Let me tell you, this battery brought my ancient Roomba 650 back from the dead! After getting that dreaded charging error code, I almost gave up until I found this gem. The installation was straightforward—just pop out the old battery (using those handy straps) and slide this one in. Pro tip: If your Roomba throws an Error 3 after replacement, try loosening a case screw slightly (weird fix, but it worked!).

The runtime? Impressive. My Roomba now cleans for a solid 40+ minutes—way longer than its original battery in its final days. The included side brushes (bonus!) fit my model perfectly, though they do rattle a bit during operation—small price to pay for free extras.

Charging is quick, and there's no 'memory effect' anxiety—I can top it up whenever without guilt. After three months of daily use, it still holds charge like new. Sure, the manual could be clearer (had to YouTube the battery compartment location), but at this price point? Absolute steal compared to iRobot's repair quotes.

For fellow pet owners: My Roomba now survives golden retriever hair apocalypses without dying mid-clean. Just remember to charge it monthly if storing—keeps the battery healthy per the English instructions.