For anyone changing over the battery, its easy, as shown - but be warned that many of the replacement batteries are not true to their claims. They generally work, but not at a higher capacity as many state on ads/packaging. Your battery shows 4600mAh, but I'd bet it's still only about 2000+ like the original Dyson battery. Same with the 9000mAh batteries. The can't provide a replacement power to that capacity level in the same casing space (for the prices they charge). I have bought and opened numerous batteries and they're just using standard 18650 batteries as per the original - and this explains the run times being the same. It would be interested if you did a follow up after this 1st month use, to see if you received a double-run-time? If so, I would encourage to open up the battery to see which batteries and then promote where you purchased from as most are falsely claiming their specs.
