$29.99

14.4v NiCD Battery Replacement for iRobot Roomba 800, 870, 880

Availability: In stock

SKU: ML-RMB50022 Category:
The ML-RMB500 battery is fully compatible with all Roomba 500, 600, and 700 series. Mighty Max ML-RMB500 Brand new Battery Pack which is compatible with iRobot Roomba Advanced Power System (APS) Battery.  ML-RMB500 replaces the original iRobot Roomba 80501 battery 
ML-RMB500 is an Ni-Cd Rechargeable battery that keeps Roomba running at peak performance, cleaning up your room in a single charge.  ML-RMB500 can be charged or discharged as needed without loss of capacity.
Battery Specifications:
Voltage: 14.4V
Amperage: 2.0AH
Chemistry: Ni-Cd
Warranty: 1 Year
Width

2.25

Length

5.50

Warranty

1 Year

Quantity

1

Chemistry

NiCd

Amp Hour

2.0Ah

Volts

14.4v

Height

1.75

Weight

3.00 Lbs

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Excellent
Mighty Max Battery
Based on 4229 reviews
Prefect fit recommendations approved
Great battery excellent price fully charged
Great battery for my power station it is running with excellent power great battery excellent price
Came as expected and was fully charged 12.94v
Battery arrived in excellent condition. Even though it is the same 9ah size battery as the original one I am replacing, it is a slightly smaller size package requiring me to add extra washers as spacers on the battery hold down bolts. No big deal just be aware you may need to do the same thing. I hope this one lasts as long as the previous brand did.
Fully charged when delivered 03/28/2026.
THANK YOU!!!
If it perfectly and had plenty of juice good deal for the money
It works really good !
Easy to install came fully charged and started the kids 4 wheeler on the first crank
Ordered 2 batteries. Great price. Very well packaged. No damage and work flawless.