Hi Mike, it's Jack at Dyson.
Our cordless vacuums including DC44 Animal now include a fixed battery which is not designed to be removable in everyday use. As DC44 offers a runtime of up to 20 minutes of high, constant suction, we've found Dyson owners don't usually need an additional battery to complete cleaning tasks.
The battery is removable if it ever needs to be replaced, but we would advise against attempting to swap the batteries in normal use as the machine isn't designed to be used in this way.
For further advice I'd encourage you to contact our Support team directly - you can reach the Dyson Customer Helpline by calling 0800 298 0298 (UK), 1-866-693-9766 (US), or 1-877-397-6622 (CA).
Best wishes,
Jack
Dyson Online Customer Support
www.dyson.com
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