???? 1. This is an battery adatper, but not a battery. It just converts one battery model(for Makita) to another battery model(for Dyson Type A), won't consume battery's electricity. So the vacuum cleaner's working time only depends on your Mak.. battery's capacity.
???? 2. Only works with Dyson Type A vacuum cleaners: 917083-01, 17083-2811, 18172-01-04, 17083-4211, 18172-0201, 917083-03 (✖Not fit the Part #: 17083-04). ✖ NOT FOR TYPE B ✖
???? 3. The adapter's bottom slot is only suitable for Makita 18V Lithium ion batteries. The usage feeling of vacuum cleaner will be better with a battery of more than 4 Ah.
???? 4. Convert for Makita Battery to type A battery: Our converter can convert for Makita 18V Li-ion battery to replace for Dyson Type A battery. If you have the Mak.. battery in your home and type A vacuum cleaner, our battery adapter will be a good choice.
???? 5. Please be careful to confirm your vacuum cleaners model whether is Type A model. Our adapter only for Dyson TYPE A.