Tenergy 14.4V 3850mAh New Long Cycle Life NiMH Battery for iRobot Roomba 900 800 700 600 and 500 Series Vacuum Rechargeable Replacement Batteries, Bonus 4 Side Brushes and 1 Brush Cleaning Tool

Great battery replacement for our old iRobot. Works as expected and lasts longer than the original.

Fast delivery/ my roomba works again

Tenemos la Roomba funcionando de regreso. La instalacion es sencilla las instrucciones son claras. Vale totalmente la pena

Bought this after my barely one-year old replacement battery from iRobot kept going flat in the middle of the clean cycle. Been using this OEM for a couple weeks now, twice each week. So far, so good. Remains to be seen if it can last more than a year.

I bought a model 655 roomba from a neighbor as it was cheap but still working. I needed something for my workspace and I thought perfect, it looked beat up but after looking up the model I thought "why not, it's 50$"Well as you can imagine it didn't last long so I opened it up and found everything filthy and the battery dead. I found this battery and decided another 45$ was worth a try and boy am I glad I did. It's a new vacuum with perfect function and cleans like a dream! It has never performed better. It's moving from the workspace into the house as it runs for almost 90 min, docks on its own and the scheduling is running perfect due to this install!I would recommend that anyone thinking of trashing an older model if it's "not quite right" to buy one of these batteries and try it before giving up on your bot vac!!!