“If I purchase an extra battery and I charge it so it's ready to go if I ever need it, how long will the charge last?”
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There are three different modes one will last you 40 minutes the economic mode and the middle mode which highlights blue will last you 20 plus minutes and the boost mode will last you 8 minutes so I would definitely encourage anyone to purchase this device because I can clean my entire house and I only have one battery and it works perfectly fine and cleaning the device is very easy so I suggest purchasing one today if you have not because this is like the easiest vacuum cleaner I've ever owned and if not as or more powerful than plug in which I have also owned which were dysons
Sorry, there was a problem. Please try again later.Hi there, this is Tia from Dyson. Great question! All batteries are subject to degradation. However, a fully charged back up battery will only slowly deplete it's charge over an extended period of time. Where you have additional batteries, we recommend that you alternate the batteries to maintain even performance. Thanks for your support of Dyson technology! Best wishes, Tia Dyson Customer Support
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