14.4V Battery for iRobot Roomba R3 500 Series Vacuum Cleaner

All charged and ready to go!

Great 4- wheeler battery would definitely recommend future purchases will be these batteries

Works great. The battery fits nice and tight with a little modification on the holder. Perfect!

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"

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!

Easy to install. Scooter started with no problems

Quick Delivery

Always a reliable battery. Can’t beat the price, reliability and great customer service !

Great price great product

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.