LI-ion 4400 mAh Battery pack for your 4XX-4XXX older Roomba, Dirt Dog, and Create
Never before available is a 4400 mAh LI-ion battery. This battery has all the power control circuits as well as a proprietary cell balancer circuit built into the main Printed Circuit Assembly. You can order the 4400 mAh LI-ion pack for your older model Roomba, Dirt Dog or Create. Just click on the contact me page and send me a message if you want to purchase the battery for $90 including shipping.