When my Roomba 650 started giving me the dreaded 'charging error' dance, I nearly resigned myself to buying a new robot vacuum. Then I found this 14.4V 4.5Ah replacement battery - and wow, what a game changer!

The installation was surprisingly simple once I figured out the battery compartment (pro tip: it's under that snap door with two screws). My Roomba did throw an Error Code 3 initially, but loosening one case screw magically fixed it - quirky but effective.

What shocked me most? This aftermarket battery actually outperforms the original! My Roomba now runs for a solid 45 minutes per charge - that's longer than it did when new. The included side brushes were a nice bonus (perfect fit for my model), though I wish they'd included clearer instructions.

After three months of daily use, the battery still holds charge like a champ. It's brought my 'anemic' Roomba back to life with noticeably stronger suction. For less than $50, I've avoided spending $150+ on iRobot's repair service or $400 on a new vacuum.

If your Roomba's dying mid-clean or not holding charge, don't give up on it yet! This affordable battery replacement is the robotic CPR your cleaning buddy needs.