eBay

For Dewalt:

To for Dyson Type A:

Description:
【Compatible for Dyson Type A Series】for Dyson Type A DC31 DC34 DC35 DC44 Animal 917083-01... (NOT fit type B)
【Fit well for Dewalt 20V battery】Compatible for DEWALT 20V MAX Battery DCB205 DCB200 DCB180 DCD985B DCD771C2 DCS355D1 DCB606 etc. Recommend to use 4A and above batteries because of the high power for Dyson vacuum.
【Adapter Advantage】This adapter enables the listed 18V lithium batteries to be used on for Dyson 22.2V DC31 DC34 (Type A) tools, and lets you enjoy the benefits of extended operating time of lithium-ion batteries on existing for Dyson tools.
【Material Guarantee & Safety System】Made of high quality ABS plastic, solid design, with Safety Circuit Protection, built-in smart control system. Durable and safe, convenient to carry and easy to use.

Package included:
1 * Adapter (battery not included)

Note:
1. Light shooting and different displays may cause the color of the item in the picture a little different from the real thing.
2. The measurement allowed error is +/- 1-3cm.

For Makita:

To for Dyson Type A:

Description:
【Compatible for Dyson Type A Series】for Dyson Type A DC31 DC34 DC35 DC44 Animal 917083-01... (NOT fit type B)
【Fit well for Makita 18V battery】Compatible for Makita 18V High Output Battery Packs, BL1890B, BL1860B, BL1850B, BL1840 etc. Recommend to use 4A and above batteries because of the high power for Dyson vacuum.
【Adapter Advantage】This adapter enables the listed 18V lithium batteries to be used on for Dyson 22.2V DC31 DC34 (Type A) tools, and lets you enjoy the benefits of extended operating time of lithium-ion batteries on existing for Dyson tools.
【Material Guarantee & Safety System】Made of high quality ABS plastic, solid design, with Safety Circuit Protection, built-in smart control system. Durable and safe, convenient to carry and easy to use.

To for Dyson Type B:

Description:
【Compatible for Dyson Type B Series】for Dyson DC31 DC34 DC35 DC44 DC45 DC56 DC57 917083-01 202932-02 965557-03 Animal Handheld Vacuum Cleaner (not for Type A)
【Fit well for Makita 18V battery】Compatible for Makita 18V High Output Battery Packs, BL1890B, BL1860B, BL1850B, BL1840 etc. Recommend to use 4A and above batteries because of the high power for Dyson vacuum.
【Adapter Advantage】This adapter enables for Dewalt 20V lithium batteries to be used on for Dyson 22.2V DC31 DC34(Type B) tools, and lets you enjoy the benefits of extended operating time of lithium-ion batteries on existing for Dyson tools.
【Material Guarantee & Safety System】Made of high quality ABS plastic, solid design, with Safety Circuit Protection, built-in smart control system. Durable and safe, convenient to carry and easy to use.

For Milwaukee:

To for Dyson Type A:

Description:
* This is a battery adapter for Dyson DC31 Type A series vacuum cleaners, not DC31 battery. The Adapter cannot charge battery or vacuum cleaners. And it won't consume battery. If it stop working suddenly when cleaning for 10 to 20s. You just need to fully charge your battery, then, use it. And We recommend using batteries above 3Ah. Overall, the usage time depends on the installed battery capacity. Warm Tips: Remove the adapter when not use.
* Professional replacement battery adapter for Dyson Battery DC35 DC44 DC31 DC34 (ONLY Fit for Dyson Type A) Handheld Vacuum Cleaner
* If you have this DC31 Type A attachment adapter, just need to snap on battery adapter to for Milwaukee Battery, which means you can use the DC31 Series vacuum cleaner without original battery. How smart and What a convenience!
* Made of High-quality Fireproof ABS material Safeguard features against incorrect voltage, battery overload, short circuit, internal overheating.

To for Dyson Type B:

Description:
【Perfect Conversion】: This adapter is suitable for Milwaukee 18V lithium batteries and drives dyson DC31 Type B vacuum cleaners. Enables the 18V lithium battery to be used in Dyson DC31 Type B vacuum cleaners. Amazing conversion adapter.
【ONLY Fit For Type B】: For Dyson Type B DC31 DC34 DC35 DC44 DC45 DC56 DC57 917083-01 202932-02 965557-03 Animal Handheld Vacuum Cleaner, not for other types.
【Fit For Milwaukee Batteries】: Compatible for Milwaukee 18V lithium batteries: 48-11-1850, 48-11-1852, 48-11-1865, 48-11-1815, 48-11-1820, 48-11-1828, 48-11-1840, 48-59-1850 etc.

Kind Tips:
*1. Remove the battery from the adapter when you are not using it.
*2. Cannot be used to charge the battery.
*3. We recommend using a high-capacity battery of 4AH and above to get a longer and smoother experience.
*4.For small capacity or old batteries, we only recommend using the low power mode of the vacuum cleaner.