very pleased with the price too.

  5. Rated 5 out of 5

    Wanda L. Riddick

    Battery works great. But my charger went so now I need to get that now.

  6. Rated 5 out of 5

    Diane LaReau

    The battery replacement was perfect. It turned out the battery was not he issue with the roomba and so it was returned. Return processing was quick and efficient.

  7. Rated 5 out of 5

    RLM

    This replacement was about 15% less costly than original manufacturer and others, but I took the gamble and so far has paid off. Charged the battery pack and have used it three times without issues. Great little purchase; hope to get 10 years out of this battery pack as I did the original manufacturer’s battery pack.

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Excellent
Mighty Max Battery
Based on 3474 reviews
Arrived quickly. Even got a sticker with it.
Solid looking battery, came well packaged. Have used their battery before for my lawnmower and now looking forward to see how it lasts in my snowmobile.
I can't believe it less than 48hrs since I ordered from Walmart and it's in the machine. What more can I say except great price.
Thanks Larry
Item as described and perfect fit and arrived on time
Battery arrived in a good shape package strait to my door steps
Arrived just in time to power my generator here in the cold Maine winters. Excellent service!
Arrived quickly from WALMART.COM. Perfect size and proper placement in my generator. Installation was easy. Generator fired right up. Battery came fully charged.
New battery. Ready for cold weather!
So far these Might Max batteries are good but it’s only the first day and they were on charge for 12 hrs. I’ll have to come back and do an update at some point in time. Ordered them on Amazon and got them the next day. I was encouraged by Mighty Max to make this google review and post pictures to extend my warranty for 3 months but there is no way to post pictures 🤣🤣🤣 It’s been a few months and I was able to go back and edit, so here is a video I made, the rest of the photos I have deleted. Batteries are still going strong. Update 12-11-2025
They arrived within 2 days of ordering them packaging was really good I haven't put them in my MX350 yet I hit them with my multi meter fresh out of the box and got 12.4v on both batteries so that is good