14.4v NICD 2000MAH Replacement Battery for Roomba 500 Series

$29.99

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

Name: 14.4v NiCD Battery Replacement for iRobot Roomba 800, 870, 880
SKU: ML-RMB50022
Availability: InStock

Availability: In stock

SKU: ML-RMB50022 Category: Vacuum

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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Joseph Clayton

Absolutely pleased with the fast reliable service, came earlier than expected. The orice point was Absolutely amazing...

Alvaro Martinez

Great battery

Joshua

Works great so far fit perfectly

JTM Construction

Battery arrived quicky and charged. No issues

Dave Peleshok

Great battery. Working perfectly in my garage door openers.

William Costas

Arrived in one day from Amazon

Donna Sherian

I purchased the Mighty Max ML7-12 12V 7.2Ah battery on Amazon in June 2026 to replace the battery in my APC Back-UPS ES 550, and it worked perfectly. The battery was very reasonably priced, arrived quickly, and was incredibly easy to install.

The fit was exact, the connections were straightforward, and my UPS was back up and running in just a few minutes. Now my modem and Wi-Fi system stay powered during outages and power flickers, which has eliminated the need to constantly reset my network equipment.

If you’re looking for an affordable, reliable replacement battery for a UPS, alarm system, or other backup power application, I highly recommend the Mighty Max ML7-12. Great value, easy installation, and excellent performance so far!