Every cordless vacuum eventually asks the same question: new battery, or new vacuum? For most other brands the maths answers itself — replacement packs are scarce, overpriced, or simply unavailable in Australia. For Dyson and Roomba, the replacement market is deep, the packs are affordable, and a $33 to $98 battery routinely adds years to a machine that costs five to fifteen times that.
So this hub covers those two brands and nothing else. Dyson owners get model-by-model guides from V6 through V11 with part numbers, runtimes and prices from our live Dyson battery catalogue. Roomba owners get series guides for the 500/600/700 family and the i7, drawing on our iRobot battery range. If your vacuum is neither brand, we’ll say plainly: we don’t currently stock it.
Prefer a second opinion? Our sister site has years of vacuum battery articles — start with replacement batteries for Dyson cordless vacuums and iRobot Roomba battery maintenance, or browse the full AussieBatt battery blog. And if the flat battery belongs to a laptop, our laptop battery guides are next door.